// Attach registers the given event handler and returns a unique id
// we can use to detach the event at a later point.
func (this *EventManager) Attach(et EventType, cb EventHandler, userdata interface{}) (id int, err error) {
if this.ptr == nil {
return 0, &VLCError{"EventManager is nil"}
}
id = this.getUniqId()
this.m.Lock()
this.events[id] = &eventData{C.libvlc_event_type_t(et), cb, userdata}
this.m.Unlock()
if C.goAttach(this.ptr, this.events[id].t, unsafe.Pointer(this.events[id])) != 0 {
err = checkError()
}
return
}
func (this EventType) String() string {
return C.GoString(C.libvlc_event_type_name(C.libvlc_event_type_t(this)))
}
