System.Windows.Forms.XplatUIX11.UpdateWindowState C# (CSharp) Method

		private FormWindowState UpdateWindowState (IntPtr handle) {
			IntPtr			actual_atom;
			int			actual_format;
			IntPtr			nitems;
			IntPtr			bytes_after;
			IntPtr			prop = IntPtr.Zero;
			IntPtr			atom;
			int			maximized;
			bool			minimized;
			XWindowAttributes	attributes;
			Hwnd			hwnd;

			hwnd = Hwnd.ObjectFromHandle(handle);

			maximized = 0;
			minimized = false;
			XGetWindowProperty(DisplayHandle, hwnd.whole_window, _NET_WM_STATE, IntPtr.Zero, new IntPtr (256), false, (IntPtr)Atom.XA_ATOM, out actual_atom, out actual_format, out nitems, out bytes_after, ref prop);
			if (((long)nitems > 0) && (prop != IntPtr.Zero)) {
				for (int i = 0; i < (long)nitems; i++) {
					atom = (IntPtr)Marshal.ReadInt32(prop, i * 4);
					if ((atom == _NET_WM_STATE_MAXIMIZED_HORZ) || (atom == _NET_WM_STATE_MAXIMIZED_VERT)) {
						maximized++;
					} else if (atom == _NET_WM_STATE_HIDDEN) {
						minimized = true;
					}
				}
				XFree(prop);
			}

			if (minimized) {
				return FormWindowState.Minimized;
			} else if (maximized == 2) {
				return FormWindowState.Maximized;
			}

			attributes = new XWindowAttributes();
			XGetWindowAttributes(DisplayHandle, hwnd.client_window, ref attributes);
			if (attributes.map_state == MapState.IsUnmapped) {
				return (FormWindowState)(-1);
			}


			return FormWindowState.Normal;
		}