+const XWindow *screen::lastActiveWindow() const {
+ if (_last_active != _clients.end())
+ return *_last_active;
+
+ // find a window if one exists
+ WindowList::const_iterator it, end = _clients.end();
+ for (it = _clients.begin(); it != end; ++it)
+ if ((*it)->getScreen() == this)
+ return *it;
+
+ // no windows on this screen
+ return 0;
+}
+
+