/// <summary> /// Starts listening for notifications in the specified registry key. /// /// Each part of the key must be provided separately so that the watcher /// can open its own handle. /// </summary> /// <param name="hive">The hive to watch</param> /// <param name="view">The view to watch</param> /// <param name="key">The key to watch</param> /// <param name="handler">The event handler to invoke</param> /// <param name="recursive">True to watch all subkeys as well</param> /// <param name="notifyValueChange"> /// True to notify if a value is added, removed or updated. /// </param> /// <param name="notifyKeyChange"> /// True to notify if a subkey is added or removed. /// </param> /// <param name="tag"> /// An arbitrary identifier to include with any raised events. /// </param> /// <returns>An opaque token that can be pased to Remove.</returns> public object Add(RegistryHive hive, RegistryView view, string key, RegistryChangedEventHandler handler, bool recursive = false, bool notifyValueChange = true, bool notifyKeyChange = true, object tag = null) { if (key == null) { throw new ArgumentNullException("key"); } if (handler == null) { throw new ArgumentNullException("handler"); } if (!(notifyValueChange | notifyKeyChange)) { throw new InvalidOperationException("Must wait for at least one type of change"); } var args = new RegistryChangedEventArgs( hive, view, key, recursive, notifyValueChange, notifyKeyChange, tag ); int currentWatcher = -1; RegistryWatcher watcher; var token = AddInternal(handler, args); while (token == null) { if (_extraWatchers == null) { _extraWatchers = new List <RegistryWatcher>(); } currentWatcher += 1; if (currentWatcher >= _extraWatchers.Count) { watcher = new RegistryWatcher(); _extraWatchers.Add(watcher); } else { watcher = _extraWatchers[currentWatcher]; } token = watcher.AddInternal(handler, args); } return(token); }
private void Registry_Software_Changed(object sender, RegistryChangedEventArgs e) { using (var root = RegistryKey.OpenBaseKey(e.Hive, e.View)) using (var key = root.OpenSubKey(CanopyCorePath)) { if (key != null) { Registry_Changed(sender, e); e.CancelWatcher = true; RegistryWatcher.Instance.Add(e.Hive, e.View, CanopyCorePath, Registry_Changed, recursive: true, notifyValueChange: true, notifyKeyChange: true); } } }
public WatchEntry(RegistryChangedEventHandler callback, RegistryChangedEventArgs args) { using (var baseKey = RegistryKey.OpenBaseKey(args.Hive, args.View)) { _key = baseKey.OpenSubKey(args.Key, RegistryKeyPermissionCheck.Default, RegistryRights.Notify); } if (_key == null) { throw new ArgumentException("Key does not exist"); } _eventHandle = new AutoResetEvent(false); _callback = callback; _args = args; Register(); }
private object AddInternal(RegistryChangedEventHandler handler, RegistryChangedEventArgs args) { WatchEntry newEntry; lock (_eventsLock) { if (_entries.Count >= NativeMethods.MAXIMUM_WAIT_OBJECTS) { return(null); } newEntry = new WatchEntry(handler, args); _entries.Add(newEntry); } _itemAdded.Set(); return(newEntry); }
private void Registry_Changed(object sender, RegistryChangedEventArgs e) { DiscoverInterpreterFactories(); }
private object AddInternal(RegistryChangedEventHandler handler, RegistryChangedEventArgs args) { WatchEntry newEntry; lock (_eventsLock) { if (_entries.Count >= NativeMethods.MAXIMUM_WAIT_OBJECTS) { return null; } newEntry = new WatchEntry(handler, args); _entries.Add(newEntry); } _itemAdded.Set(); return newEntry; }
/// <summary> /// Starts listening for notifications in the specified registry key. /// /// Each part of the key must be provided separately so that the watcher /// can open its own handle. /// </summary> /// <param name="hive">The hive to watch</param> /// <param name="view">The view to watch</param> /// <param name="key">The key to watch</param> /// <param name="handler">The event handler to invoke</param> /// <param name="recursive">True to watch all subkeys as well</param> /// <param name="notifyValueChange"> /// True to notify if a value is added, removed or updated. /// </param> /// <param name="notifyKeyChange"> /// True to notify if a subkey is added or removed. /// </param> /// <param name="tag"> /// An arbitrary identifier to include with any raised events. /// </param> /// <returns>An opaque token that can be pased to Remove.</returns> public object Add(RegistryHive hive, RegistryView view, string key, RegistryChangedEventHandler handler, bool recursive = false, bool notifyValueChange = true, bool notifyKeyChange = true, object tag = null) { if (key == null) { throw new ArgumentNullException("key"); } if (handler == null) { throw new ArgumentNullException("handler"); } if (!(notifyValueChange | notifyKeyChange)) { throw new InvalidOperationException("Must wait for at least one type of change"); } var args = new RegistryChangedEventArgs( hive, view, key, recursive, notifyValueChange, notifyKeyChange, tag ); int currentWatcher = -1; RegistryWatcher watcher; var token = AddInternal(handler, args); while (token == null) { if (_extraWatchers == null) { _extraWatchers = new List<RegistryWatcher>(); } currentWatcher += 1; if (currentWatcher >= _extraWatchers.Count) { watcher = new RegistryWatcher(); _extraWatchers.Add(watcher); } else { watcher = _extraWatchers[currentWatcher]; } token = watcher.AddInternal(handler, args); } return token; }