Provided by: libsdl3-doc_3.2.20+ds-2_all 

NAME
SDL_RegisterEvents - Allocate a set of user-defined events, and return the beginning event number for
that set of events.
SYNOPSIS
#include <SDL3/SDL_events.h>
Uint32 SDL_RegisterEvents(int numevents);
FUNCTION PARAMETERS
numevents
the number of events to be allocated.
RETURN VALUE
Returns the beginning event number, or 0 if numevents is invalid or if there are not enough user-defined
events left.
THREAD SAFETY
It is safe to call this function from any thread.
AVAILABILITY
This function is available since SDL 3.2.0.
SEE ALSO
SDL_PushEvent(3)
Simple Directmedia Layer SDL 3.2.20 SDL_RegisterEvents(3)