(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)

SDL_MAIN_USE_CALLBACKS

Inform SDL to use the main callbacks instead of main.

Header File

Syntax

#define SDL_MAIN_USE_CALLBACKS 1

Remarks

SDL does not define this macro, but will check if it is defined when including SDL_main.h. If defined, SDL will expect the app to provide several functions: SDL_AppInit, SDL_AppEvent, SDL_AppIterate, and SDL_AppQuit. The app should not provide a main function in this case, and doing so will likely cause the build to fail.

Please see README/main-functions, (or docs/README-main-functions.md in the source tree) for a more detailed explanation.

Version

This macro is used by the headers since SDL 3.0.0.