Mega Code Archive
How take a screen shot and save it to a bitmap
<![CDATA[
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
var
DeskTopCanvas: TCanvas;
DeskTopRect: TRect;
Bitmap: TBitmap;
begin
DeskTopCanvas := TCanvas.Create;
DeskTopCanvas.Handle := GetDC(0);
DeskTopRect := Rect(0,0,Screen.Width,Screen.Height);
Bitmap := TBitmap.Create;
with Bitmap do
begin
Width := Screen.Width;
Height:= Screen.Height;
PixelFormat := pfDevice;
end;
Bitmap.Canvas.CopyRect(DeskTopRect,DeskTopCanvas,DeskTopRect);
Bitmap.SaveToFile ('c:\desktop.bmp');
Bitmap.Free;
DesktopCanvas.Free;
ReleaseDC(GetDeskTopWindow,GetDC(0));
end;
end.
]]>