pub type PFNVIDSEQUENCECALLBACK = Option<unsafe extern "C" fn(arg1: *mut c_void, arg2: *mut CUVIDEOFORMAT) -> c_int>;
pub enum PFNVIDSEQUENCECALLBACK { None, Some(unsafe extern "C" fn(*mut c_void, *mut CUVIDEOFORMAT) -> i32), }
No value.
Some value of type T.
T