Man page - sdl_setassertionhandler(3)

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Manual

SDL_SetAssertionHandler

NAME
HEADER FILE
SYNOPSIS
DESCRIPTION
FUNCTION PARAMETERS
THREAD SAFETY
AVAILABILITY
SEE ALSO

NAME

SDL_SetAssertionHandler - Set an application-defined assertion handler.

HEADER FILE

Defined in SDL3/SDL_assert.h

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

handler

the SDL_AssertionHandler
function to call when an assertion fails or NULL for the default handler.

userdata

a pointer that is passed to handler .

THREAD SAFETY

It is safe to call this function from any thread.

AVAILABILITY

This function is available since SDL 3.2.0.