Type Alias retro_environment_t 

pub type retro_environment_t = Option<unsafe extern "C" fn(u32, *mut c_void) -> bool>;

Environment callback. Gives implementations a way of performing uncommon tasks. Extensible.

Aliased Type

pub enum retro_environment_t {
    None,
    Some(unsafe extern "C" fn(u32, *mut c_void) -> bool),
}

Variants

None

No value.

Some(unsafe extern "C" fn(u32, *mut c_void) -> bool)

Some value of type T.