public static Bitmap Create(IntPtr hDesk)
{
Bitmap bmp = null;
if (!string.IsNullOrEmpty(hDesk.ToString()))
{
// Get window info: size, x, y
WINDOWINFO info = new WINDOWINFO();
info.cbSize = (uint)Marshal.SizeOf(info);
NativeWin32.GetWindowInfo(hDesk, ref info);
Rectangle rect = new Rectangle((int)info.rcWindow.Left, (int)info.rcWindow.Top, Math.Abs((int)info.rcWindow.Left - (int)info.rcWindow.Right), Math.Abs((int)info.rcWindow.Top - (int)info.rcWindow.Bottom));
// Set pointers
IntPtr hSrce = NativeWin32.GetWindowDC(hDesk);
IntPtr hDest = NativeWin32.CreateCompatibleDC(hSrce);
IntPtr hBmp = NativeWin32.CreateCompatibleBitmap(hSrce, rect.Width, rect.Height);
IntPtr hOldBmp = NativeWin32.SelectObject(hDest, hBmp);
// Create bitmap
bmp = new Bitmap(rect.Width, rect.Height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
Graphics gfxScreenShot = Graphics.FromImage(bmp);
gfxScreenShot.CopyFromScreen(rect.X, rect.Y, 0, 0, rect.Size, CopyPixelOperation.SourceCopy);
}
else
{
// logging
}
return bmp;
}
public static extern bool GetWindowInfo(IntPtr hwnd, ref WINDOWINFO pwi);
