Search results for 'TPicture'. 1 post(s) found.
Here's how to chane the bitmap on the Windows Start Button:
{We'll need several global variables}
var
Form1: TForm1;
StartButton : hWnd;
OldBitmap : THandle;
NewImage : TPicture;
...
{Now, we put this code in the
OnCreate event of the form:}
procedure TForm1.FormCreate(Sender: TObject) ;
begin
NewImage:=TPicture.create;
NewImage.LoadFromFile('C:\Windows\Circles.BMP') ;
StartButton := FindWindowEx
(FindWindow(
'Shell_TrayWnd', nil),
0,'Button', nil) ;
OldBitmap:=SendMessage(StartButton,
BM_SetImage, 0,
NewImage.Bitmap.Handle) ;
end;
...
{And this other in the OnDestroy:}
procedure TForm1.FormDestroy(Sender: TObject) ;
begin
SendMessage(StartButton,BM_SetImage,0,OldBitmap) ;
NewImage.Free;
end;
var
Form1: TForm1;
StartButton : hWnd;
OldBitmap : THandle;
NewImage : TPicture;
...
{Now, we put this code in the
OnCreate event of the form:}
procedure TForm1.FormCreate(Sender: TObject) ;
begin
NewImage:=TPicture.create;
NewImage.LoadFromFile('C:\Windows\Circles.BMP') ;
StartButton := FindWindowEx
(FindWindow(
'Shell_TrayWnd', nil),
0,'Button', nil) ;
OldBitmap:=SendMessage(StartButton,
BM_SetImage, 0,
NewImage.Bitmap.Handle) ;
end;
...
{And this other in the OnDestroy:}
procedure TForm1.FormDestroy(Sender: TObject) ;
begin
SendMessage(StartButton,BM_SetImage,0,OldBitmap) ;
NewImage.Free;
end;
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