Man page - sdl_waitevent(3)

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SDL_WaitEvent - Wait indefinitely for the next available event.

Defined in SDL3/SDL_events.h

#include "SDL3/SDL.h"

bool SDL_WaitEvent(SDL_Event *event);

If event is not NULL, the next event is removed from the queue and stored in the SDL_Event
structure pointed to by event .

As this function may implicitly call SDL_PumpEvents (), you can only call this function in the thread that initialized the video subsystem.

event

the SDL_Event

structure to be filled in with the next event from the queue, or NULL.

Returns true on success or false if there was an error while waiting for events; call SDL_GetError () for more information.

This function should only be called on the main thread.

This function is available since SDL 3.2.0.