mirror of
https://gitlab.com/freepascal.org/lazarus/lazarus.git
synced 2025-08-28 09:20:46 +02:00
lcl:
- revert 33020 #928292514b, 33082 #dd109fba91, 33086 #bd7b46c17a, part of 33089 and 33389. These changes made the hint behavior Delphi incompatible thus leading to a regression in third party control like VirtualTreeView that handles hints in CMHintShow - Retrieve parent hint recursively if hintcontrol.hint is empty' (delphi compatible) - Added sample project to test hints git-svn-id: trunk@38802 -
This commit is contained in:
blikblum
parent
dde19a64cc
commit
40f8498835
5
.gitattributes
vendored
5
.gitattributes
vendored
@ -3926,6 +3926,11 @@ examples/componentstreaming/componentstreaming.lpi svneol=native#text/plain
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||||
examples/componentstreaming/componentstreaming.lpr svneol=native#text/plain
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examples/componentstreaming/mainunit.lfm svneol=native#text/plain
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examples/componentstreaming/mainunit.pas svneol=native#text/plain
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||||
examples/controlhint/Project1.lpi svneol=native#text/plain
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examples/controlhint/Project1.lpr svneol=native#text/plain
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examples/controlhint/Project1.res -text
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||||
examples/controlhint/Unit1.lfm svneol=native#text/plain
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examples/controlhint/Unit1.pas svneol=native#text/plain
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examples/cursors/car.cur -text svneol=unset#image/x-cursor
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examples/cursors/car.lrs svneol=native#text/pascal
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examples/cursors/project1.lpi svneol=native#text/plain
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96
examples/controlhint/Project1.lpi
Normal file
96
examples/controlhint/Project1.lpi
Normal file
@ -0,0 +1,96 @@
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<?xml version="1.0"?>
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<CONFIG>
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||||
<ProjectOptions>
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||||
<Version Value="9"/>
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||||
<PathDelim Value="\"/>
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||||
<General>
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||||
<Flags>
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||||
<MainUnitHasUsesSectionForAllUnits Value="False"/>
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||||
<MainUnitHasCreateFormStatements Value="False"/>
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||||
<MainUnitHasTitleStatement Value="False"/>
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||||
</Flags>
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||||
<SessionStorage Value="InProjectDir"/>
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||||
<MainUnit Value="0"/>
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||||
<Title Value="Project1"/>
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<UseAppBundle Value="False"/>
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||||
<ResourceType Value="res"/>
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||||
<UseXPManifest Value="True"/>
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||||
</General>
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||||
<i18n>
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||||
<EnableI18N LFM="False"/>
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||||
</i18n>
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||||
<VersionInfo>
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||||
<StringTable ProductVersion=""/>
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||||
</VersionInfo>
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||||
<BuildModes Count="1">
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||||
<Item1 Name="Default" Default="True"/>
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||||
</BuildModes>
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||||
<PublishOptions>
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||||
<Version Value="2"/>
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||||
<IncludeFileFilter Value="*.(pas|pp|inc|lfm|lpr|lrs|lpi|lpk|sh|xml)"/>
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||||
<ExcludeFileFilter Value="*.(bak|ppu|o|so);*~;backup"/>
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||||
</PublishOptions>
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||||
<RunParams>
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||||
<local>
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||||
<FormatVersion Value="1"/>
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||||
</local>
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||||
</RunParams>
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||||
<RequiredPackages Count="1">
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||||
<Item1>
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||||
<PackageName Value="LCL"/>
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</Item1>
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</RequiredPackages>
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||||
<Units Count="2">
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<Unit0>
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<Filename Value="Project1.lpr"/>
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<IsPartOfProject Value="True"/>
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</Unit0>
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<Unit1>
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<Filename Value="Unit1.pas"/>
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<IsPartOfProject Value="True"/>
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<ComponentName Value="Form1"/>
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<HasResources Value="True"/>
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<ResourceBaseClass Value="Form"/>
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<UnitName Value="Unit1"/>
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</Unit1>
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</Units>
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</ProjectOptions>
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||||
<CompilerOptions>
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||||
<Version Value="11"/>
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||||
<PathDelim Value="\"/>
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||||
<SearchPaths>
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||||
<IncludeFiles Value="$(ProjOutDir)"/>
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</SearchPaths>
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<Parsing>
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||||
<SyntaxOptions>
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<SyntaxMode Value="Delphi"/>
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</SyntaxOptions>
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</Parsing>
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||||
<Linking>
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||||
<Options>
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||||
<Win32>
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||||
<GraphicApplication Value="True"/>
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||||
</Win32>
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||||
</Options>
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||||
</Linking>
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||||
<Other>
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||||
<CompilerMessages>
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||||
<MsgFileName Value=""/>
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||||
</CompilerMessages>
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||||
<CompilerPath Value="$(CompPath)"/>
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</Other>
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||||
</CompilerOptions>
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||||
<Debugging>
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<Exceptions Count="3">
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<Item1>
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||||
<Name Value="EAbort"/>
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</Item1>
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<Item2>
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<Name Value="ECodetoolError"/>
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</Item2>
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<Item3>
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<Name Value="EFOpenError"/>
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</Item3>
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</Exceptions>
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</Debugging>
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</CONFIG>
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15
examples/controlhint/Project1.lpr
Normal file
15
examples/controlhint/Project1.lpr
Normal file
@ -0,0 +1,15 @@
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program Project1;
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{$MODE Delphi}
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uses
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Forms, Interfaces,
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Unit1 in 'Unit1.pas' {Form1};
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{$R *.res}
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begin
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Application.Initialize;
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Application.CreateForm(TForm1, Form1);
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Application.Run;
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end.
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BIN
examples/controlhint/Project1.res
Normal file
BIN
examples/controlhint/Project1.res
Normal file
Binary file not shown.
164
examples/controlhint/Unit1.lfm
Normal file
164
examples/controlhint/Unit1.lfm
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@ -0,0 +1,164 @@
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object Form1: TForm1
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Left = 285
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Height = 666
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Hint = 'Form'
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Top = 111
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Width = 870
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Caption = 'Test Control Hint'
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ClientHeight = 666
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ClientWidth = 870
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Color = clBtnFace
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Font.Color = clWindowText
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Font.Height = -11
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Font.Name = 'MS Sans Serif'
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OnCreate = FormCreate
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LCLVersion = '1.1'
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object ListBox1: TListBox
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Left = 472
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Height = 569
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Top = 8
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Width = 353
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ItemHeight = 0
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TabOrder = 0
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end
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object ButtonClear: TButton
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Left = 752
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Height = 25
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Top = 584
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Width = 75
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Caption = 'Clear'
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OnClick = ButtonClearClick
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TabOrder = 1
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end
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object GroupBoxNoShowHint: TGroupBox
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Left = 8
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Height = 177
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Hint = 'GroupBox'
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Top = 192
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Width = 449
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Caption = 'ShowHint = False'
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ClientHeight = 159
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ClientWidth = 445
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TabOrder = 2
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object ButtonShowHintNoParent1: TButton
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Left = 14
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Height = 25
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Hint = 'Button'
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Top = 26
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Width = 209
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Caption = 'ShowHint = True Parent = False'
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ParentShowHint = False
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ShowHint = True
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TabOrder = 0
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end
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object Button1: TButton
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Left = 14
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Height = 25
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Hint = 'Button'
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Top = 74
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Width = 209
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Caption = 'ShowHint = False Parent = False'
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ParentShowHint = False
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TabOrder = 1
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end
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object Button2: TButton
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Left = 230
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Height = 25
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Top = 26
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Width = 209
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Caption = 'ShowHint = True Parent = True'
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Enabled = False
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TabOrder = 2
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end
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object ButtonNoShowHintShowParent: TButton
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Left = 230
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Height = 25
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Hint = 'Button'
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Top = 74
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Width = 209
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Caption = 'ShowHint = False Parent = True'
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TabOrder = 3
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end
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object Button8: TButton
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Left = 78
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Height = 25
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Top = 115
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Width = 296
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Caption = 'ShowHint = True Parent = False / Hint = '''''
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ParentShowHint = False
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ShowHint = True
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TabOrder = 4
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end
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end
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object GroupBoxShowHint: TGroupBox
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Left = 8
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Height = 217
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Hint = 'GroupBox'
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Top = 392
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Width = 449
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Caption = 'ShowHint = True'
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ClientHeight = 199
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ClientWidth = 445
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ParentShowHint = False
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ShowHint = True
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TabOrder = 3
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object Button3: TButton
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Left = 14
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Height = 25
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Hint = 'Button'
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Top = 26
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Width = 209
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Caption = 'ShowHint = True Parent = False'
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ParentShowHint = False
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ShowHint = True
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TabOrder = 0
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end
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object Button4: TButton
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Left = 14
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Height = 25
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Hint = 'Button'
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Top = 74
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Width = 209
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Caption = 'ShowHint = False Parent = False'
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ParentShowHint = False
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TabOrder = 1
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end
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object Button5: TButton
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Left = 230
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Height = 25
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Hint = 'Button'
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Top = 26
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Width = 209
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Caption = 'ShowHint = True Parent = True'
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TabOrder = 2
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end
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object Button6: TButton
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Left = 230
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Height = 25
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Hint = 'Button'
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Top = 74
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Width = 209
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Caption = 'ShowHint = False Parent = True'
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Enabled = False
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ParentShowHint = False
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TabOrder = 3
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end
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object Button7: TButton
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Left = 78
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Height = 25
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Top = 123
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Width = 296
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Caption = 'ShowHint = True Parent = True / Hint = '''''
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TabOrder = 4
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end
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end
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object CheckBox1: TCheckBox
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Left = 8
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Height = 19
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Top = 160
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Width = 146
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Caption = 'GroupBox With Empty Hint'
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OnChange = CheckBox1Change
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TabOrder = 4
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end
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end
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221
examples/controlhint/Unit1.pas
Normal file
221
examples/controlhint/Unit1.pas
Normal file
@ -0,0 +1,221 @@
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unit Unit1;
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{$MODE Delphi}
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interface
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uses
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LCLIntf, LCLType, LMessages, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
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Dialogs, StdCtrls;
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type
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TOnHintEvent = procedure(Sender: TObject; HintInfo: PHintInfo) of object;
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TMyHintControl = class (TCustomControl)
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private
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FBlueRect, FRedRect, FWhiteRect, FYellowRect: TRect;
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FOnHintEvent: TOnHintEvent;
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FShowOnlyRed: Boolean;
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procedure CMHintShow(var Message: TMessage); message CM_HINTSHOW;
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procedure SetOnHintEvent(const Value: TOnHintEvent);
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procedure SetShowOnlyRed(const Value: Boolean);
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protected
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procedure Resize; override;
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public
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constructor Create(TheOwner: TComponent); override;
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procedure Paint; override;
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property ShowOnlyRed: Boolean read FShowOnlyRed write SetShowOnlyRed;
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property OnHintEvent: TOnHintEvent read FOnHintEvent write SetOnHintEvent;
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end;
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TMyHintButton = class (TButton)
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private
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procedure CMHintShow(var Message: TMessage); message CM_HINTSHOW;
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protected
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public
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end;
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{ TForm1 }
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TForm1 = class(TForm)
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Button7: TButton;
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Button8: TButton;
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CheckBox1: TCheckBox;
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ListBox1: TListBox;
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ButtonClear: TButton;
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GroupBoxNoShowHint: TGroupBox;
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ButtonShowHintNoParent1: TButton;
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Button1: TButton;
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Button2: TButton;
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ButtonNoShowHintShowParent: TButton;
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GroupBoxShowHint: TGroupBox;
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Button3: TButton;
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Button4: TButton;
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Button5: TButton;
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Button6: TButton;
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procedure CheckBox1Change(Sender: TObject);
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procedure FormCreate(Sender: TObject);
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procedure ButtonClearClick(Sender: TObject);
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private
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{ Private declarations }
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FMyHintControl,FMyHintControl2 : TMyHintControl;
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FMyHintButton: TMyHintButton;
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procedure HintEvent(Sender: TObject; HintInfo: PHintInfo);
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public
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{ Public declarations }
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end;
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var
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Form1: TForm1;
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implementation
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{$R *.lfm}
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{ TMyHintControl }
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procedure TMyHintControl.CMHintShow(var Message: TMessage);
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begin
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with TCMHintShow(Message), HintInfo^ do
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begin
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if Assigned(FOnHintEvent) then
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FOnHintEvent(Self, HintInfo);
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Result := 1;
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if PtInRect(FRedRect, CursorPos) then
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begin
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Result := 0;
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HintStr := 'Red' + #13#10 + 'aaaaa_bbbbb_ccccc_dddddd_eeeeee';
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CursorRect := FRedRect;
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end;
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if FShowOnlyRed then
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Exit;
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if PtInRect(FBlueRect, CursorPos) then
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begin
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Result := 0;
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HintStr := 'Blue';
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CursorRect := FBlueRect;
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end;
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if PtInRect(FYellowRect, CursorPos) then
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begin
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Result := 0;
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HintStr := 'Yellow';
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CursorRect := FYellowRect;
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end;
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if PtInRect(FWhiteRect, CursorPos) then
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begin
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Result := 0;
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HintStr := 'White';
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CursorRect := FWhiteRect;
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end;
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end;
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end;
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||||
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constructor TMyHintControl.Create(TheOwner: TComponent);
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begin
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inherited;
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Hint := 'Control Hint';
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ShowHint := True;
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end;
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procedure TMyHintControl.Paint;
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begin
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with Canvas do
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begin
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Brush.Color := clRed;
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FillRect(FRedRect);
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Brush.Color := clWhite;
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FillRect(FWhiteRect);
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Brush.Color := clBlue;
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FillRect(FBlueRect);
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Brush.Color := clYellow;
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FillRect(FYellowRect);
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end;
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end;
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procedure TMyHintButton.CMHintShow(var Message: TMessage);
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begin
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TCMHintShow(Message).HintInfo^.HintStr := 'CMHintShow';
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end;
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procedure TForm1.FormCreate(Sender: TObject);
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begin
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FMyHintControl := TMyHintControl.Create(Self);
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with FMyHintControl do
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||||
begin
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||||
ShowOnlyRed := True;
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||||
OnHintEvent := HintEvent;
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||||
Parent := Self;
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||||
SetBounds(10, 10, 100, 100);
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||||
Visible := True;
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||||
end;
|
||||
FMyHintControl2 := TMyHintControl.Create(Self);
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||||
with FMyHintControl2 do
|
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begin
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||||
OnHintEvent := HintEvent;
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||||
Parent := Self;
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||||
SetBounds(120, 10, 100, 100);
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||||
Visible := True;
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||||
end;
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||||
FMyHintButton := TMyHintButton.Create(Self);
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||||
FMyHintButton.Parent := GroupBoxShowHint;
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||||
FMyHintButton.Left := Button7.Left;
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||||
FMyHintButton.Width := Button7.Width;
|
||||
FMyHintButton.Top := Button7.Top + 36;
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FMyHintButton.ParentShowHint := True;
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FMyHintButton.ShowHint := True;
|
||||
FMyHintButton.Caption := 'ShowHint = True Parent = True / Hint = '''' / CMHintShow';
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end;
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||||
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||||
procedure TForm1.CheckBox1Change(Sender: TObject);
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||||
begin
|
||||
if CheckBox1.Checked then
|
||||
begin
|
||||
GroupBoxNoShowHint.Hint := '';
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||||
GroupBoxShowHint.Hint := '';
|
||||
end
|
||||
else
|
||||
begin
|
||||
GroupBoxNoShowHint.Hint := 'GroupBox';
|
||||
GroupBoxShowHint.Hint := 'GroupBox';
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure TMyHintControl.Resize;
|
||||
begin
|
||||
inherited;
|
||||
FRedRect := Rect(0, 0, Width div 2, Height div 2);
|
||||
FWhiteRect := Rect(Width div 2, 0, Width, Height div 2);
|
||||
FBlueRect := Rect(0, Height div 2, Width div 2, Height);
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||||
FYellowRect := Rect(Width div 2, Height div 2, Width, Height);
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||||
end;
|
||||
|
||||
procedure TMyHintControl.SetOnHintEvent(const Value: TOnHintEvent);
|
||||
begin
|
||||
FOnHintEvent := Value;
|
||||
end;
|
||||
|
||||
procedure TForm1.HintEvent(Sender: TObject; HintInfo: PHintInfo);
|
||||
begin
|
||||
with HintInfo^ do
|
||||
begin
|
||||
ListBox1.Items.Add(Format('CursorPoint X: %d Y: %d', [CursorPos.X, CursorPos.Y]));
|
||||
ListBox1.Items.Add(Format('CursorRect L: %d T: %d R: %d B: %d',
|
||||
[CursorRect.Left, CursorRect.Top, CursorRect.Right, CursorRect.Bottom]));
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure TForm1.ButtonClearClick(Sender: TObject);
|
||||
begin
|
||||
ListBox1.Clear;
|
||||
end;
|
||||
|
||||
procedure TMyHintControl.SetShowOnlyRed(const Value: Boolean);
|
||||
begin
|
||||
FShowOnlyRed := Value;
|
||||
end;
|
||||
|
||||
end.
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||||
|
||||
@ -1499,7 +1499,6 @@ type
|
||||
function IsEnabled: Boolean; // checks parent too
|
||||
function IsParentColor: Boolean; // checks protected ParentColor, needed by widgetsets
|
||||
function IsParentFont: Boolean; // checks protected ParentFont, needed by widgetsets
|
||||
function IsParentShowHint: Boolean; // checks protected ParentShowHint prop.
|
||||
function FormIsUpdating: boolean; virtual;
|
||||
function IsProcessingPaintMsg: boolean;
|
||||
procedure Hide;
|
||||
|
||||
@ -36,28 +36,22 @@ begin
|
||||
//debugln('FindApplicationComponent ComponentName="',ComponentName,'" Result=',DbgSName(Result));
|
||||
end;
|
||||
|
||||
function GetHintControl(Control: TControl): TControl;
|
||||
// Returns control that provides hint text for the specified Control, or nil if no hint.
|
||||
// If Hint='' and ParentShowHint=True, hint text comes from the closest parent that has it.
|
||||
function GetControlShortHint(Control: TControl): String;
|
||||
begin
|
||||
// The control or one of its parents must have ShowHint=True.
|
||||
Result := Control;
|
||||
while (Result <> nil) and not Result.ShowHint do begin
|
||||
if not Result.IsParentShowHint then // No ShowHint nor ParentShowHint.
|
||||
exit(nil);
|
||||
Result := Result.Parent; // A level up in parent tree.
|
||||
Result := '';
|
||||
while (Control <> nil) and (Result = '') do
|
||||
begin
|
||||
Result := GetShortHint(Control.Hint);
|
||||
Control := Control.Parent;
|
||||
end;
|
||||
if (Result = nil) then // None of parents has ShowHint=True
|
||||
exit;
|
||||
end;
|
||||
|
||||
// Find control that actually provides the hint = first parent with a hint text.
|
||||
function GetHintControl(Control: TControl): TControl;
|
||||
begin
|
||||
Result := Control;
|
||||
while (Result <> nil) and (Result.Hint = '') and (Result.OnShowHint = nil)
|
||||
and (Result.ShowHint or Result.IsParentShowHint) do
|
||||
while (Result <> nil) and (not Result.ShowHint) do
|
||||
Result := Result.Parent;
|
||||
|
||||
// Show hint only when program is running in normal state
|
||||
if (Result <> nil) and
|
||||
if (Result <> nil)and
|
||||
([csDesigning, csDestroying, csLoading] * Result.ComponentState <> []) then
|
||||
Result := nil;
|
||||
end;
|
||||
@ -814,7 +808,7 @@ begin
|
||||
OffsetRect(HintInfo.CursorRect, ParentOrigin.X - ClientOrigin.X,
|
||||
ParentOrigin.Y - ClientOrigin.Y);
|
||||
HintInfo.CursorPos := FHintControl.ScreenToClient(Info.MousePos);
|
||||
HintInfo.HintStr := GetShortHint(Info.Control.Hint);
|
||||
HintInfo.HintStr := GetControlShortHint(Info.Control);
|
||||
HintInfo.ReshowTimeout := 0;
|
||||
HintInfo.HideTimeout := FHintHidePause
|
||||
+FHintHidePausePerChar*length(HintInfo.HintStr);
|
||||
|
||||
@ -1001,22 +1001,6 @@ begin
|
||||
Result := FParentFont;
|
||||
end;
|
||||
|
||||
{------------------------------------------------------------------------------
|
||||
Method: TControl.IsParentShowHint
|
||||
Params: none
|
||||
Returns: Boolean
|
||||
|
||||
Used at places where we need to check ParentShowHint from TControl.
|
||||
Property is protected, so this function avoids hacking to get
|
||||
protected property value.
|
||||
Example of usage is GetHintControl()
|
||||
from application.inc (issue #20518) .
|
||||
------------------------------------------------------------------------------}
|
||||
function TControl.IsParentShowHint: Boolean;
|
||||
begin
|
||||
Result := FParentShowHint;
|
||||
end;
|
||||
|
||||
function TControl.FormIsUpdating: boolean;
|
||||
begin
|
||||
Result := Assigned(Parent) and Parent.FormIsUpdating;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user