public static extern bool GetWindowInfo(IntPtr hwnd, ref WindowInfo info);
public static WindowInfo GetWindowInfo(IntPtr hwnd)
{
WindowInfo wnfo = new WindowInfo();
wnfo.cbSize = Marshal.SizeOf(wnfo);
if (!Api_User32.GetWindowInfo(hwnd, ref wnfo))
throw new Win32Exception(Marshal.GetLastWin32Error(), "Unable to retrieve window information.");
return wnfo;
}