(This is the legacy documentation for SDL2, the previous stable version; SDL3 is the current stable version.)

SDL_EventFilter

A function pointer used for callbacks that watch the event queue.

Header File

Defined in SDL_events.h

Syntax

typedef int (SDLCALL * SDL_EventFilter) (void *userdata, SDL_Event * event);

Function Parameters

userdata	what was passed as userdata to SDL_SetEventFilter() or SDL_AddEventWatch, etc.
event	the event that triggered the callback.

Return Value

Returns 1 to permit event to be added to the queue, and 0 to disallow it. When used with SDL_AddEventWatch, the return value is ignored.

See Also

• SDL_SetEventFilter
• SDL_AddEventWatch

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CategoryAPI, CategoryAPIDatatype, CategoryEvents

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