| Re: [AD] [WIN] DirectDraw surfaces restoring |
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> Would it be feasible to call the switch out callback just
> before ? I'd expect switch calls to be paired, and Valkin II
> expects that: it increments and decrements a counter, and
> pauses the game timer while out.
That's a risky expectation under Windows because, even under normal
circumstances, Allegro may send several (unbalanced) SWITCH_OUT/SWITCH_IN
events. It simply propagates the Windows messages and AFAIK they are not
guaranteed to be balanced, especially when a screen resolution switch is
necessary between the desktop and Allegro.
Moreover, wouldn't sending a SWITCH_OUT event many times during the gameplay
be dangerous too ? For example if the global timer is stopped at each event.
However I understand that the opposite viewpoint has the consistency on its
side.
What do other developers think ? Should we definitely make a call now or
wait until the patch proves to work ?
- Eric