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SDL_SetAssertionHandler(3) SDL3 FUNCTIONS SDL_SetAssertionHandler(3)

NAME

SDL_SetAssertionHandler - Set an application-defined assertion handler.

SYNOPSIS

#include "SDL3/SDL.h"
void SDL_SetAssertionHandler(
                    SDL_AssertionHandler handler,
                    void *userdata);

DESCRIPTION

This function allows an application to show its own assertion UI and/or force the response to an assertion failure. If the application doesn't provide this, SDL will try to do the right thing, popping up a system-specific GUI dialog, and probably minimizing any fullscreen windows.

This callback may fire from any thread, but it runs wrapped in a mutex, so it will only fire from one thread at a time.

This callback is NOT reset to SDL's internal handler upon

SDL_Quit ()!

FUNCTION PARAMETERS

the SDL_AssertionHandler
function to call when an assertion fails or NULL for the default handler
a pointer that is passed to handler

AVAILABILITY

This function is available since SDL 3.0.0.

SEE ALSO

SDL_GetAssertionHandler(3)

SDL 3.1.0 SDL