Fixed getting locked to screen after ctrl+alt+del. Also fixed

cursor not being hidden on win32 server when on client screens
(which happened when using low-level hooks).

lib/platform/CMSWindowsSecondaryScreen.cpp

@@ -417,6 +417,13 @@ CMSWindowsSecondaryScreen::preDestroyWindow(HWND)
 	// do nothing
 }
 
+void
+CMSWindowsSecondaryScreen::onAccessibleDesktop()
+{
+	// get the current keyboard state
+	updateKeys();
+}
+
 void
 CMSWindowsSecondaryScreen::onPreMainLoop()
 {