Type Alias PTP_WORK_CALLBACK 

pub type PTP_WORK_CALLBACK = Option<unsafe extern "stdcall" fn(Instance: PTP_CALLBACK_INSTANCE, Context: PVOID, Work: PTP_WORK)>;

Aliased Type

pub enum PTP_WORK_CALLBACK {
    None,
    Some(unsafe extern "stdcall" fn(*mut _TP_CALLBACK_INSTANCE, *mut c_void, *mut _TP_WORK)),
}

Variants

None

No value.

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

Some value of type T.