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Allocate a set of user-defined events, and return the beginning event number for that set of events.


Uint32 SDL_RegisterEvents(int numevents);

Function Parameters


the number of events to be allocated

Return Value

Returns the beginning event number, or (Uint32)-1 if there are not enough user-defined events left.


Calling this function with numevents <= 0 is an error and will return (Uint32)-1.

Note, (Uint32)-1 means the maximum unsigned 32-bit integer value (or 0xFFFFFFFF), but is clearer to write.


This function is available since SDL 2.0.0.

Code Examples

<<Include(SDL_UserEvent, , , from="== Code Examples ==", to="== Remarks ==")>>


CategoryAPI, CategoryEvents

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