public static bool CaptureWindow(Control control, ref Bitmap bitmap)
{
Graphics graphics = Graphics.FromImage(bitmap);
IntPtr lParam = new IntPtr(12);
IntPtr hdc = graphics.GetHdc();
HelpWin32.SendMessage(control.Handle, 791, hdc, lParam);
graphics.ReleaseHdc(hdc);
graphics.Dispose();
return(true);
}
public static IntPtr SendMessage(IntPtr hWnd, int msg, int wParam)
{
return(HelpWin32.SendMessage(hWnd, msg, wParam, ""));
}