Type Alias PTP_SIMPLE_CALLBACK 

pub type PTP_SIMPLE_CALLBACK = Option<unsafe extern "C" fn(Instance: PTP_CALLBACK_INSTANCE, Context: PVOID)>;

Aliased Type

pub enum PTP_SIMPLE_CALLBACK {
    None,
    Some(unsafe extern "C" fn(*mut _TP_CALLBACK_INSTANCE, *mut c_void)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(*mut _TP_CALLBACK_INSTANCE, *mut c_void))

Some value of type T.