private static Bitmap CaptureScreenRegion(Rectangle crop)
{
Rectangle totalSize = Rectangle.Empty;
foreach (Screen s in Screen.AllScreens)
{
totalSize = Rectangle.Union(totalSize, s.Bounds);
}
IntPtr hSrc = WindowsApi.CreateDC("DISPLAY", null, null, 0);
IntPtr hDest = WindowsApi.CreateCompatibleDC(hSrc);
IntPtr hBmp = WindowsApi.CreateCompatibleBitmap(hSrc,
crop.Right -
crop.Left,
crop.Bottom -
crop.Top);
IntPtr hOldBmp = WindowsApi.SelectObject(hDest, hBmp);
WindowsApi.BitBlt(hDest, 0, 0, crop.Right - crop.Left,
crop.Bottom - crop.Top, hSrc, crop.Left, crop.Top,
CopyPixelOperation.SourceCopy |
CopyPixelOperation.CaptureBlt);
Bitmap bmp = Image.FromHbitmap(hBmp);
WindowsApi.SelectObject(hDest, hOldBmp);
WindowsApi.DeleteObject(hBmp);
WindowsApi.DeleteDC(hDest);
WindowsApi.DeleteDC(hSrc);
return(bmp.Clone(new Rectangle(0, 0, bmp.Width, bmp.Height),
PixelFormat.Format24bppRgb));
}