How to draw transparent text on a bitmap

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How to draw transparent text on a bitmap (Views: 704)

Problem/Question/Abstract:

How to draw transparent text on a bitmap

Answer:

The following example demonstrates drawing transparent text on the canvas of a TBitmap:

procedure TForm1.Button1Click(Sender: TObject);
var
  OldBkMode: integer;
begin
  Image1.Picture.Bitmap.Canvas.Font.Color := clBlue;
  OldBkMode := SetBkMode(Image1.Picture.Bitmap.Canvas.Handle, TRANSPARENT);
  Image1.Picture.Bitmap.Canvas.TextOut(10, 10, 'Hello');
  SetBkMode(Image1.Picture.Bitmap.Canvas.Handle, OldBkMode);
end;

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