Article #15627: Making text background transparent

 Question and Answer Database
FAQ627D.txt Making text background transparent
Category :Windows API
Platform :All
Product :All 32 bit
Question:
How do I make the text background transparent?
Answer:
Use the Windows API function SetBkMode().
Example:
procedure TForm1.Button1Click(Sender: TObject);
var
OldBkMode : integer;
begin
with Form1.Canvas do begin
Brush.Color := clRed;
FillRect(Rect(0, 0, 100, 100));
Brush.Color := clBlue;
TextOut(10, 20, 'Not Transparent!');
OldBkMode := SetBkMode(Handle, TRANSPARENT);
TextOut(10, 50, 'Transparent!');
SetBkMode(Handle, OldBkMode);
end;
end;
7/16/98 4:31:28 PM

Last Modified: 01-SEP-99