SDL_Sandbox.3type - Man Page

Defined in SDL3/SDL_system.h

#include "SDL3/SDL.h"

typedef enum SDL_Sandbox
{
    SDL_SANDBOX_NONE = 0,
    SDL_SANDBOX_UNKNOWN_CONTAINER,
    SDL_SANDBOX_FLATPAK,
    SDL_SANDBOX_SNAP,
    SDL_SANDBOX_MACOS
} SDL_Sandbox;

This enum is available since SDL 3.2.0.