Mega Code Archive

 

Categories / Delphi / Graphic

 

Fast way to clear a given canvas

Title: Fast way to clear a given canvas Question: What is the fastest way to clear a given canvas? Answer: Use the Windows API function PatBlt(). Example: procedure TForm1.Button1Click(Sender: TObject); begin PatBlt(Form1.Canvas.Handle, 0, 0, Form1.ClientWidth, Form1.ClientHeight, WHITENESS); end;