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SDL_RegisterEvents

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

Syntax

Uint32 SDL_RegisterEvents(int numevents);

Function Parameters

numevents

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.

Remarks

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.

Version

This function is available since SDL 2.0.0.

Code Examples

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

SDL_PushEvent

CategoryAPI, CategoryEvents


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