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

		internal override bool SetOwner(IntPtr handle, IntPtr handle_owner) {
			Hwnd hwnd;
			Hwnd hwnd_owner;

			hwnd = Hwnd.ObjectFromHandle(handle);

			if (handle_owner != IntPtr.Zero) {
				hwnd_owner = Hwnd.ObjectFromHandle(handle_owner);
				lock (XlibLock) {
					int[]	atoms;

					atoms = new int[8];

					atoms[0] = _NET_WM_WINDOW_TYPE_NORMAL.ToInt32();
					XChangeProperty(DisplayHandle, hwnd.whole_window, _NET_WM_WINDOW_TYPE, (IntPtr)Atom.XA_ATOM, 32, PropertyMode.Replace, atoms, 1);

					if (hwnd_owner != null) {
						XSetTransientForHint(DisplayHandle, hwnd.whole_window, hwnd_owner.whole_window);
					} else {
						XSetTransientForHint(DisplayHandle, hwnd.whole_window, RootWindow);
					}
				}
			} else {
				lock (XlibLock) {
					XDeleteProperty(DisplayHandle, hwnd.whole_window, (IntPtr)Atom.XA_WM_TRANSIENT_FOR);
				}
			}
			return true;
		}