public static extern IntPtr WindowFromPoint(POINT Point);
public static Point NativeScreenToClient(IntPtr window, Point originalPoint)
{
POINT point1 = new POINT(originalPoint.X, originalPoint.Y);
if (NativeUtils.ScreenToClient(window, ref point1))
{
return new Point(point1.x, point1.y);
}
return Point.Empty;
}
public static extern bool ScreenToClient(IntPtr hWnd, ref POINT lpPoint);
public static extern IntPtr ChildWindowFromPoint(IntPtr hWndParent, POINT Point);