Add GUI polymorphic example project
This commit is contained in:
Timothy Warren
parent
1c31e8b8c4
commit
53d00c25b1
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object MainForm: TMainForm
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Left = 417
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Height = 240
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Top = 298
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Width = 320
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Caption = 'MainForm'
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ClientHeight = 240
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ClientWidth = 320
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OnCreate = FormCreate
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LCLVersion = '2.0.12.0'
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object rgPeople: TRadioGroup
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Left = 16
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Height = 185
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Top = 16
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Width = 281
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AutoFill = True
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Caption = 'Chose a TPerson Instance'
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ChildSizing.LeftRightSpacing = 6
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ChildSizing.EnlargeHorizontal = crsHomogenousChildResize
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ChildSizing.EnlargeVertical = crsHomogenousChildResize
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ChildSizing.ShrinkHorizontal = crsScaleChilds
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ChildSizing.ShrinkVertical = crsScaleChilds
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ChildSizing.Layout = cclLeftToRightThenTopToBottom
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ChildSizing.ControlsPerLine = 1
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ClientHeight = 166
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ClientWidth = 271
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Items.Strings = (
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'David Beckham'
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'William Shakespeare'
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'Mae West'
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'Blaise Pascal'
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)
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OnClick = rgPeopleClick
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TabOrder = 0
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end
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end
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unit person;
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{$mode objfpc}{$H+}
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interface
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uses Dialogs;
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type
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TPerson = class
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procedure Speak; virtual; abstract;
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end;
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{TBeckham}
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TBeckham = class(TPerson)
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procedure Speak; override;
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end;
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{TShakespeare}
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TShakespeare = class(TPerson)
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procedure Speak; override;
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end;
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{TWest}
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TWest = class(TPerson)
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procedure Speak; override;
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end;
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{TBlaise}
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TBlaise = class(TPerson)
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procedure Speak; override;
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end;
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implementation
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{TBlaise}
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procedure TBlaise.Speak;
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begin
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ShowMessage('Le coeur a ses raisons que la raison ne connait point');
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end;
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{TWest}
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procedure TWest.Speak;
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begin
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ShowMessage('I used to be Snow White... but I drifted');
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end;
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{TShakespeare}
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procedure TShakespeare.Speak;
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begin
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ShowMessage('The robbed that smiles steals something from the thief');
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end;
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{TBeckham}
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procedure TBeckham.Speak;
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begin
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ShowMessage('I''ve got more clothes than Victoria!');
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end;
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end.
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Binary file not shown.
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After Width: | Height: | Size: 134 KiB |
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<?xml version="1.0" encoding="UTF-8"?>
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<CONFIG>
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<ProjectOptions>
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<Version Value="11"/>
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<General>
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<SessionStorage Value="InProjectDir"/>
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<MainUnit Value="0"/>
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<Title Value="polymorphic"/>
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<Scaled Value="True"/>
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<ResourceType Value="res"/>
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<UseXPManifest Value="True"/>
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<XPManifest>
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<DpiAware Value="True"/>
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</XPManifest>
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<Icon Value="0"/>
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</General>
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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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<UseFileFilters Value="True"/>
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</PublishOptions>
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<RunParams>
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<FormatVersion Value="2"/>
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<Modes Count="0"/>
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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="3">
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<Unit0>
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<Filename Value="polymorphic.lpr"/>
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<IsPartOfProject Value="True"/>
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</Unit0>
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<Unit1>
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<Filename Value="unitmain.pas"/>
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<IsPartOfProject Value="True"/>
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<ComponentName Value="MainForm"/>
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<HasResources Value="True"/>
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<ResourceBaseClass Value="Form"/>
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</Unit1>
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<Unit2>
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<Filename Value="person.pas"/>
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<IsPartOfProject Value="True"/>
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</Unit2>
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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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<Target>
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<Filename Value="polymorphic"/>
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</Target>
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<SearchPaths>
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<IncludeFiles Value="$(ProjOutDir)"/>
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<UnitOutputDirectory Value="lib/$(TargetCPU)-$(TargetOS)"/>
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</SearchPaths>
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<Linking>
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<Debugging>
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<DebugInfoType Value="dsDwarf2Set"/>
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</Debugging>
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<Options>
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<Win32>
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<GraphicApplication Value="True"/>
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</Win32>
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</Options>
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</Linking>
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</CompilerOptions>
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<Debugging>
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<Exceptions Count="3">
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<Item1>
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<Name Value="EAbort"/>
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</Item1>
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<Item2>
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<Name Value="ECodetoolError"/>
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</Item2>
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<Item3>
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<Name Value="EFOpenError"/>
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</Item3>
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</Exceptions>
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</Debugging>
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</CONFIG>
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program polymorphic;
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{$mode objfpc}{$H+}
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uses
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{$IFDEF UNIX}{$IFDEF UseCThreads}
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cthreads,
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{$ENDIF}{$ENDIF}
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Interfaces, // this includes the LCL widgetset
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Forms, unitmain, person
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{ you can add units after this };
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{$R *.res}
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begin
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RequireDerivedFormResource:=True;
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Application.Scaled:=True;
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Application.Initialize;
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Application.CreateForm(TMainForm, Form1);
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Application.Run;
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end.
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@ -0,0 +1,51 @@
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unit unitmain;
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{$mode objfpc}{$H+}
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interface
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uses
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Classes, SysUtils, Forms, Controls, Graphics, Dialogs, ExtCtrls, person;
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type
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{ TMainform }
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TMainform = class(TForm)
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rgPeople: TRadioGroup;
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procedure FormCreate(Sender: TObject);
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procedure rgPeopleClick(Sender: TObject);
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end;
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var
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Form1: TMainform;
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implementation
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{$R mainform.lfm}
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{ TMainform }
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procedure TMainform.FormCreate(Sender: TObject);
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begin
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end;
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procedure TMainform.rgPeopleClick(Sender: TObject);
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var p: TPerson;
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begin
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if rgPeople.ItemIndex < 0 then Exit;
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// Select the appropriate Person
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case rgPeople.ItemIndex of
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0: p := TBeckham.Create;
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1: p := TShakespeare.Create;
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2: p := TWest.Create;
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3: p := TBlaise.Create;
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end;
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p.Speak;
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p.Free;
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end;
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end.
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