added support for locking to a screen when the sroll lock is

toggled on or when any key or button is pressed.  fully
implemented on X but stubbed out for now on win32.

server/CMSWindowsPrimaryScreen.cpp

@@ -255,6 +255,12 @@ KeyModifierMask			CMSWindowsPrimaryScreen::getToggleMask() const
 	return mask;
 }
 
+bool					CMSWindowsPrimaryScreen::isLockedToScreen() const
+{
+	// FIXME
+	return false;
+}
+
 void					CMSWindowsPrimaryScreen::onOpenDisplay()
 {
 	assert(m_window == NULL);