ScreenShot-Programm zu groß

[toms]

Delphi-Quellcode:

procedure ScreenShot(x: Integer;
  y: Integer; //(x, y) = Left-top coordinate
  Width: Integer;
  Height: Integer; //(Width-Height) = Bottom-Right coordinate
  bm: TBitMap); //Destination
var
  dc: HDC;
  lpPal: PLOGPALETTE;
begin
  {test width and height}
  if ((Width = 0) or
    (Height = 0)) then
    Exit;
  bm.Width  := Width;
  bm.Height := Height;
  {get the screen dc}
  dc := GetDc(0);
  if (dc = 0) then
    Exit;
  {do we have a palette device?}
  if (GetDeviceCaps(dc, RASTERCAPS) and
    RC_PALETTE = RC_PALETTE) then
  begin
    {allocate memory for a logical palette}
    GetMem(lpPal,
      SizeOf(TLOGPALETTE) +
    (255 * SizeOf(TPALETTEENTRY)));
    {zero it out to be neat}
    FillChar(lpPal^,
      SizeOf(TLOGPALETTE) +
    (255 * SizeOf(TPALETTEENTRY)),
      #0);
    {fill in the palette version}
    lpPal^.palVersion := $300;
    {grab the system palette entries}
    lpPal^.palNumEntries :=
      GetSystemPaletteEntries(dc,
      0,
      256,
      lpPal^.palPalEntry);
    if (lpPal^.PalNumEntries <> 0) then
      {create the palette}
      bm.Palette := CreatePalette(lpPal^);
    FreeMem(lpPal, SizeOf(TLOGPALETTE) +
    (255 * SizeOf(TPALETTEENTRY)));
  end;
  {copy from the screen to the bitmap}
  BitBlt(bm.Canvas.Handle,
    0,
    0,
    Width,
    Height,
    Dc,
    x,
    y,
    SRCCOPY);
  {release the screen dc}
  ReleaseDc(0, dc);
end;