Type Alias SDL_AppIterate_func 

pub type SDL_AppIterate_func = Option<unsafe extern "C" fn(appstate: *mut c_void) -> SDL_AppResult>;

Function pointer typedef for SDL_AppIterate.

These are used by SDL_EnterAppMainCallbacks. This mechanism operates behind the scenes for apps using the optional main callbacks. Apps that want to use this should just implement SDL_AppIterate directly.

Parameters

• appstate: an optional pointer, provided by the app in SDL_AppInit.

Return value

Returns SDL_APP_FAILURE to terminate with an error, SDL_APP_SUCCESS to terminate with success, SDL_APP_CONTINUE to continue.

Availability

This datatype is available since SDL 3.2.0.

Aliased Type

pub enum SDL_AppIterate_func {
    None,
    Some(unsafe extern "C" fn(*mut c_void) -> SDL_AppResult),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut c_void) -> SDL_AppResult)

Some value of type T.