public static System.Drawing.Rectangle MapRectangle(this System.Windows.Forms.IWin32Window ctrl, System.Drawing.Rectangle rectangle, System.Windows.Forms.IWin32Window newWin = null)
{
NativeMethods.RECT ir = rectangle;
MapWindowPoints(ctrl == null ? IntPtr.Zero : ctrl.Handle, newWin == null ? IntPtr.Zero : newWin.Handle, ref ir, 2);
return(ir);
}
internal static extern int MapWindowPoints(IntPtr hWndFrom, IntPtr hWndTo, [In, Out] ref NativeMethods.RECT rect, [MarshalAs(UnmanagedType.U4)] int cPoints);