DOKK / manpages / debian 13 / libsdl3-doc / SDL_MainThreadCallback.3type.en
SDL_MainThreadCallback(3type) SDL3 DATATYPES SDL_MainThreadCallback(3type)

SDL_MainThreadCallback - Callback run on the main thread.

Defined in SDL3/SDL_init.h

#include "SDL3/SDL.h"
typedef void (SDLCALL *SDL_MainThreadCallback)(void *userdata);

an app-controlled pointer that is passed to the callback.

This datatype is available since SDL 3.2.0.

(3), SDL_RunOnMainThread(3)

SDL 3.2.10 Simple Directmedia Layer