static public KeyValuePair <UInt32[], int> Raster32BitFromClientRectFromWindowMitHandleOverDesktop(this IntPtr hWnd, bool flagCaptureblt = false)
{
var desktopHWnd = BotEngine.WinApi.User32.GetDesktopWindow();
RECT clientRect;
User32.GetClientRect(hWnd, out clientRect);
var pointLeftTop = clientRect.LeftTop;
var pointRightBottom = clientRect.RightBottom;
User32.ClientToScreen(hWnd, ref pointLeftTop);
User32.ClientToScreen(hWnd, ref pointRightBottom);
var windowClientRect = RectInt.FromMinPointAndMaxPoint(pointLeftTop.AsVektor2DInt(), pointRightBottom.AsVektor2DInt());
var desktopRaster = BotEngine.Windows.Extension.Raster32BitVonClientRectVonWindowMitHandle(desktopHWnd, flagCaptureblt);
if (desktopRaster.Key == null)
{
return(default(KeyValuePair <UInt32[], int>));
}
var desktopRasterHeight = desktopRaster.Key.Length / desktopRaster.Value;
var destPixelCount = clientRect.Width * clientRect.Height;
var destRaster = new UInt32[destPixelCount];
for (int rowInDest = 0; rowInDest < clientRect.Height; rowInDest++)
{
var rowInDesktop = rowInDest + pointLeftTop.y;
if (rowInDesktop < 0 || desktopRasterHeight <= rowInDesktop)
{
continue;
}
var inRowOffsetPixelCount = Math.Max(0, -pointLeftTop.x);
var inRowPixelCount = Math.Min(desktopRaster.Value, pointRightBottom.x) - Math.Max(0, pointLeftTop.x);
Buffer.BlockCopy(
desktopRaster.Key,
(desktopRaster.Value * rowInDesktop + pointLeftTop.x + inRowOffsetPixelCount) * 4,
destRaster,
(clientRect.Width * rowInDest + inRowOffsetPixelCount) * 4,
inRowPixelCount * 4);
}
return(new KeyValuePair <uint[], int>(destRaster, clientRect.Width));
}