devela::_dep::sdl3::sys::assert

Function SDL_SetAssertionHandler

pub unsafe extern "C" fn SDL_SetAssertionHandler(
    handler: Option<unsafe extern "C" fn(_: *const SDL_AssertData, _: *mut c_void) -> SDL_AssertState>,
    userdata: *mut c_void,
)
Available on crate feature dep_sdl3 only.
Expand description

Set an application-defined assertion handler.

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()]!

§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.

§See also