the engine doesn't always allow the game to be paused, and some things (GUI,
movie cutscenes, credits, ...) are outside the main engine loop.
svn-id: r32232
that these are stopped whenever the engine is going to do a mass killing of
game resources, e.g. when restoring or restarting the game. Should fix bug
#1645480. (This was a regression added during the rewrite to support DXA.)
svn-id: r25204
recently added (cursor) palette manager) so that the cursor can be properly
restored after returning from the GUI.
If there's any C++ magic that can keep the backend functions from being called
by anything else than these managing classes, that would probably be a good
idea. Also, since the cursor manager keeps a copy of the cursor image, perhaps
there are at least some backends that will no longer need to?
svn-id: r22639
