Several controls commonly used in Lazarus forms THitTest - enumerated type giving permissable results of a hit test (position of a mouse click etc relative to objects on a form) THitTests - set of THitTest TStatusPanelStyle - enumerated type for panel style TStatusPanelBevel - enumerated type for panel bevel style TPanelPart - enumerated type listing the possible parts that comprise a Panel TPanelParts - set ot TPanelPart TStatusPanel - one of the panels contained in a StatusBar GetDisplayName - looks first at the Text property; if it is blank calls inherited method TCollectionItem.GetDisplayName PanelChanged - method for dealing with a status panel, one or more of whose parts has changed SetIndex saves the old index value, checks that the supplied value is different then calls inherited method TCollectionItem.SetIndex Create - constructor for TStatusPanel: sets default width, alignment and bevel, calls inherited Create and loads into StatusBar TCollectionItem.Create Destroy - destructor for TStatusPanel: calls inherited Destroy and removes itself from the StatusBar TCollectionItem.Destroy Assign copies text, width, alignment, bevel and style properties from Source if it is of correct type, otherwise calls inherited Assign (which will probably raise an exception) TPersistent.Assign The StatusBar that contains this StatusPanel Alignment - whether left- or right-justified or centered The type of Bevel for the display Style - whether text or something drawn by the owner Text - the string for display in the StatusBar The Width of this panel on the StatusBar TStatusPanels - the collection of Status Panels in this StatusBar GetOwner returns a Status Bar, overriding the inherited method TPersistent.GetOwner Create - constructor for TStatusPanels: calls inherited Create and attaches itself to StatusBar TCollection.Create The StatusBar to which this collection of Status Panels belongs TStatusBar - a strip along the bottom of a form for displaying information on current status

TStatusBar - a strip along the bottom of a form for displaying information on current status

The bar may consist of a single SimplePanel, in which case the displayed text is contained in SimpleText.

However if SimplePanel is false, then there can be multiple panels or sub-sections of the status bar, whose properties are described in Panels.

The property SimpleText can be assigned programatically to display the value of some variable, such as the position of the Splitter in the example

 CreateWnd calls inherited method, then fixes handles if needed TWinControl.CreateWnd DestroyWnd calls inherited method and frees handles TWinControl.DestroyWnd Loaded calls inherited method and fixes handles if needed TWinControl.Loaded UpdateHandleObject - updates all panel parts that have been changed Create - constructor for TStatusBar: calls inherited Create and initialises a number of local variables

Create - constructor for TStatusBar: calls inherited Create and initialises a number of local variables

Among the variables initialised are:

AutoHint (False), Canvas, ControlStyle, Colour, Align, AutoSize, and SimplePanel (True)

 TComponent.Create TWinControl.Create Destroy - destructor for TStatusBar: frees canvas and panels, then calls inherited Destroy TComponent.Destroy TWinControl.Destroy InvalidatePanel - renders the panel with specified index non-valid BeginUpdate - starts the update process EndUpdate - finishes the update process UpdatingStatusBar - returns True if the status bar is being updated The Canvas where the Panels of the StatusBar are to be Painted Panels - the list of strings to be placed in the sub-panels of TStatusBar

If SimplePanel is false, the contents of Panels is displayed.

Contents can be adjusted with a stringlist editor that pops up when the ellipsis (...) next to Panels in the Object Inspector is selected and allows insertion of an arbitrary number of sub-panels with their own strings

 SimpleText - a character string containing the information to be displayed in the Status Bar

SimpleText - a character string containing the information to be displayed in the Status Bar

This is displayed if SimplePanel is true; otherwise the information in Panels is displayed.

 SimplePanel - boolean. Is there just one continuous panel, or several sub-panels?

SimplePanel - boolean. Is there just one continuous panel, or several sub-panels?

If true, the value of SimpleText is displayed; if false, the contents of Panels is displayed.

Contents can be adjusted with a stringlist editor that pops up when the ellipsis (...) next to Panels is selected and allows insertion of an arbitrary number of sub-panels with their own strings

 Event handler for showing a hint when required TCustomPage: The base type for Page TCustomPage: The base type for the tabbed pages found in notebooks Multi-PageControls GetPageIndex - returns the index of the current page SetPageIndex - specifies an index for the current page TabVisible - is the Tab for this page visible? DoHide - perform the code for the OnHide event handler DoShow - perform the code for the OnShow event handler Create - constructor for TCustomPage: calls inherited Create then initialises style, visibility, alignment and caption TControl.Create PageIndex - integer index value for this page in the notebook VisibleIndex - returns the index number of a visible page OnHide - event handler for hiding this page in a notebook OnShow - event handler for showing (making visible) this page of a notebook ImageIndex - integer index value for the image associated with this page TCustomPageClass - class of TCustomPage TNBPages - NoteBook Pages: an array of strings containing the names of the pages TObject.Create Create - constructor for TNBPages: calls inherited Create then sets up the list of pages on the notebook TTabChangingEvent - generic event handling method for a change in a notebook Tab TTabPosition - enumerated type for position of tab relative to page: top, bottom, left or right TTabStyle - enumerated type for tab style: normal, buttons or flat buttons TTabGetImageEvent - generic event handling method for getting an image for a Tab TCTabControlOption - Show the close button on a tab, allow multi-line tabs TCTabControlOptions - set of TCTabControlOption TCustomTabControl: The base type for TTabControl and TPageControl

TCustom Notebook: The base type for TTabControl and TPageControl

A tab control has a series of Tabs, and it may or may not contain pages.

 Multi-PageControls PageClass - the class of page that is included in this NoteBook DoCreateWnd - perform the code for method CreateWnd Change - perform the code for OnChanging UpdateTabProperties - apply all pending changes to the Tab ActivePageComponent - the actual contents of the currently selected Page ActivePage - the name (string) of the Page that is currently selected and is available for interaction Create - constructor for TCustomTabControl: calls inherited Create creates a pagelist, then sets initial bounds and default values for local variables and properties TWinControl.Create Destroy - destructor for TCustomTabControl: clears and frees pages and list, then calls inherited Destroy TWinControl.Destroy TabIndexAtClientPos - the index value of the Tab at the specified position ClientPos GetImageIndex - find the index number of the image associated with the specified Page index IndexOf - returns the index value of a specified page CustomPage - returns the page specified by Index CanChangePageIndex - determine whether it is permissible to change the index of the page GetMinimumTabWidth - find the smallest permissible tab width GetMinimumTabHeight - find the least permissible height for a tab DoCloseTabClicked - perform the action associated with clicking the Close tab for this page (OnCloseTabClicked) Images - the list of images associated with the pages of this notebook OnChanging - event handler for changing a tab OnCloseTabClicked - event handler for clicking on the Close button to close a tab OnGetImageIndex - event handler for getting an image index OnChange - event handler for a change in the page The set of Options for the Notebook: Show close buttons on the tabs, multi-line tabs

The set of Options for the Notebook:

nboShowCloseButtons (display a little CloseButton on the Tab next to the label, to allow the user to close that tab),

nboMultiLine (allows multi-line captions on the Tabs)

 The current Page of the Notebook PageCount - the number of Pages in the Notebook PageIndex - Index number of the current page PageList - the Indexed list of the Pages in the Notebook The contents of the Pages in the Notebook (as Strings) ShowTabs - if True (default condition), show the tabs for each page TabPosition - top, bottom, left or right GetCapabilities - returns the set of capabilities TCTabControlCapability - enumerated type containing possible capabilities of a notebook nbcShowCloseButtons, nbcMultiLine, nbcPageListPopup, nbcShowAddTabButton TCTabControlCapabilities - set of TCTabControlCapability TTabStyle TTabSheet - individual page of a TPageControl; a more elaborate version of TPage

TTabSheet - individual page of a TPageControl; a more elaborate version of TPage

Contains the following features lacked by TPage:

  • Drag/Drop properties
  • Ability to Enable/Disable the page
  • Ability to make the Tab visible or not
 Multi-PageControls HowToUseStdCtrls calls inherited Create and zeroes ImageIndex TComponent.Create Destroy - destructor for TTabSheet: detaches from the Host Dock Site and calls inherited Destroy TComponent.Destroy The PageControl of which this TabSheet is a member TabIndex - the Index value or sequence number of this TabSheet TPageControl - provides a series of tabs along the edge of a multi-page component, to allow selection of one of the pages (TTabSheet) of the component.

TPageControl - provides a series of tabs along the edge of a multi-page component, to allow selection of one of the pages (TTabSheet) of the component.

To use TPageControl, select its icon from the Common Controls tab of the IDE Component Palette, and place it at the desired location on the Form.

Use the Form Designer and Object Inspector to adjust its shape, size, alignment, anchoring, docking and other properties, then select the object and right click with the mouse to bring up a pop-up menu whose frst item is 'AddPage'. After you have added as many pages as you need, the individual pages can be edited by selecting ActivePage in the Object Inspector, choosing the page required, and editing its properties.

While a given page is selected, it is also possible to drop other controls (such as buttons, memo boxes etc) on to the page from the Component Palette.

Inherits most of its properties from TCustomTabControl

Multi-PageControls Create - constructor for TPageControl: sets PageClass to TTabSheet then calls inherited Create TComponent.Create TCustomTabControl.Create FindNextPage - returns the next page (TTabSheet) in the sequence

If GoForward is True, goes to next (higher index) page;

if False, goes to previous (lower index)

 SelectNextPage - goes to next page and selects it SelectNextPage - checking that its tab is visible

If GoForward is True, goes to next (higher index) page;

if False, goes to previous (lower index)

If CheckTabVisible is True, will only move if the tab is visible

 ActivePageIndex - index value of currently selected (active) page Pages - the actual Pages (TTabSheet) that comprise the component TCustomTabControl.Pages ActivePage - the currently selected active page (TTabSheet)

ActivePage - the currently selected active page (TTabSheet)

Note that this overrides the definition in TCustomTabControl, where ActivePage is defined as a String.

 TabIndex - the Index value of the currently selected Tab OnChange - Occurs immediately after a tab is selected. Occurs immediately after a tab is selected. OnChanging - Occurs immediately before a tab is selected. Occurs immediately before a tab is selected. TTabControlStrings - the Strings that appear on the tabs of TTabControl GetTabIndex - returns the Index value of the current Tab SetHotTrack - specifies the status of HotTrack SetImages - specifies the list of images to be used SetMultiLine - specifies whether multiline captions are to be used SetMultiSelect - specifies whether MultiSelection is available SetOwnerDraw - specifies whether an owner-derived drawing can be used SetRaggedRight - specifies whether ragged-right (as opposed to right-justified) alignment is to be used SetScrollOpposite - specifies whether scrollbars are to operate in the opposite sense to normal SetTabHeight - specifies the height of tabs SetTabIndex - specfies an index value for a tab SetTabWidth - specifies the width of a tab Create - constructor for TTabControlStrings: calls inherited Create then sets many local defaults

Create - constructor for TTabControlStrings: calls inherited Create then sets many local defaults

Among the defaults set are:

HotTrack, Multiline, MultiSelect, OwnerDraw, RaggedRight, ScrollOpposite - all False; Tab height and width to zero

 TObject.Create GetHitTestInfoAt - returns the results of a hit test at the specified location X, Y GetSize - returns the size of the tab string IndexOfTabAt - returns the Index value of the tab at the specified location, X, Y RowCount - number of rows (for a multi-row string) TabRec - returns the coordinates of the rectangle for the tab with specified index ImageListChange - method for changing the image list ScrollTabs - scrolls the tabs by an amount specified by Delta TabControlBoundsChange - method for dealing with a change in the bounds of a Tab Control UpdateTabImages - bring the tab images up to date BeginUpdate increments the Update count TStrings.BeginUpdate EndUpdate decrements the Update count An exception is raised if the Update count is zero TStrings.EndUpdate IsUpdating - returns True if in the process of updating The TabControl to which these strings apply TabIndex - the index of the current Tab HotTrack - the property whereby the item under the mouse pointer becomes emphasised TCustomListView.HotTrack The list of Images associated with the Strings for these tabs MultiLine - if True, multiple lines may be used in Tab strings MultiSelect - if True, multiple tabs can be selected, for example by holding down Shift or Ctrl keys while selecting OwnerDraw - if True, Owner object (or calling routine) can specify drawing methods RaggedRight - if True, strings are un-justified or un-aligned, with ragged right margin ScrollOpposite - if True, scrolling proceeds in opposite direction to usual TabHeight- height of the tab TabWidth - width of the tab TTabControlNoteBookStrings - instance of TTabControlStrings for use with a TNoteBook Get returns the text string found on the indexed page TStrings.Get GetObject returns the indexed object from the paged notebook TStrings.GetObject NBChanging - method for dealing with the process for change in a NoteBook NBGetImageIndex - obtains the Image Index associated with a given Tab Index in the NoteBook NBPageChanged - Method for dealing with a NoteBook page that has changed Put writes the supplied string to the indexed page of the notebook TStrings.Put PutObject stores the supplied object at the indexed place in the paged notebook TStrings.PutObject TTabControlStrings.SetImages SetImages - if the supplied ImageList is of correct type, stores it in the notebook Images area SetUpdateState - if Updating is True, calls BeginUpdate; otherwise calls EndUpdate TStrings.SetUpdateState SetTabHeight checks if TabHeight is already equal to AValue, otherwise calls inherited method TTabControlStrings.SetTabHeight SetTabWidth checks if TabWidth is already equal to AValue, otherwise calls inherited method TTabControlStrings.SetTabWidth

Create - constructor for TTabControlNoteBookStrings: calls inherited Create then sets some default Actions

Among the actions set are:

OnGetImageIndex, OnChanging, OnChange. Notebook is created with a nominated parent

 TObject.Create TTabControlStrings.Create Create - constructor for TTabControlNoteBookStrings: calls inherited Create then sets some default Actions Destroy - destructor for TTabControlNoteBookStrings: frees NoteBook then calls inherited Destroy TStrings.Destroy Clear calls the Clear method for the client Notebook TStrings.Clear Delete calls the Delete method for the client NoteBook TStrings.Delete Insert calls the Insert method for the client NoteBok TStrings.Insert The NoteBook for which the tab strings are to be used TDrawTabEvent - generic event handling procedure for drawing a tab, with given index at the specified rectangle TCustomTabControl - base class for TTabControl, a series of Tabs along the edge of a display area; selection of a Tab governs the contents of the DisplayRect TCustomTabControl - base class for TTabControl, a series of Tabs along the edge of a display area; selection of a Tab governs the contents of the DisplayRect Multi-PageControls SetHotTrack - specifies the status of HotTrack CanChange - returns True if the control can be changed CanShowTab - returns True if the specified (indexed) Tab can be shown Change - software emulation of the OnChange event DrawTab - software emulation of the OnDrawTab event GetImageIndex - software emulation of the OnGetImageIndex event SetTabIndex - set the index of the current tab to the specified value UpdateTabImages - bring the images of the tabs up to date ImageListChange - method for signalling a change to the image list GetDisplayRectWithBorder - returns the coordinates of the display rectangle with a border around it DisplayRect - the rectangular area to be used for displaying information determined by the identity of the selected Tab HotTrack - the property whereby the item under the mouse pointer becomes emphasised TCustomListView.HotTrack Images - the list of Images available for display in the DisplayRect MultiLine - whether the Tab's caption is allowed to have multiple lines MultiSelect - whether multiple Tabs are allowed to be selected at the same time (eg by pressing Shift or Ctrl while selecting) OnChange - event handler for a change in the Tabs OnChanging - event handler while Tab is changing OnDrawTab - event handler for drawing a Tab OnGetImageIndex - event handler for finding the index value of the required image OwnerDraw - is the calling routine (Owner) allowed to specify the drawing method? RaggedRight - un-justified or un-aligned text ScrollOpposite - is scrolling to happen in the opposite direction to usual? Style - Tabs, buttons or flat buttons? TabHeight - height of the tabs TabIndex - index value of current Tab. If none selected, default value of -1 is returned TabPosition - top, bottom, left or right Tabs - the actual Tabs expressed as strings TabWidth - width of the tabs Create - constructor for TCustomTabControl: calls inherited Create, sets initial bounds, forms links and sets some defaults TCustomControl.Create TComponent.Create Destroy - destructor for TCustomTabControl: frees links and tabs, then calls inherited Destroy TCustomControl.Destroy TComponent.Destroy IndexOfTabAt - returns the index value of the Tab located at specified X, Y GetHitTestInfoAt - returns information about hit tests at location X, Y TabRect - the rectangle occupied by the specified Tab RowCount - the number of rows in the list of tabs ScrollTabs - scroll through the list of tabs by an amount specifid by Delta BeginUpdate - start the Update procedure EndUpdate - finish the update procedure IsUpdating - returns True if in process of updating TTabControl - a series of Tabs along the edge of a display area; selection of a Tab governs the contents of the DisplayRect

TTabControl - a series of Tabs along the edge of a display area; selection of a Tab governs the contents of the DisplayRect

Use TTabControl by selecting its icon from the Common Controls tab of the IDE Component Palette and placing it at the desired location on the Form. Use the Form Designer and Object Inspector to adjust its shape, size, alignment, anchoring and other properties. Tabs can be aded or removed from the component by selecting it, then right-clicking with the mouse to get a pop-up menu whose first item is 'Add Tab'. Once created, the Tabs can be edited by selecting the Tabs entry in the Object Inspector, and selecting the ellipsis (...) which will cause a pop-up String editor to appear. The tabs can be given new captions, moved up and down the list, or removed altogether, as required.

Each Tab has an Index (starting from 0) and this index can be used to specify an entry from Images for display in the DisplayRect.

 Multi-PageControls OnGetSiteInfo - event handler for getting information about the current site TCustomDrawTarget - enumerated type controlling how a target object is to be drawn TCustomDrawStage a series of constants to define the drawing stages. So far I've only seen cdPrePaint used in this unit. TCustomDrawStateFlag - series of flags to define the DrawState

TCustomDrawStateFlag consists of the following constants:

  • cdsSelected,
  • cdsGrayed,
  • cdsDisabled,
  • cdsChecked,
  • cdsFocused,
  • cdsDefault,
  • cdsHot,
  • cdsMarked,
  • cdsIndeterminate
 TCustomDrawState - set of TCustomDrawStateFlag TCustomDrawState determines how a item will be drawn. TSortType - enumerated type, a series of constants signifying that there is no sorting, or that sorting is according to data, test or both TListItemState - enumerated type denoting the state of a list item TListItemStates - set of TListItemState TListItemFlag - enumerated type, a flag denoting a list item is being destroyed or created TListItemFlags - set of TListItemFlag TListItem - the ancestor class for the Items in TCustomListView and TListView Most properties are inherited from ancestors, TPersistent and TObject Classes.TPersistent Objects.TObject The current ListItem IsEqual to the item specified in the argument AItem TPersistent.Assign Assign - if source has correct type, copies Caption, Data, ImageIndex and SubItems from source, otherwise calls inherited Assign which probably raises an exception TObject.Create Create - constructor for TListItem: calls inherited Create then initialises flags, states, ImageIndex and SubItems Destroy - destructor for TListItem: frees SubItems, sets flags to signify destruction, then calls inherited Destroy TPersistent.Destroy Remove an Item from the list MakeVisible - render the item visible (if PartialOK is True, only part may be visible) Caption - the name given to this item on the list Cut this item from the list (but it can be placed on the clipboard) Pointer to the Data asociated with this item DropTarget - returns True if this is a valid target on the list for dropping Property is true if this item has Focus The index of this item in the list (integer) The index of the image associated with this Item in the list The Owner of the ListItem Whether this Item has been Selected (often denoted by a check-mark) The list of SubItems associated with this ListItem SubItemImages - the list of Images associated with the SubItems TListItems - a list of items with a cache of the last accessed item TListitems has a built-in cache of the last accessed item. This will speed up interface updates since Item.Index is often used for the same item updating more properties. If FCacheIndex = -1 then the cache is not valid. DefineProperties - calls inherited method, then defines some specific binary properties TPersistent.DefineProperties GetCount - find the number of Items in the list GetItem returns the ListItem specified by AIndex Returns the IndexOf the Item specified by AItem SetItem - writes the Index and content of a given Item to a local variable Add an Item to the Collection AddItem - add the specified AItem to the collection Clear - remove all Items from the list TObject.Create Create - constructor for TListItems: calls inherited Create then creates the list Destroy destructor for TListItems: frees the individual items on the list, then calls inherited Destroy TPersistent.Destroy Remove the Item specified by AIndex from the collection FindData - returns the ListItem associated with the specified datapointer Insert an item in the list at AIndex, returning the value of the ListItem InsertItem - procedure to insert AItem at position AIndex in the list Count - the number of items in the collection An Item in the list, specified by its Index value Owner - the ListView that owns this collection of ListItems ImageIndex TListColumn - an individual column in a multi-column List control SetIndex - calls inherited method, and if this is a new index value, changes to the new column index TCollectionItem.SetIndex GetDisplayName returns the Caption; if this is blank, calls inherited method TCollectionItem.GetDisplayName Create - constructor for TListColumn: calls inherited Create then sets defaults for size, alignment and index TCollectionItem.Create Destroy - destructor for TListColumn: if update allowed, updates columns then calls inherited Destroy TCollectionItem.Destroy Assign - if source is of correct type, copies alignment, caption, visibility and size properties, otherwise calls inherited Assign which probably raises an exception TPersistent.Assign Alignment - whether text is to be left or right justified or centered Whether AutoSize is to be operational A text string or Caption (which may be translated) to be used at the top of the column ImageIndex - the index value of the image associated with he ListColumn MaxWidth - the maximum width for this column MinWidth - the minimum permissable with for the column Tag - a general purpose integer variable to be used in association with this column Visible - whether this column can be seen The Width of this column TListColumns - a collection of Items of type TListColumn (the columns appearing in a multi-column list) Create - constructor for TListColumns: sets ownership then calls inherited Create TCollection.Create Destroy - destructor for TListColumns: calls inherited destructor TCollection.Destroy Add calls inherited method, then adjusts state flags TCollection.Add Assign checks that source is of correct type, then adds new columns and copies items from source into them; otherwise calls inherited Assign which probably raises an exception TCollection.Assign TItemChange - enumerated type for kind of change: in text, in image or in state TViewStyle - enumerated type for style of view TLVChangeEvent - generic event handler method for change in List View TLVColumnClickEvent - generic event handler method for a click on a List View column TLVColumnRClickEvent - generic event handler method for a right click on a List View column TLVCompareEvent - generic event handler method for List View comparison TLVDeletedEvent - generic event handler method for deleted items in List View TLVInsertEvent - generic event handler method for List View insertion TLVSelectItemEvent - generic event handler method for List View selection TListViewProperty - enumerated type: a series of constants denoting the properties of a listview

TListViewProperty - enumerated type: a series of constants denoting the properties of a listview

lvpAutoArrange,
    lvpCheckboxes,
    lvpColumnClick,
    lvpFlatScrollBars,
    lvpFullDrag,
    lvpGridLines,
    lvpHideSelection,
    lvpHotTrack,
    lvpMultiSelect,
    lvpOwnerDraw,
    lvpReadOnly,
    lvpRowSelect,
    lvpShowColumnHeaders,
    lvpShowWorkAreas,
    lvpWrapText,
    lvpToolTips
TListViewProperties - set of TListViewProperty TListViewImageList - enumerated type denoting the category of image list TListHotTrackStyle - enumerated type denoting the style of HotTrack TListHotTrackStyles - set of TListHotTrackStyle TCustomListView - the base class for TListView

TCustomListView is the base class for TListView. If you want to define your own ListView class, you should derive it from this class.

 ItemDeleted - the specified listitem is removed from the list ItemInserted - the specified item is inserted into the list InitializeWnd - calls inherited method, then sets various local properties InitializeWnd - calls inherited method, then sets style, adds columns, sets imagelists and item depending properties (scroll bars, sorting etc), adds items and sets other miscellaneous properties (default item height, hot track styles, hover time etc) TWinControl.InitializeWnd Change - Internal procedure to simulate the OnChange event

This is an internal procedure which is called after an item has been changed. It is a programmatic method for simulating the OnChange event if the programmer has assigned a method to this event.

 ColClick - procedure to simulate the OnColumnClick event.

ColClick - procedure to simulate the OnColumnClick event.

Can be used programmatically to execute the same code as is used to respond to the OnColumnClick event

 Delete an Item from the List DoDeletion - performs the actual deletion Performs the insertion DoSelectItem - perform item selection Insert an Item into the List ImageChanged - procedure to signal that an image has chnaged AllocBy - allocate the list by a value Columns - define and change the columns of a ListView

Columns is a TCollectionItem and contains all information on the columns of a listview.

 ColumnClick - determines if the OnColumnClick event will be executed.

The ColumnClick property of the ListView enables or disables the OnColumnClick Event. A call to OnColumnClick will only be done when a method has been assigned to the OnColumnClick event and ColumnClick is set to true (default).

 DefaultItemHeight - sets or reads the default height for an item on the list HideSelection - if True, the selected item is to be hidden HoverTime - the time for which the mouse must hover over the item before its help message is displayed Items - the list of entries in the list. Held as a linked list with a cached index of the last accessed item

Items - the list of entries in the list. Held as a linked list with a cached index of the last accessed item

Items is of type TListitems which has a built-in cache of the last accessed item. This speeds up interface updates since Item.Index is often used for the same item updating more properties. If FCacheIndex = -1 then the cache is not valid.

 LargeImages - an ImageList to be used in association with the list of Items

LargeImages - an ImageList to be used in association with the list of Items

A typical application might have two ImageLists: one ofLargeImages and one of SmallImages, containing two versions of the same collection of images, in large and small format; the index numbers of the first list would correspond with those in the second list.

SmallImages could be displayed beside the text strings in the list view, and the programmer would supply code to ensure that when an item with its associated SmallImage was selected, the corresponding LargeImage would be displayed in another window.

A TImageList control needs to be selected and pasted on to the Form Designer, and the ImageList Editor can be opened from the pop-up menu obtained by right-clicking on TImageList icon in the Form Designer. Then in the StringList editor for Items the correct ImageIndex must be allocated to each entry in the list.

 MultiSelect - enables the selection of more than one entry from Items - by pressing SHIFT or CTRL keys while selecting OwnerData - if True, the Owner's data are to be displayed OwnerDraw - if True, the Owner's Draw method is to be used ReadOnly - determines if the list can only be read, and not written or deleted. ScrollBars - the kind of scrollbars to be used: none, auto, horizontal or vertical ShowColumnHeaders - whether headers for columns are to be displayed ShowWorkAreas - if True, the work areas are to be displayed SmallImages - an ImageList of small images (icons) to be used in association with the list of Items

SmallImages - an ImageList of small images (icons) to be used in association with the list of Items

A typical application might have two ImageLists: one ofLargeImages and one of SmallImages, containing two versions of the same collection of images, in large and small format; the index numbers of the first list would correspond with those in the second list.

SmallImages could be displayed beside the text strings in the list view, and the programmer would supply code to ensure that when an item with its associated SmallImage was selected, the corresponding LargeImage would be displayed in another window.

A TImageList control needs to be selected and pasted on to the Form Designer, and the ImageList Editor can be opened from the pop-up menu obtained by right-clicking on TImageList icon in the Form Designer. Then in the StringList editor for Items the correct ImageIndex must be allocated to each entry in the list.

 SortType - whether to sort by text, by data, both or not at all SortColumn - the column that is being sorted StateImages - an imagelist of icons to demonstrate the state of a process or event ViewStyle - whether to view as a simple list, a list with large or small icons, or as a report OnChange - event handler for a change in the list OnColumnClick - event handler for clicking on a coulmn OnCompare - event handler for comparing list items OnDeletion - event handler for deleting a list item OnInsert - event handler for inserting list item OnSelectItem - event handler for list item selection Create - constructor for TCustomListView: calls inherited Create then initialises columns, the list of items, the canvas and properties and some formats and styles TComponent.Create TWinControl.Create Destroy - destructor for TCustomListView: frees Canvas, calls inherited Destroy and frees columns, links and list items TComponent.Destroy TWinControl.Destroy BeginUpdate - start updating the list view EndUpdate - finish updating the list view BoundingRect - the coordinates of the rectangle containing the ListView Canvas - defines the area on which all graphic material is drawn (Read-only) CheckBoxes - determines if the ListView shows checkboxes beside the items on the list Column - reads the column information of the listview.

This property can be used to read the information of a column.

The column whose information is to be retrieved is determined by an index (AIndex). As with nearly all indexes, this index is 0 based. In column[0] the caption of the listitem is show, in subsequent column the subitems of the listitem are shown.

To add, change or delete a column use the Columns property

 Integer to determine the column of the ListView to retreive information on. DropTarget - location where an item from the list is to be dropped FlatScrollBars - whether the scroll bars are to be displayed flat (default False) FullDrag - if True, the full object is dragged Whether GridLines are to be shown HotTrack - the property whereby the item under the mouse pointer becomes emphasised

HotTrack is the name given to the feature whereby, as the mouse pointer moves over some graphic item (eg a tab, an entry in a list, a button or other control in a form), that item becomes emphasized in some way.

The default list of emphasis possibilities is given by the definition

TListHotTrackStyle = (htHandPoint, htUnderlineCold, htUnderlineHot)

in other words

  • it may be indicated by a hand pointer
  • it may be underlined even when Cold (ie the pointer has covered it and moved on, but the underlining remains)
  • it may be underlined when Hot (ie when the pointer is directly on the item)

This feature can be used in List Views and in TabControls

 TCustomListView.HotTrack The HotTrackStyles available for this control ItemFocused - the item currently receiving focus RowSelect - whether the user can select rows of items (across columns). Default false SelCount - the number of items selected Selected - the current list item that has been selected TopItem - the first item on the list ViewOrigin - the top left coordinate for the current view VisibleRowCount - the number of rows visible in the current view (some items might have scrolled outside the window) TListView - a window showing a list of Items, which may or may not have associated icons

TListView - a window showing a list of items, which may or may not have associated icons

At first, this control looks very like TListBox, but it has a much higher degree of complexity. It is capable of displaying Items in Columns of Rows, and it can have images associated with the list Items.

The important information is held in Items, a string-list that can be created using the string-list editor obtained by right-clicking on the ListView in the Form Editor or by clicking on the ellipsis (...) next to the Items entry in the Object Inspector.

A typical application might have two ImageLists: one ofLargeImages and one of SmallImages, containing two versions of the same collection of images, in large and small format; the index numbers of the first list would correspond with those in the second list.

SmallImages (if assigned to a string-list) can be displayed beside the text strings in the list view, and the programmer would supply code to ensure that when an item with its associated Small Image was selected, the corresponding Large Image would be displayed in another window.

One or more TImageList controls need to be selected and pasted on to the Form Designer, and the ImageList Editor can be opened from the pop-up menu obtained by right-clicking on TImageList icon in the Form Designer. The image list can be populated by reading from files. Then in the StringList editor for Items the correct ImageIndex must be allocated to each entry in the list.

 TProgressBarOrientation - enumerated type with a series of constants denoting the orientation of the progress bar The ancestor class for TProgressBar TCustomProgressBar is the ancestor for TProgressBar. If you want to define your own ProgressBar class, you should derive it from this class. ApplyChanges - apply any changes that have occurred InitializeWnd calls inherited method then applies changes TWinControl.InitializeWnd Loaded calls inherited method then applies changes TWinControl.Loaded Create - constructor for TCustomProgressBar: calls inherited Create, initialises position, orientation and size TComponent.Create TWinControl.Create StepIt - move indicator to new position (current position plus Step) StepBy - move indicator by amount specified in Delta Max - maximum value for progressbar Min - minimum value of progressbar Orientation - horizontal or vertical Position of indicator along progressbar Whether Smooth display (True) or stepped Step - size of increment for display BarShowText - some widget sets allow text to be displayed on the bar to indicate its position (eg 32%) TProgress Bar - a bar that depicts what proportion of a process has been completed TProgress Bar: a control that appears at or near the bottom of form or window. It depicts the progress of a process, or what proportion of the process is complete. A series of coloured rectangles appears in the control, filling it from left to right or from top to bottom as the process progresses HowToUseStdCtrls TUDAlignButton - enumerated type contains constants for alignment of an UpDown button TUDOrientation - enumerated type with constants for orientation of UpDown button (Horizontal or Vertical) TUDBtnType - enumerated type with constants describing the buttons of an UpDown control: Next or Previous TUDClickEvent - generic event handling procedure for clicking on an UpDown button TUDChangingEvent - generic event handling procedure for changes in UpDown button TCustomUpDown - base class for TUpDown - a pair of arrow-like buttons which are used to increment or decrement some controlled variable; often attached to a scroll-bar, but can also control a digital numeric display

TCustomUpDown - base class for TUpDown - a pair of arrow-like buttons which are used to increment or decrement some controlled variable; often attached to a scroll-bar, but can also control a digital numeric display

The control definition itself does not specify the variable upon which the buttons operate. The application programmer is responsible for supplying an event handler for OnClick to determine which button has been selected (designated btNext or btPrev) and incrementing or decrementing the variable in the control with which the UpDown is associated.

The amount by which the variable is changed is set by the integer property Increment with the optional multiplier Thousands (a boolean property).

For example the UpDown control may be used to move a slider up and down a scale by a specified amount for each click; alternatively, a number may be displayed in a text box, and clicking the buttons of the UpDown control may increment or decrement the number displayed by a specified amount.

 OldKeyDown - the previous (stored) value of the key AssociateKeyDown - protected procedure for dealing with action to be taken if an associate key (Shift, Ctrl or Alt) is pressed while the control is active OnAssociateChangeBounds - event handler for a change in bounds of the associate control CanChange - if True, control can be changed Notification calls inherited method; if the operation requires removal of the associate control, this is performed TControl.Notification Click - calls OnClick event handler if it is assigned TControl.Click AlignButton - how to align the button: left or right ArrowKeys - if True, the control can be operated by the keyboard's arrow keys, which would simulate a click on the Next or Previous button Associate - the associated control whose properties (controlled variable) are to be changed by the UpDown control Min - least value of controlled variable Max - greatest value of controlled variable The amount by which the controlled variable is to be increased or decreased on each click Whether horizontal or vertical The Position of the UpDown control If True, multiply all displayed values and the Increment by 1000 If True, displayed control or value starts again from minimum or maximum value if clicking a button would cause incrementing or decrmenting beyond the extreme value OnChanging - event handler for a change in the value of the controlled variable OnClick - special event handler for a click on up or down button

OnClick - special event handler for a click on up or down button

The event handler must determine whether the [next] or [prev] button was clicked, and therefore whether to increment or decrement the controlled variable and adjust the display

 Create - constructor for TCustomUpDown: calls inherited Create, initialises orientation, max and min, bounds, size and alignment TComponent.Create TCustomControl.Create Destroy - destructor for TCustomUpDown: removes connection with associate control and calls inherited Destroy TComponent.Destroy TCustomControl.Destroy TUpDown - a pair of arrow-like buttons which are used to increment or decrement some controlled variable; often attached to a scroll-bar, but can also control a digital numeric display

TUpDown - a pair of arrow-like buttons which are used to increment or decrement some controlled variable; often attached to a scroll-bar, but can also control a digital numeric display

The control definition itself does not specify the variable upon which the buttons operate. The application programmer is responsible for supplying an event handler for OnClick to determine which button has been selected (designated btNext or btPrev) and incrementing or decrementing the variable in the control with which the UpDown is associated.

The amount by which the variable is changed is set by the integer property Increment with the optional multiplier Thousands (a boolean property).

For example the UpDown control may be used to move a slider up and down a scale by a specified amount for each click; alternatively, a number may be displayed in a text box, and clicking the buttons of the UpDown control may increment or decrement the number displayed by a specified amount.

 Message constant. TToolButtonStyle - enumerated type that determines the style of the tool buttons.

These are the possible values of Style:

  • tbsButton - The button appears and functions like a normal button.
  • tbsCheck - Clicking the button toggles the Down property. Once selected, the button remains selected until clicked again.
  • tbsDivider - The button appears as a vertical line on the toolbar (used to separate other controls).
  • tbsDropDown - The button displays a downwards-pointing arrow (suitable for accessing a drop-down menu).
  • tbsSeparator - The button appears as an empty space on the toolbar (used to separate other controls).
 The button appears and functions like a normal button. Clicking the button toggles the Down property. Once selected, the button remains selected until clicked again. The button displays a downwards-pointing arrow (suitable for accessing a drop-down menu). The button appears as an empty space on the toolbar (used to separate other controls). The button appears as a vertical line on the toolbar (used to separate other controls). TToolButtonFlag - a series of flags that can be set by pressing the mouse on the control

tbfPressed, // set while mouse is pressed on button

tbfArrowPressed // set while mouse is pressed on arrow button

 TToolButtonFlags - set of TToolButtonFlag TToolButtonActionLink - links a ToolButton on the ToolBar to an Action on an ActionList AssignClient calls inherited method then sets client as ToolButton TBasicActionLink.AssignClient SetChecked - stores the Checked status (True or False) SetImageIndex - stores the index value of the associated image TToolButtonActionLinkClass - class of TToolButtonActionLink TToolButton is a button control in a TToolBar object.

Use TToolButton to implement buttons on a toolbar. While other controls (including TButton and TSpeedButton) can be placed on toolbars, TToolButton utilizes special toolbar features to simplify the configuration of buttons and offers added display options such as pop-up borders and transparency.

To place tool buttons on a toolbar at design time, select the toolbar, right-click, and choose New Button.

 TButton TSpeedButton HowToUseStdCtrls FToolBar - local variable indicating in which toolbar this button lives CopyPropertiesFromMenuItem - method for copying the properties of the corresponding Menu Item, to ensure that ToolButton and MenuItem produce the same behaviour GetActionLinkClass - returns the Class of the ActionLink for this ToolButton TControl.GetActionLinkClass ActionChange - a method for changing the action associated with the Button TControl.ActionChange AssignTo calls inherited method: if the destination is of correct type, copies ImageIindex to destination and sets it Checked TPersistent.AssignTo TControl.AssignTo BeginUpdate - start the update process EndUpdate - finish the update process TComponent.Loaded RefreshControl - refreshes the drawing of the tool, in case changes have been made SetToolBar - records the existence of a new toolbar UpdateControl - brings the control up to date UpdateVisibleToolbar - updates just the visible part of the toolbar GroupAllUpAllowed - returns True if all buttons in a group are allowed to ne 'Up' Create - constructor for TToolButton: calls inherited Create and sets initial bounds and style TComponent.Create TGraphicControl.Create CheckMenuDropdown - returns True if there is a checked dropdown menu GetCurrentIcon - finds the icon for the current button Index - the sequence number of the current button in the list of buttons AllowAllUp - if True, all buttons are allowed to be 'Up' at the same time. Default False Is this button Down (ie has it been selected)? Default false A DropDownMenu that appears when this button is selected

A DropDownMenu that appears when this button is selected

It uses the same code as a TPopupMenu, and offers a series of additional menu choices.

 Is this button a member of a group? Default false

Is this button a member of a group?

This would mean behaviour similar to the radio buttons in a TRadioGroup, where only one button in the group can be selected, or the check boxes in a TCheckGroup where more than one item can be selected but the members of the group interact in some way.

 ImageIndex - the index value of the image from the imagelist to be used with this button Indeterminate - if True, this button is in an unspecified state. Default False Is this button Marked (ie has it been selected)? Default false The item on the Main Menu with which this tool button is associated

The item on the Main Menu with which this tool button is associated

Typically, the buttons on the toolbar would each point to an entry on the menu action list, which could also be accessed by using the Main Menu

 Has this button been wrapped to the next row? Determines the style of the tool button. See TToolButtonStyle for the possible Style values. TToolBarFlag - enumerated type for flags denoting status of ToolBar TToolBarFlags - set of TToolBarFlag CheckMenuDropdown - returns True if there is a checked dropdown menu ClickButton - software emulation of the OnClick event FindButtonFromAccel - returns the Button corresponding to the specified accelerator key RepositionButton - method for re-positioning a button RepositionButtons - method for re-positioning several buttons WrapButtons - returns True if changing to NewHeight and NewWidth causes wrapping of buttons Create - constructor for TToolBar: calls inherited Create and sets many formatting and size defaults

Create - constructor for TToolBar: calls inherited Create and sets many formatting and size defaults

Among the variables initialised and defaults set are the list of buttons, button width and height, style, indentation, alignment, links for image change, the bounds and the edge borders

 TComponent.Create Destroy - destructor for TToolBar: frees buttons and links then calls inherited Destroy TComponent.Destroy TCustomControl.Destroy BeginUpdate - starts the update process EndUpdate - finishes the update process SetButtonSize - stores new values for height and width ButtonCount - the number of buttons on the ToolBar Lists the tool buttons (TToolButton) in the toolbar.

Buttons maintains a list of TToolButton instances. All tool buttons that share a TToolBar parent have the same height and (except for separators and dividers) the same width. Other controls on a toolbar are held in place by invisible separators, which are automatically created and destroyed.

To add tool buttons to the toolbar at design time, select the toolbar, right-click, and choose New Button. To create a space (separator) between one button and the next, select New Separator. To create a divider between buttons, add a button and set its Style propery to tbsDivider. Other controls may be added to the toolbar directly from the Component palette.

ButtonList - the list of Buttons (as a TList) RowCount - the number of Rows of Buttons ButtonHeight - the height of the buttons ButtonWidth - the width of the buttons The Images on the Image List that are NOT selected for display EdgeBorders - which borders form the edge EdgeInner - this toolbar has an inner edge EdgeOuter - this toolbar has an outer edge Should the toolbuttons be displayed Flat (rather than in relief)? Default false The Images on the Image list that are selected for display The Images to be displayed on the buttons Indent - the amount by which the buttons should be indented Default is 1 Should the contents of the toolbar be displayed as a List? Default false ShowCaptions - should the captions be shown for the buttons? (Default False) Is the ToolBar to be Transparent? Default False Wrapable - enables wrapping buttons to the next row if there are too many for the current row TTrackBarOrientation - enumerated type denoting horizontal or vertical orientation for TrackBar TTickMark - enumerated type denoting position of tick marks relative to the TrackBar TTickStyle - enumerated type denoting style of tick marks TTrackBarScalePos - enumerated type denoting position of the scale for a TrackBar TCustomTrackBar - the base class for TTrackBar

TCustomTrackBar defines many of the properties inherited by TTrackBar, a device that allows the user to determine the value of a variable using a quasi-analog slider

 ApplyChanges - implement any pending changes DoChange - system message to implement changes Create - constructor for TCustomTrackBar: calls inherited Create then initialises style, position, size and bounds TComponent.Create TWinControl.Create SetTick - set the interval for ticks on the taskbar (integer) Frequency - how frequently the position of the slider is to be read and updated (currently unsupported) Line-Size - increment for slider position when an arrow key is pressed Max - the value corresponding to full movement of the slider. Default = 10 Min - the value associated with the minimum slider position. Default = 0 OnChange - action to be taken on change in the slider position Orientation - horizontal or vertical PageSize - increment for slider position when PageUp or PageDown key is pressed Position - the location of the slider along the track bar. Represents the Return value from the control ScalePos - whether scaling label appears at top, bottom, left or right Tickmarks - whether the ticks are above/left, below/right, or both Tickmarks - where the ticks appear relative to the bar: above/left, below/right, or both TickStyle - none, produced automatically, or calculated manually TTrackBar: a device which allows the user to determine the value of a variable using a quasi-analog slider

TTrackBar: a device which allows the user to determine the value of a variable using a quasi-analog slider

The device looks like a slider-potentiometer control on a hi-fi amplifier, and consists of a slider which can be moved along a bar using the mouse. Tick marks can be displayed along one or both edges, giving an indication of the proportion of the maximum value of the controlled variable that is being selected.

The Position property indicates the distance along the bar that the slider has been placed, either by the program or by mouse capture and movement

In the example, movement of the slider is detected and shown in the associated TProgressBar.

 HowToUseStdCtrls TNodeState - enumerated type denoting the status of a TreeNode

Cut, DropHilited, Focused, Selected, MultiSelected, Expanded, HasChildren, InTree, Deleting, Bound

 TNodeStates - set of TNodeState TNodeAttachMode - enumerated type denoting mode of attachment of TreeNodes

TNodeAttachMode - enumerated type denoting mode of attachment of TreeNodes

naAdd,           // add as last sibling of Destination
    naAddFirst,      // add as first sibling of Destination
    naAddChild,      // add as last child of Destination
    naAddChildFirst, // add as first child of Destination
    naInsert,        // insert in front of Destination
    naInsertBehind   // insert behind Destination
TAddMode - enumerated type containing a series of constants to determine the place where a node should be placed in a tree.

This sets consist of three values:

taAdd: Adds the node as the last child.

taAddFirst: Adds the node as the first child.

taInsert: Adds the node in front another node.

This set is used in TTreeNode.InternalMove and TTreeNodes.InternalAddObject

TTreeNodeArray - pointer to a TTreeNode ETreeNodeError - exception type for errors arising from the code of TTreeNode ETreeViewError - exception type for errors arising from the code of TTreeView A array of strings containings names for NodeAttachModes This is a constant array of string containing names for the modes to attach a node. An array of strings to store the names for the different TAddModes. Type TAddMode = (taAddFirst, taAdd, taInsert); Const AddModeNames: array[TAddMode] of string = ('taAddFirst', 'taAdd', 'taInsert'); A constant for the identifier of a LCL stream TTVChangingEvent - a generic event handling method for changing a specified Tree Node if AllowChange is True TTVChangedEvent - generic event handling method for a changed Tree Node TTVEditingEvent - generic event handling method for editing a specified node, if AllowEdit is True TTVEditedEvent - generic event handling method for a node that has been edited TTVExpandingEvent - generic event handling method for expanding a tree node, if AllowExpansion is True TTVCollapsingEvent - generic event handling method for collapsing a Tree Node if AllowCollapse is True TTVExpandedEvent - generic event handling method for a Tree Node that has been expanded TTVCompareEvent - generic event handling method for comparing two Tree Nodes TTVCustomDrawEvent - generic event handling method for Tree View custom drawing TTVCustomDrawItemEvent - generic event handling method for Tree View Item custom drawing TTVAdvancedCustomDrawEvent - generic event handler method for Tree View advanced custom drawing TTVAdvancedCustomDrawItemEvent - generic event handler method for Tree View Item advanced custom drawing TTVCustomCreateNodeEvent - generic event handling method for Tree View node creation TTreeNodeCompare - generic function to compare Tree Nodes: returns -1 if Node1 is less than Node2, zero if equal, +1 if Node1 is greater A pointer to TTreeNodeInfo TTreeNodeInfo - record structure for (new) Tree Node information A pointer to TDelphiNodeInfo TDelphiNodeInfo - record structure for Tree Node information (for Delphi compatability) TTreeNode is a single item that holds data in TTreeView A TTreeNode is part of a TTreeView and is used for storing data. This can be done by using the Caption property or for more complex data the Data property can be used. Each node can have sibling or child items associated with it. Create - constructor for TTreeNode: calls inherited Create then itntialises indexes and sets subtree count to 1 TObject.Create AlphaSort - if True, sorted alphabetically Assign - if Source is of correct type, copies details directly, otherwise calls inherited Assign which probably raises an exception TPersistent.Assign Collapse - method for collapsing tree view to show only the main stems. Apply recursively if Recurse is True CustomSort - if True, the customised sort method specified in SortProc is to be used DefaultTreeViewSort - returns result of string comparison between names of Node1 and Node2

DefaultTreeViewSort - returns result of string comparison between names of Node1 and Node2

DefaultTreeViewSort compares the text of two TreeNodes and returns the following result:

< 0
if Node1.Text<Node2.Text.
0
if Node1.Text=Node2.Text.
> 0
if Node1.Text>Node2.Text.

The comparision takes into account Ansi characters, i.e. it takes care of strange accented characters. Contrary to AnsiCompareText, the comparision is case sensitive.

Delete the curent TreeNode DeleteChildren - remove the descendent Nodes in the tree structure Destroy - destructor for TTreeNode: unbinds all references, frees data and calls inherited Destroy TPersistent.Destroy DisplayExpandSignLeft - returns the position of the left edge of the expand sign DisplayExpandSignRect - returns the coordinates of the rectangle within which the expand sign are displayed DisplayExpandSignRight - returns the position of the right edge of the expand sign (ie takes into account the width of the icon etc) DisplayIconLeft - returns the position of the actual icon for the expand sign (usually 1 pixel greater than DisplayExpandSignLeft) DisplayRect - returns the coordinates of the rectangle containing the current entry; if TextOnly is True, returns the coordinates for the text DisplayStateIconLeft - returns the position of the State Icon DisplayTextLeft - returns the position of the left edge of the text DisplayTextRight - returns the position of the right edge of the text EditText (currently set False - to be implemented) EndEdit (to be implemented) Expand - method for expanding the current node. If Recurse is True, also expand all descendent nodes ExpandParents - apply expansion to the parents of the current node Bottom - returns the position of the displayed tree structure (whether or not it is expanded) BottomExpanded - returns the position of the bottom of the fully expanded tree structure GetParentNodeOfAbsoluteLevel - returns the parent of all nodes at this absolute level GetFirstChild - returns the first child node of this parent GetHandle - returns the operating system Handle for the current node GetLastSibling - returns the last node at the same level as the current node GetLastChild - returns the last child node of this parent GetLastSubChild - returns the last sub-child node of this parent GetNext - returns the next node in the list GetNextChild - returns the next child node of the parent specified by AValue GetNextExpanded - returns the next expanded node GetNextMultiSelected - returns the next node in a multiselection GetNextSibling - returns the next node in the same level as the current node GetNextVisible - returns the next visible (ie not hidden) node GetPrev - returns the previous node in the list GetPrevChild - returns the previous child node of the parent specified by AValue GetPrevExpanded - returns the previous expanded node GetPrevMultiSelected - returns the previous node in a multi-selection GetPrevSibling - returns the previous node in the same level as the current node GetPrevVisible - returns the previous visible (not hidden) node HasAsParent - returns True if the node specified by AValue has a parent IndexOf - returns the index of the node specified by AValue IndexOfText - returns the index of the node containing the specified Text string FindNode - returns the node containing the specified text string MakeVisible - method for rendering a node visible MoveTo - method for relocating a node to the specified Destination using the specified mode of attachment

MoveTo - method for relocating a node to the specified Destination using the specified mode of attachment

Definition of the modes of attachment:

    naAdd,           // add as last sibling of Destination
    naAddFirst,      // add as first sibling of Destination
    naAddChild,      // add as last child of Destination
    naAddChildFirst, // add as first child of Destination
    naInsert,        // insert in front of Destination
    naInsertBehind   // insert behind Destination
MultiSelectGroup - method for multi-selecting a group of nodes Update the contents and appearance of the curent node ConsistencyCheck - makes sure all references to and from the node are consistent WriteDebugReport - for debugging. If Recurse is True, report for all descendants as well AbsoluteIndex - the absolute index of the current node, ie without taking into account the level of ancestry Count - the number of nodes Cut - whether the node has been Cut Property of type pointer used to store custom data in a node. Data - pointer to the Node's data Deleting - if True, the node is being deleted Focused - if True, the node has received focus DropTarget - if True, the current node is a target for a drop process Expanded - if True, the node has been expanded Handle - the operating system handle for this node HasChildren - if true, this node has descendent nodes The Height of the current node ImageIndex - the index of the image associated with the current node. Default -1 if no image The Index value of the current node IsVisible - if True, the current node is visible (not hidden) IsFullHeightVisible - if True, the full height of the TreeNode is visible within the display window Items - the index of the current node within the list of items The Level of descendance of indentation of the current node MultiSelected - if True, several nodes have been selected simultaneously (eg using the Shift or Ctrl key while selecting) OverlayIndex - the index of the overlay The Owner control of the current TreeNode The Parent of the current node Selected - if True, the current node has been selected SelectedIndex - the index of the current node if selected: default - if not selected SubTreeCount - the number of sub-trees StateIndex the index of the state (within an enumerated type)

StateIndex the index of the state (within an enumerated type)

Definition of enumerated type NodeState:

nsCut, nsDropHilited, nsFocused, nsSelected, nsMultiSelected, nsExpanded, nsHasChildren, nsInTree, nsDeleting, nsBound

 The Text string of the current node the collection of TreeNodes to which this node belongs The TreeView to which this node belongs The position of the Top of the current node PNodeCache - pointer to TNodeCache TNodeCache - a cache (temporary storage record) for a TTreeNode and its index A collection or list of TTreeNode InternalAddObject - method for adding text of data within the structure of the current node; returns the value of the new updated node GetCount - returns the number of nodes in the collection SetItem - method for recording details of specified node SetUpdateState - records status of update process Create - constructor for TTreeNodes: calls inherited Create TObject.Create Destroy - destructor for TTreeNodes: calls inherited Destroy TPersistent.Destroy Add - adds a sibling node with specified text string, and returns the new node AddChild - adds a child node with specified text to the parent node, and returns the new node AddChildFirst - adds a node with specified text as the first child of the parent node, and returns the new node AddChildObject - adds a child node with specified text and data-pointer to the parent node and returns the new node AddChildObjectFirst - adds a node with specified text and data as the first child of the parent node, and returns the new node AddFirst - adds a node with specified text as the first node in the same level as SiblingNode. and returns the new node AddObject - adds a node with specified text and data-pointer in the same level as SiblingNode. and returns the new node AddObjectFirst - adds a node with specified text and data-pointer as the first node in the same level as SiblingNode. and returns the new node Assign - if Source is of correct type, copies properties directly, otherwise calls inherited Assign which probably raises an exception TPersistent.Assign BeginUpdate - start the update process Clear the current node ClearMultiSelection - clears a series of nodes in a multi-selection (provided the selection has not already been cleared) IsMultiSelection - returns True if this node is part if a multi-selection Delete this node EndUpdate - finish the update process GetFirstNode - returns the first node in the collection GetLastNode - last top level node GetLastSubNode - absolute last node GetLastExpandedSubNode - absolute last node FindTopLvlNode - returns a top level node containing the specified text string Insert a node with the specified text just before the specified Next node, and returns the new node InsertObject - inserts a new node with specified text and data just before the specified Next node, and returns the new node InsertBehind - inserts a new node with specified text just behind specified Previous node, and returns the new node InsertObjectBehind - inserts a new node with specified text and data-pointer just behind specified Previous node, and returns the new node ConsistencyCheck - makes sure all references to and from the nodes are consistent WriteDebugReport - for debugging Count - the number of nodes in the collection KeepCollapsedNodes - if True, preserves the nodes that have been collapsed Owner - the TTreeView that owns the collection of nodes TopLvlCount - the number of nodes at the top level of the tree structure TopLvlItems - the list of nodes at the top level of the tree structure TTreeViewState - enumerated type containing the permissible values for state of a TTreeView

TTreeViewState - enumerated type containing the permissible values for state of a TTreeView 

tvsScrollbarChanged,
    tvsMaxRightNeedsUpdate,
    tvsTopsNeedsUpdate,
    tvsMaxLvlNeedsUpdate,
    tvsTopItemNeedsUpdate,
    tvsBottomItemNeedsUpdate,
    tvsCanvasChanged,
    tvsDragged,
    tvsIsEditing,
    tvsStateChanging,
    tvsManualNotify,
    tvsUpdating,
    tvsPainting,
    tvsMouseCapture,
    tvsWaitForDragging,
    tvsDblClicked,
    tvsTripleClicked,
    tvsQuadClicked,
    tvsSelectionChanged
TTreeViewStates - set of TTreeViewState TTreeViewOption - enumerated type containing the permissible values for Options in TreeViews

TTreeViewOption - enumerated type containing the permissible values for Options in TreeViews

tvoAllowMultiselect,
    tvoAutoExpand,
    tvoAutoInsertMark,
    tvoAutoItemHeight,
    tvoHideSelection,
    tvoHotTrack,
    tvoKeepCollapsedNodes,
    tvoReadOnly,
    tvoRightClickSelect,
    tvoRowSelect,
    tvoShowButtons,
    tvoShowLines,
    tvoShowRoot,
    tvoShowSeparators,
    tvoToolTips,
    tvoNoDoubleClickExpand
TTreeViewOptions - set of TTreeViewOption A set of TreeViewOptions which are set be default.

A series of defaults used to set the options of a TreeView object when first placed on a form. This set consists of the following items:

tvoShowRoot, 
    tvoShowLines,
    tvoShowButtons,
    tvoHideSelection, 
    tvoToolTips,
    tvoKeepCollapsedNodes,
    tvoAutoItemHeight

For the meaning of these options, see the documentation of TTreeView.

 TTreeViewExpandSignType - enumerated type for specifying the symbol type to appear in treeviews to denote whether or not the node is expanded: either a +- sign or an arrow TCustomTreeView - ancestor class for TTreeView

TCustomTreeView - ancestor class for TTreeView, which displays a collection of items in a hierarchical tree form. This class defines many properties which are inherited by children classes, including loading the data from files or streams, saving to files or streams, updating, sorting alphabetically, editing, making visible or invisible, expanding or collapsing the tree display, and many more.

Please note that Accessibility support in TCustomTreeView might make this control slower if there is a very large number of items, for example, 10.000+ items. If the performance impact is unacceptable it is possible to turn accessibility off for tree view items by setting TCustomTreeView.AccessibilityOn to false. The default value is true.

 SetHotTrack - specifies the status of HotTrack FChangeTimer - local variable to act as timer for changes CanChange - returns True if a given TreeNode can be changed CanCollapse returns True if a given TreeNode is able to be collapsed CanEdit - returns True if a Given TreeNode is allowed to be edited CanExpand - returns True if the specified TreeNode can be expanded CreateNode - creates a new node in a TreeView and returns its content CustomDraw - returns True if Custom Drawing is proceeding in the specified Rectangle

CustomDraw - returns True if Custom Drawing is proceeding in the specified Rectangle

Stage indicates whether PrePaint, PostPaint, PreErase or PostErase

 Progress CustomDrawItem - returns True if Custom Image drawing is proceeding at the specified TreeNode

CustomDrawItem - returns True if Custom Image drawing is proceeding at the specified TreeNode

State denotes one of Selected, Grayed, Disabled, Checked, Focused, Default, Hot, Marked or Indeterminate

Stage indicates whether PrePaint, PostPaint, PreErase or PostErase

If PaintImages is True, Images should be painted as well as text

 GetMaxLvl - returns the maximum level of branching of the tree structure GetMaxScrollLeft - returns maximal extent of scrolling to the left GetMaxScrollTop - returns the maximal extent of scrolling upwards GetNodeAtInternalY - returns the node at the specified internal (ie relative) Y coordinate GetNodeAtY - returns the node at the specified (absolute) Y coordinate GetNodeDrawAreaHeight - returns the height for the area in which node is drawn GetNodeDrawAreaWidth - returns the width for the area in which node is drawn IsCustomDrawn - returns True if the specified target node is custom drawn IsNodeVisible - returns True if the specified node is visible IsNodeHeightFullVisible - returns True if the full height of the specified node is visible in the current view IsInsertMarkVisible - returns True if an Insert mark is visible Change - software emulation of the OnChange event Collapse - software emulation of the OnCollapsed event Delete - remove the specified node from the tree structure (software emulation of the OnDeletion event) DoPaint - perform the actual painting DoPaintNode - perform the actual painting of the specified node EndEditing - finish editing EnsureNodeIsVisible - method to make sure specified node is visible Expand the specified node GetImageIndex - returns the index of the image associated with the specified node GetSelectedIndex - returns the index of the selected node SetOptions - specifies the options for the TreeView UpdateDefaultItemHeight - brings the value of the default item height up-to-date UpdateInsertMark - see if there is an insert mark at X,Y and put one in if necessary DoSelectionChanged - perform the code required for a change in selection WMHScroll - LCL Message for horizontal scroll WMVScroll - LCL Message for Vertical scroll Allows to turn accessibility off to speed up the control This property is provided for the case when a tree view contains a huge amount of items, lets say 10.000+. In this case accessibility might slow the tree down, so turning this property off might make things faster. AutoExpand - if True, the tree structure is automatically expanded when a node is selected HideSelection - if True, the selected part of the tree is to be hidden HotTrack - the property whereby the item under the mouse pointer becomes emphasised TCustomListView.HotTrack Images - the ImageList to be used in association with the list of TreeNodes Indent - the amount by which each successive level of branching is to be indented in the tree structure Items - the collection of TreeNodes that comprise the TreeView OnAdvancedCustomDraw - event handler for advanced custom drawing OnAdvancedCustomDrawItem - event handleer for advanced custom drawing item OnChange - specialised event handler for a change in the TreeView OnChanging - specialised event handler while TreeView is being changed OnCollapsed - specialised event handler when part of the tree is collapsed OnCollapsing - specialised event handler while part of the tree is being collapsed OnCompare - specialised event handler for comparisons within the TreeView OnCustomCreateItem - event handler for custom item creation OnCustomDraw - event handler for custom drawing OnCustomDrawItem - event handler for custom drawing item OnDeletion - specialised event handler for deletion of node(s) from the tree OnEdited - specialised event handler when the TreeView has been edited OnEditing - specialised event handler while a TreeView is being edited OnExpanded - specialised event handler when a TreeView has been expanded OnExpanding - specialised event handler while a TreeView is being expanded OnGetImageIndex - event handler for finding the index of an image OnGetSelectedIndex - event handler for finding index of selected item OnSelectionChanged - event handler for a change in the selection ReadOnly - if True, the TreeView can only be observed, and not Written to or changed. Default False RightClickSelect - if True, a Right Click selects an Item. Default False RowSelect - if True, a row is selected ScrolledLeft - the position of the tree when fully scrolled to the left ScrolledTop - the position of the tree when fully scrolled to the top ShowButtons - if True, buttons are displayed ShowLines - show the connecting lines of the tree structure ShowRoot - if True, the root of the tree structure is displayed ShowSeparators - if True, separators are shown between items SortType - the way the items are to be sorted: None, by Data, by Text or Both StateImages - the list of images to denote state of the tree (expanded, contracted etc) ToolTips - if True (default), pop-up tool tips are to be shown Create - constructor for TCustomTreeView: calls inherited Create then sets defaults for style, size, etc

Create - constructor for TCustomTreeView: calls inherited Create then sets defaults for style, size, etc

Among the variables initialised and defaults set are:

size, colour, the symbols for expansion etc, the border style and width, scroll bars, options, indentation, timers, action links

 TComponent.Create TCustomControl.Create Destroy - destructor for TCustomTreeView: frees images, nodes and links, then calls inherited Destroy TComponent.Destroy TCustomControl.Destroy If True, sort alphabetically ConsistencyCheck - check that indexes of treenodes match those of images etc CustomSort - if True, an external sorting method specified by SortProc is to be used GetHitTestInfoAt - returns the result of a hit test at the point (X, Y) GetNodeAt - returns the TreeNode at position (X. Y) GetInsertMarkAt - find if there is an insert mark at the specified coordinates SetInsertMark - place an Insert mark at the specified node in the tree SetInsertMarkAt - place an insert mark at the specified coordinates IsEditing - returns True if editing is in progress BeginUpdate - start the update of the display EndUpdate finishes updating the display FullCollapse - method to collapse the treeview fully, ie show just the root FullExpand - method to expand the treeview fully, and show all the branches LoadFromFile - load the data from the specified file LoadFromStream - load data from the specified stream SaveToFile - saves the data to the specified file SaveToStream - save the data to the specified stream WriteDebugReport - used for debugging LockSelectionChangeEvent - if the selection has changed, lock its status UnlockSelectionChangeEvent - unlock a selection to allow it to be changed GetFirstMultiSelected - returns the first node from a multiple selection This works only if tvoAllowMultiSelect is enabled. SelectionVisible - returns True if a selection is visible MakeSelectionVisible - method for making a selection visible BackgroundColor for the treeview BottomItem - the last item on the list DefaultItemHeight - default height for items on the list If tvoAutoItemHeight is set in Options this value is set automatically depending on font and icons. DropTarget - the target node for dropping a dragged item ExpandSignType - the symbols to denote whether a list is expanded or collapsed; default is plus or minus InsertMarkNode - place a marker on the specified node InsertMarkType - the type of marker to be inserted KeepCollapsedNodes - if True, the collapsed nodes are to be retained The set of Options for displaying the tree view

The set of Options for displaying the tree view

List of available options:

tvoAllowMultiselect,
    tvoAutoExpand,
    tvoAutoInsertMark,
    tvoAutoItemHeight,
    tvoHideSelection,
    tvoHotTrack,
    tvoKeepCollapsedNodes,
    tvoReadOnly,
    tvoRightClickSelect,
    tvoRowSelect,
    tvoShowButtons,
    tvoShowLines,
    tvoShowRoot,
    tvoShowSeparators,
    tvoToolTips,
    tvoNoDoubleClickExpand
ScrollBars - the style of scroll bars for the treeview display The Selected tree nodes SelectionColor - the colour to be used for the selected nodes, to distinguish them from the others SeparatorColor - the colour to be used for separators TopItem - the first visible node of the tree

Use TopItem to get the topmost visible node. It is usually needed when tree view contains many nodes and scroll bar is requred to display them all. If you need the first node of the tree regardless of visibility use Items[0]

 Items GetNodeAtY TreeLineColor - the colour to be used for the lines showing the tree structure ExpandSignColor - the colour to be used for the expand/collapse symbols TTreeView is a control that displays a hierarchical list of items Use a TTreeView to display a hierarchical list of items. Items are shown by their caption and an optional bitmap. AutoExpand - automatically expand the tree when an item is selected HideSelection - the selected items are to be hidden HotTrack - the property whereby the item under the mouse pointer becomes emphasised TCustomListView.HotTrack The Bitmap image associated with each item in the display Indent - the amount by which each successive branching level is to be indented OnEditing - event handler during the editing process TTreeNodeExpandedState - class to store and restore the expanded state of a TTreeView. The nodes are identified by their Text property.

TTreeNodeExpandedState - class to store and restore the expanded state of a TTreeView. The nodes are identified by their Text property.

Usage example:

// save old expanded state
      OldExpanded:=TTreeNodeExpandedState.Create(ATreeView);
      ... change a lot of nodes ...
      // restore old expanded state
      OldExpanded.Apply(ATreeView);
      OldExpanded.Free;
NodeText - the text in the current node Children - the children of the current node, as an AvgLvlTree Create - constructor for the rest of the tree structure Clear the nodes from the tree structure CreateChildNodes - constructor for the offspring nodes Apply - begin reconstructing the tree structure by inserting the first node Apply - continue reconstructing the tree structure by adding the remaining nodes in succession Function to compare the node text of two nodes.

This function does an ANSICompare on the NodeText of two nodes. The parameters Data1 and Data2 are pointers to the nodes to be compared. The result is the same is the result from ANSICompareText.

-1: The nodetext from the first node is lower then the nodetext from the second.

0: The nodetext-s from both nodes are equal.

1: The nodetext from the first node is higher then the nodetext from the second.

 Function to compare the given text with the nodetextof the specified node.

This function does an ANSICompare on the NodeText of two nodes. The parameters Data1 and Data2 are pointers to the nodes to be compared. The result is the same is the result from ANSICompareText.

-1: The given text is lower then the nodetext from the given node.

0: The given text is equal to the nodetext from the given node.

1: The given text is higher then the nodetext from the given node.

 Function InitCommonControl Implemented for Delphi compatibility, always returns true; Procedure CheckCommonControl. Implemented for Delphi compatibility. Procedure does not execute any code. Procedure used to register the components. TCustomHeaderControl - base class for THeaderControl, a header strip of user-designed sections which allow selection of pages or actions

TCustomHeaderControl - base class for THeaderControl, a header strip of user-designed sections which allow selection of pages or actions

THeaderControl offers a widget that could be placed along the edge of a Panel or Form, allowing a highly customised mechanism for selection. However, there are no intrinsically associated display areas, and it is the developer's responsibility to supply an index associated with the selection from the THeaderControl and determining what action is to occur or what is to be displayed in any attached Panel or Form.

 Multi-PageControls THeaderControl, a header strip of user-designed sections which allow selection of pages or actions

THeaderControl, a header strip of user-designed sections which allow selection of pages or actions

THeaderControl offers a widget that could be placed along the edge of a Panel or Form, allowing a highly customised mechanism for selection. However, there are no intrinsically associated display areas, and it is the developer's responsibility to supply an index associated with the selection from the THeaderControl and determine what action is to occur or what is to be displayed in any attached Panel or Form.

THeaderControl is used by selecting its icon from the Common Controls tab of the IDE Component Palette, and placing it on the Form in the desired position. It may be convenient to dock it with a Form or Panel whose properties it is to be used for controlling.

After size, position, docking, alignment, anchoring etc have been performed using the Object Inspector or Form Designer, the Sections of the Header can be created by selecting the control, right-clicking with the mouse and choosing 'Section Editor'. A Stringlist editor will pop up, with options to add, delete or move entries up or down the list. Each entry is given an Index which can be used in OnClick event handlers to determine the action to be taken when that section is selected at run-time.

 Multi-PageControls PaintSection - method for painting the current section (specified by Index) of the Header GetSectionAt - find the index for the section located at point P Destroy - destructor for TCustomHeaderControl: frees sections then calls inherited Destroy TComponent.Destroy TCustomControl.Destroy Create - constructor for TCustomHeaderControl: calls inherited Create, creates the sections and initialises style and bounds TComponent.Create TCustomControl.Create DragReorder - find out if the sections are allowed to be re-ordered by dragging Images - the list of Images available for selection using this tool Sections - the short segments of the header, separated by vertical bars, that function as the elementary selection units of the header OnSectionDrag - event handler for dragging the section of header OnSectionEndDrag - event handler for ending the drag process for this section OnSectionClick - event handler for mouse click on this section of header OnSectionResize - event handler for re-sizing this section of the header OnSectionTrack - event handler for tracking this section OnSectionSeparatorDblClick - event handler for double-click on the separator between sections IndexOfTabWithCaption - returns the index value of the tab that has the specified Caption THeaderSections - a collection of Items ot type THeaderSection, the individual parts of a THeaderControl AddItem - adds a HeaderSection to the Header at the position specified by Index Items - the series of individual HeaderSections in the collection THeaderSection - the individual sections of a THeaderControl, each of which can be used to control its own option, selection etc Create - constructor for THeaderSection: calls inherited Create then initialises state, visibility, alignment, size and Index TCollectionItem.Create Assign - if Source is of correct type, copies properties directly, otherwise calls inherited Assign which probably raises an exception TPersistent.Assign The position of the left boundary of the section The position of the right boundary of the section State - whether normal, hot (ie mouse hovers over it, ready to be selected) or pressed (selected) Alignment - whether text is to be left or right justified or centered Index of the image in the imagelist Maximum permissable width of a section Minimum permissable width of a section (default = 0) The text string that is to appear in the section The Width of the section that appears on the THeaderControl OriginalIndex - index which doesn't change when the user reorders the sections Update checks if update is in fact required, then calls inherited method TCollection.Update OnCreateSectionClass - event handler for creating a new section class ToolTips - whether Popup tool tips are to be shown Clear - the stringlist FindCaption- search for and return the list item that contains the nominated caption

FindCaption- search for and return the list item that contains the nominated caption

Starting from item with StartIndex

Looking for the string Value

Partial, Inclusive, Wrap, PartStart: Boolean arguments allowing matches with part of the string, permitting the string to wrap over a line, etc

 GetItemAt - find and return the list item at the specified coordinates GetControlClassDefaultSize returns its own defaults, overriding inherited values TControl.GetControlClassDefaultSize GetControlClassDefaultSize returns its own defaults, overriding inherited values TControl.GetControlClassDefaultSize GetControlClassDefaultSize - returns its own defaults, overriding the inherited values TControl.GetControlClassDefaultSize GetControlClassDefaultSize returns its own defaults, overriding inherited values TControl.GetControlClassDefaultSize GetOwner returns a HeaderControl, overriding inherited value TPersistent.GetOwner TSectionTrackState - enumerated type for tracking the state of a header section Checked - if True, a check mark is present beside the item, implying it has been selected The position of the Left side of the list item The ListView in which this Item is fould The coordinates of the position where the ListItem is located The position of the Top of this ListItem FindCaption - returns the ListItem with the specified caption at the given starting place. HideSelection - render the selected items invisible CalculatePreferredSize calls inherited method then supplies its own values if any are missing TControl.CalculatePreferredSize CreatePanel - returns a created Status Panel CreatePanels - returns a set of created panels GetPanelClass - returns a class of status panel DoSetApplicationHint - specifies a hint string and returns True if successful DoHint - shows the hint and returns True if successful (uses OnHint event handler) ExecuteAction: if required action is a Hint-related, sets the Hint in place, otherwise calls inherited method TComponent.ExecuteAction SizeGripEnabled - returns True if the size-grip (an area at the bottom of the statusbar where a mouse can grip to change the size) is enabled AutoHint - if True, a hint is automatically shown when mouse hovers over status bar. Default False SizeGrip - an area at the bottom of the statusbar where a mouse can grip to change the size: True if this is working Event handler for creating a StatusBar Panel class Client cannot be added to TPageControl itself but new TabSheet should be added and client placed onto it DoAddDockClient creates a new TabSheet in the PageControl, places the client on it and aligns it TWinControl.DoAddDockClient DoRemoveDockClient - frees the page which is being undocked TWinControl.DoRemoveDockClient PositionDockRect converts client coordinates to screen coordinates, then places the docking rectangle at the calculated position TControl.PositionDockRect DisplayRect - returns the coordinates of a rectangle for displaying the current item

DisplayRect - returns the coordinates of a rectangle for displaying the current item

Display codes can be: drBounds, drIcon, drLabel, drSelectBounds

DisplayRectSubItem - returns the coordinates of a display rectangle for a specified sub-item

DisplayRectSubItem - returns the coordinates of a display rectangle for a specified sub-item

Display codes can be: drBounds, drIcon, drLabel, drSelectBounds

WSCreateItems - instruction to the Widget Set to create Items FinalizeWnd stores the list origin then calls inherited method TWinControl.FinalizeWnd GetControlClassDefaultSize returns its own defaults, overriding inherited values TControl.GetControlClassDefaultSize GetButtonDrawDetail - find theme information for Windows XP inplementations GetControlClassDefaultSize - returns its own defaults, overriding the inherited values Control.GetControlClassDefaultSize FontChanged - method to cope with change in font ParentFontChanged - method for coping with change in parent font DefaultTreeViewSort - returns result of string comparison between names of Node1 and Node2

DefaultTreeViewSort - returns result of string comparison between names of Node1 and Node2

DefaultTreeViewSort compares the text of two TreeNodes and returns the following result:

< 0
if Node1.Text<Node2.Text.
0
if Node1.Text=Node2.Text.
> 0
if Node1.Text>Node2.Text.

The comparision takes into account Ansi characters, i.e. it takes care of strange accented characters. Contrary to AnsiCompareText, the comparision is case sensitive.

CreateSection - method for creating a header section CreateSections - method for creating a collection of header sections SectionClick - method for emulating the OnSectionClick event SectionResize - method for emulating the OnSectionResize event SectionTrack - method for emulating the OnSectionTrack event SectionSeparatorDblClick - method for emulating the OnSectionSeparatorDblClick event SectionEndDrag - method for emulating the OnSectionEndDrag event SectionDrag - method to emulate the OnSectionDrag event UpdateState - bring the state of the control up-to-date GetControlClassDefaultSize - returns its own defaults, overriding inherited values TControl.GetControlClassDefaultSize GetTextPath - returns a string containing the path to the current node delimited by slash Select Only This Node FindNodeWithText - returns a node containing the specified text string FindNodeWithData - returns a node containing the specified data pointer SortTopLevelNodes - sorts the top level nodes, using the specified comparison method Item - finds the node corresponding to the given index TStatusPanelClass - set of TStatusPanel TSBCreatePanelClassEvent - generic event handling procedure for creating a Status Bar panel class TCustomDrawResultFlag - enumerated type, a series of flags to signify the result of a drawing process TCustomDrawResult - set of TCustomDrawResultFlag TDisplayCode - enumerated type denoting how items are displayed GetCheckedInternal - returns True if item is internally checked BeginUpdate - start the update process EndUpdate - finish the update process IsCustomDrawn - returns True if a target has been custom drawn CustomDraw - performs custom drawing in the given rectangle, and returns True if successful CustomDrawItem - custom draws the specified item, and returns True if successful CustomDrawSubItem - custom draws the specified subitem, returning True if successful IntfCustomDraw - uses the interface to perform custom drawing and returns a result of drawing OnCustomDraw - event handler for custom drawing OnCustomDrawItem - event handler for custom drawing an item OnCustomDrawSubItem - event handler for custom drawing a subitem OnAdvancedCustomDraw - event handler for advanced custom drawing OnAdvancedCustomDrawItem - event handler for advanced custom drawing item OnAdvancedCustomDrawSubItem - event handler for advanced custom drawing subitem SelectOnlyThis - method for selecting only the indicated node TreeLinePenStyle - the pen style for drawing lines on the tree THeaderSectionState - enumerated type containing possible selection states for header Visible if True THeaderSectionClass - class of THeaderSection SectionFromOriginalIndex - the section as defined by the original (unchanged) index TLVCustomDrawEvent - generic event handler method for List View custom drawing TLVCustomDrawItemEvent - generic event handling method for List View item drawing TLVCustomDrawSubItemEvent - generic event handling method for List View subitem drawing TLVAdvancedCustomDrawEvent - generic event handling method for List View custom drawing TLVAdvancedCustomDrawSubItemEvent - generic event handling method for List View custom subitem drawing TListViewFlag - enumerated type (currently containing only one value) for List View flag TListViewFlags - set of TListViewFlag TOldTreeNodeInfo - record type (old version) for Tree Node information TCustomSectionTrackEvent - generic event handling method for custom tracking a header section TSectionDragEvent - generic event handling method for dragging a header section TCustomSectionNotifyEvent - generic event notification method for header section TCustomHCCreateSectionClassEvent - generic event handler method for custom creation of header control DrawPanel calls the OnDrawPanel event handler if assigned LMDrawItem - LCL message handler for drawing the item on the current canvas Show/Hide caption The ToolBar.ShowCaptions has precendence. Hiding will only work if ToolBar.List is true.