⤷ Draw transparent text on canvas

Use Brush.Style for the Form.Canvas, if you want to set background color of text like a color of form. And use TextOut, if you want to draw text on the canvas.

procedure TForm1.Button1Click(Sender: TObject);
begin
  with Canvas do
  begin
    Brush.Style:=bsClear;
    TextOut(10, 10, 'Hello');
  end;
end;
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