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Wednesday, April 20, 2011

Draw on the title bar

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unit Unit1;

interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs;

type
TForm1 = class(TForm)
private
procedure WMNCPaint(var Msg: TWMNCPaint); message WM_NCPAINT;
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.WMNCPaint(var Msg: TWMNCPaint);

var
ACanvas : TCanvas;
begin
inherited;
ACanvas := TCanvas.Create;
try
ACanvas.Handle := GetWindowDC(Form1.Handle);
with ACanvas do begin
Brush.Color := clActiveCaption;
Font.Name := 'Tahoma';
Font.Size := 8;
Font.Color := clYellow;
Font.Style := [fsItalic, fsBold];
TextOut(GetSystemMetrics(SM_CYMENU) + GetSystemMetrics(SM_CXBORDER),
Round((GetSystemMetrics(SM_CYCAPTION) - Abs(Font.Height))/2) + 1,
' Teks pada Caption');
end;
finally
ReleaseDC(Form1.Handle, ACanvas.Handle);
ACanvas.Free;
end;
end;

end.

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