the mappings file to load.
the number of mappings added or -1 on failure; call SDL_GetError() for more information.
Threadsafety: It is safe to call this function from any thread.
SDL_AddGamepadMapping SDL_AddGamepadMappingsFromIO SDL_GetGamepadMapping SDL_GetGamepadMappingForGUID SDL_HINT_GAMECONTROLLERCONFIG SDL_HINT_GAMECONTROLLERCONFIG_FILE SDL_EVENT_GAMEPAD_ADDED
Load a set of gamepad mappings from a file.
You can call this function several times, if needed, to load different database files.
If a new mapping is loaded for an already known gamepad GUID, the later version will overwrite the one currently loaded.
Any new mappings for already plugged in controllers will generate SDL_EVENT_GAMEPAD_ADDED events.
Mappings not belonging to the current platform or with no platform field specified will be ignored (i.e. mappings for Linux will be ignored in Windows, etc).