Screenshot und Skalierung

[tofse01]

Hallo,

ich verstehe nicht, was du meinst.
Ich habe das Handle von dem Programm, das ich als Screenshot benötige


Habe diese Code, mit GetWindowRect bekomme ich die Koordinaten, aber die passen nicht

Delphi-Quellcode:

procedure ScreenShot(hWindow: HWND; bm: TBitmap; te:TEdit);
var
  Left, Top, Width, Height: Word;
  R: TRect;
  dc: HDC;
  lpPal: PLOGPALETTE;
begin
  {Check if valid window handle}
  if not IsWindow(hWindow) then Exit;
  {Retrieves the rectangular coordinates of the specified window}
  GetWindowRect(hWindow, R);

  te.Text:='L: '+inttostr(R.Left)+' T: '+inttostr(R.Top)+' B: '+inttostr(R.Bottom)+' R:'+inttostr(R.Right)+' ';

  //R.Right:=round(R.Right*1.25);

  Left := R.Left;
  Top := R.Top;
  Width := R.Right - R.Left;
  Height := R.Bottom - R.Top;
  bm.Width  := Width;
  bm.Height := Height;
  {get the screen dc}
  dc := GetDc(0);
  if (dc = 0) then
  begin
    Exit;
  end;
  {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
    begin
      {create the palette}
      bm.Palette := CreatePalette(lpPal^);
    end;
    FreeMem(lpPal, SizeOf(TLOGPALETTE) +
    (255 * SizeOf(TPALETTEENTRY)));
  end;
  {copy from the screen to the bitmap}
  BitBlt(bm.Canvas.Handle,
    0,
    0,
    Width,
    Height,
    Dc,
    Left,
    Top,
    SRCCOPY);
  {release the screen dc}
  ReleaseDc(0, dc);
end;