SDL_PeepEvents(3) SDL API Reference SDL_PeepEvents(3)NAME
SDL_PeepEvents - Checks the event queue for messages and optionally returns them.
int SDL_PeepEvents(SDL_Event *events, int numevents, SDL_eventaction action, Uint32 mask);
Checks the event queue for messages and optionally returns them.
If action is SDL_ADDEVENT, up to numevents events will be added to the back of the event queue.
If action is SDL_PEEKEVENT, up to numevents events at the front of the event queue, matching mask, will be returned and will not be removed
from the queue.
If action is SDL_GETEVENT, up to numevents events at the front of the event queue, matching mask, will be returned and will be removed from
This function is thread-safe.
This function returns the number of events actually stored, or -1 if there was an error.
SDL_Event, SDL_PollEvent, SDL_PushEvent
SDL Tue 11 Sep 2001, 22:59 SDL_PeepEvents(3)
Check Out this Related Man Page
SDL_SetEventFilter(3) SDL API Reference SDL_SetEventFilter(3)NAME
SDL_SetEventFilter - Sets up a filter to process all events before they are posted to the event queue.
void SDL_SetEventFilter(SDL_EventFilter filter);
This function sets up a filter to process all events before they are posted to the event queue. This is a very powerful and flexible fea-
ture. The filter is prototyped as:
typedef int (*SDL_EventFilter)(const SDL_Event *event);
If the filter returns 1, then the event will be added to the internal queue. If it returns 0, then the event will be dropped from the
queue. This allows selective filtering of dynamically.
There is one caveat when dealing with the SDL_QUITEVENT event type. The event filter is only called when the window manager desires to
close the application window. If the event filter returns 1, then the window will be closed, otherwise the window will remain open if pos-
sible. If the quit event is generated by an interrupt signal, it will bypass the internal queue and be delivered to the application at the
next event poll.
Events pushed onto the queue with SDL_PushEvent or SDL_PeepEvents do not get passed through the event filter.
Be Careful! The event filter function may run in a different thread so be careful what you do within it.
SDL_Event, SDL_GetEventFilter, SDL_PushEvent
SDL Tue 11 Sep 2001, 22:59 SDL_SetEventFilter(3)
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