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Docs: LCL/comctrls. Adds TTabControl.Canvas topic for changes in 45519ddb. Issue #22780.

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* Removes extraneous whitespace characters in various topics.
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dsiders 2023-05-15 15:32:53 +01:00
parent 5f13c97542
commit e2f724b683
1 changed files with 46 additions and 5 deletions
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docs/xml/lcl/comctrls.xml
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@ -7813,6 +7813,47 @@ Indicates if there are unfinished updates for one of the Tabs on the control.
<short/>
</element>
<element name="TTabControl.Canvas">
<short>
Provides access to the Canvas where the control is drawn.
</short>
<descr>
<p>
<var>Canvas</var> is a read-only <var>TCanvas</var> property in
<var>TTabControl</var>. It is introduced as a public property, so it can be
accessed at run-time in program code. It is a platform property, and is
available on the Windows platform only in the current LCL release. It
provides code compatibility with the tab control in the Delphi VCL.
</p>
<p>
At run-time, a TControlCanvas instance is created and assigned to the property
member in the Create constructor.
</p>
<p>
Canvas is used in the Paint method to perform drawing operations which render
the control. The handle for the Canvas may be temporarily updated in the
PaintWindow method to use a specified device context. In this case, the canvas
handle is reset to an unassigned value after the Paint method is called to
render the control.
</p>
<p>
Use Canvas to access text metrics using the font for the canvas, or to perform
custom drawing operations on the control.
</p>
</descr>
<version>
Added in LCL version 2.4.0 for the Windows platform.
</version>
<seealso>
<link id="TTabControl.Paint"/>
<link id="TTabControl.PaintWindow"/>
<link id="TTabControl.Font"/>
<link id="TTabControl.Create"/>
<link id="#lcl.controls.TControlCanvas">TControlCanvas</link>
<link id="#lcl.graphics.TCanvas">TCanvas</link>
</seealso>
</element>
<element name="TTabControl.DisplayRect">
<short>Display area for the tab control.</short>
<descr>
@ -18787,11 +18828,11 @@ The up/down button is aligned on the bottom edge of a TUpDown control.
<element name="TUDOrientation">
<short>
Indicates the orientation for the arrows on a TUpDOwn control.
Indicates the orientation for the arrows on a TUpDown control.
</short>
<descr>
<p>
<var>TUDOrientation</var> is an enumerated type with values that control the
<var>TUDOrientation</var> is an enumerated type with values that control the
orientation of the button arrows drawn on a TUpDown control. Values in
TUDOrientation can be assigned to the Orientation property in TUpDown.
</p>
@ -21687,7 +21728,7 @@ release it.
</p>
<p>
Changing the value for the property causes the control to be redrawn. It may
also affect adjacent buttons on the tool bar with their Grouped properties
also affect adjacent buttons on the tool bar with their Grouped properties
enabled. When Down is enabled for a Grouped button, the other buttons in the
group are updated to set their Down states to <b>False</b>.
</p>
@ -24539,7 +24580,7 @@ the band.
<p>
<var>ParentBitmap</var> is a <var>Boolean</var> property which allows the
Bitmap assigned to the parent control (TCoolBar) to be used as the background
image for the band. The default value for the property is <b>True</b>, and
image for the band. The default value for the property is <b>True</b>, and
enables use of the Bitmap assigned to the parent control.
</p>
<p>
@ -36511,7 +36552,7 @@ is represented by leading Tab (#9) characters to denote the Level for the tree
node, followed by the Text for the node and an end-of-line sequence (#13#10).
</p>
<remark>
SaveToStream does <b>not</b> change the position in Stream prior to writing
SaveToStream does <b>not</b> change the position in Stream prior to writing
node values. It assumes the stream position has been set in the calling
routine. It does <b>not</b> reset the stream position when the method has been
completed.