public static NotificationProxyError np_observe_notifications(NotificationProxyClientHandle client, out string notificationSpec) { System.Runtime.InteropServices.ICustomMarshaler notificationSpecMarshaler = NativeStringMarshaler.GetInstance(null); System.IntPtr notificationSpecNative = System.IntPtr.Zero; NotificationProxyError returnValue = NotificationProxyNativeMethods.np_observe_notifications(client, out notificationSpecNative); notificationSpec = ((string)notificationSpecMarshaler.MarshalNativeToManaged(notificationSpecNative)); notificationSpecMarshaler.CleanUpNativeData(notificationSpecNative); return(returnValue); }
/// <summary> /// Tells the device to send a notification on specified events. /// </summary> /// <param name="client"> /// The client to send to /// </param> /// <param name="notification_spec"> /// Specification of the notifications that should be /// observed. This is expected to be an array of const char* that MUST have a /// terminating NULL entry. /// </param> /// <returns> /// NP_E_SUCCESS on success, NP_E_INVALID_ARG when client is null, /// or an error returned by np_observe_notification. /// </returns> public virtual NotificationProxyError np_observe_notifications(NotificationProxyClientHandle client, out string notificationSpec) { return(NotificationProxyNativeMethods.np_observe_notifications(client, out notificationSpec)); }