Delphi中RGB色环绘制代码

使用Delphi绘制RGB色环,代码如下:

procedure TForm1.FormPaint(Sender: TObject);
var
  X, Y, R: Integer;
begin
  for X := 0 to ClientWidth do
  begin
    R := (X * 255) div ClientWidth;
    for Y := 0 to ClientHeight do
      Canvas.Pixels[X, Y] := ColorToRGB(R, 255 - R, R);
  end;
end;
rar 文件大小:231.33KB