SDL Forum Index
SDL
Simple DirectMedia Layer Forums
Reply to topic
Changes to SDL_PeepEvents() in 2.0.5
Jeff Backus
Guest

Reply with quote
Hi List,

I manage a F/OSS project(1) that uses libSDL to manage joystick/gamepad
input. We experienced a breakage when upgrading to 2.0.5 due to a change
in the behavior of SDL_PeepEvents(). We use SDL_PumpEvents plus the
following call:
SDL_PeepEvents(NULL, 1, SDL_GETEVENT, SDL_FIRSTEVENT, SDL_LASTEVENT)
as a "SDL_PollEvent + Error Check", since SDL_PollEvent() only returns
whether an event is waiting. In 2.0.4 and earlier, the above call would
return -1, 0, or 1 depending on if there was an error, no events
waiting, or 1 or more events waiting, respectively. In 2.0.5, the above
call now returns -1, 0, or $numEvents. The documentation is a little
ambiguous as to what happens when the first argument is NULL, and the
summary for changeset 10060:739bc5c7d339 (which seems to be where the
change in behavior was introduced) implies that passing in NULL is an
undocumented / underdefined usecase.

So, my question is, is using SDL_PumpEvents() + SDL_PeepEvents(NULL,
...) a supported alternative to SDL_PollEvent()? If so, could we please
update the documentation to clarify how SDL_PeepEvents() should behave
when the first argument is NULL?

Thanks!
Jeff

1: https://github.com/AntiMicro/antimicro

--
Jeff Backus

http://github.com/jsbackus

_______________________________________________
SDL mailing list

http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org
Changes to SDL_PeepEvents() in 2.0.5
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
All times are GMT  
Page 1 of 1  

  
  
 Reply to topic