Mega Code Archive
Transparent property to work for a coolbar background bitmap
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Question:
How can I get the transparent property to work for a background
bitmap assigned to a CoolBar component?
Answer:
procedure TForm1.Button1Click(Sender: TObject);
var
Bm1 : TBitmap;
Bm2 : TBitmap;
begin
Bm1 := TBitmap.Create;
Bm2 := TBitmap.Create;
Bm1.LoadFromFile('c:\download\test.bmp');
Bm2.Width := Bm1.Width;
Bm2.Height := Bm1.Height;
bm2.Canvas.Brush.Color := CoolBar1.Color;
bm2.Canvas.BrushCopy(Rect(0, 0, bm2.Width, bm2.Height),
Bm1,
Rect(0, 0, Bm1.width, Bm1.Height),
ClWhite);
bm1.Free;
CoolBar1.Bitmap.Assign(bm2);
bm2.Free;
end;
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