Type Alias PTP_WORK_CALLBACK
pub type PTP_WORK_CALLBACK = Option<unsafe extern "system" fn(instance: PTP_CALLBACK_INSTANCE, context: *mut c_void, work: PTP_WORK)>;Aliased Type§
pub enum PTP_WORK_CALLBACK {
None,
Some(unsafe extern "system" fn(PTP_CALLBACK_INSTANCE, *mut c_void, PTP_WORK)),
}