private static int GetEventHandleLength()
{
int length = 0;
length += (DeleteEventHandler == null) ? 0 : DeleteEventHandler.GetInvocationList().Length;
length += (UpdateEventHandler == null) ? 0 : UpdateEventHandler.GetInvocationList().Length;
length += (AddEventHandler == null) ? 0 : AddEventHandler.GetInvocationList().Length;
return(length);
}
private static void ChangedEvent(IntPtr userData, NotificationType type, IntPtr operationList, int num)
{
IntPtr operationType;
IntPtr uniqueNumber;
IntPtr notification;
NotificationEventArgs eventargs;
NotificationDeleteEventArgs deleteargs;
for (int i = 0; i < num; i++)
{
uniqueNumber = IntPtr.Zero;
operationType = IntPtr.Zero;
notification = IntPtr.Zero;
Interop.NotificationEventListener.GetOperationData(operationList + (i * Marshal.SizeOf <NotificationOperation>()), NotificationOperationDataType.Type, out operationType);
Interop.NotificationEventListener.GetOperationData(operationList + (i * Marshal.SizeOf <NotificationOperation>()), NotificationOperationDataType.UniqueNumber, out uniqueNumber);
Interop.NotificationEventListener.GetOperationData(operationList + (i * Marshal.SizeOf <NotificationOperation>()), NotificationOperationDataType.Notification, out notification);
if (operationType == IntPtr.Zero)
{
Log.Error(LogTag, "unable to get operationType");
continue;
}
Log.Info(LogTag, "type : " + ((int)operationType).ToString());
Log.Info(LogTag, "Add : " + (AddEventHandler == null ? "0" : AddEventHandler.GetInvocationList().Length.ToString()));
Log.Info(LogTag, "update: " + (UpdateEventHandler == null ? "0" : UpdateEventHandler.GetInvocationList().Length.ToString()));
Log.Info(LogTag, "delete : " + (DeleteEventHandler == null ? "0" : DeleteEventHandler.GetInvocationList().Length.ToString()));
switch ((int)operationType)
{
case (int)NotificationOperationType.Insert:
if (notification != IntPtr.Zero)
{
try
{
eventargs = NotificationEventArgsBinder.BindObject(notification, false);
AddEventHandler?.Invoke(null, eventargs);
}
catch (Exception e)
{
Log.Error(LogTag, e.Message);
}
}
break;
case (int)NotificationOperationType.Update:
if (notification != IntPtr.Zero)
{
try
{
eventargs = NotificationEventArgsBinder.BindObject(notification, false);
UpdateEventHandler?.Invoke(null, eventargs);
}
catch (Exception e)
{
Log.Error(LogTag, e.Message);
}
}
break;
case (int)NotificationOperationType.Delete:
if (uniqueNumber != IntPtr.Zero)
{
try
{
deleteargs = NotificationDeleteEventArgsBinder.BindObject((int)uniqueNumber);
DeleteEventHandler?.Invoke(null, deleteargs);
}
catch (Exception e)
{
Log.Error(LogTag, e.Message);
}
}
break;
default:
Log.Info(LogTag, "Event : " + (int)operationType);
break;
}
}
}