2 // Microsoft.Win32.SystemEvents.cs
5 // Johannes Roith (johannes@jroith.de)
6 // Andreas Nahr (ClassDevelopment@A-SoftTech.com)
8 // (C) 2002 Johannes Roith
9 // (C) 2003 Andreas Nahr
10 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
12 // Permission is hereby granted, free of charge, to any person obtaining
13 // a copy of this software and associated documentation files (the
14 // "Software"), to deal in the Software without restriction, including
15 // without limitation the rights to use, copy, modify, merge, publish,
16 // distribute, sublicense, and/or sell copies of the Software, and to
17 // permit persons to whom the Software is furnished to do so, subject to
18 // the following conditions:
20 // The above copyright notice and this permission notice shall be
21 // included in all copies or substantial portions of the Software.
23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
33 using System.Collections;
34 using System.ComponentModel;
35 using System.Security.Permissions;
38 namespace Microsoft.Win32 {
40 [PermissionSet (SecurityAction.LinkDemand, Unrestricted = true)]
41 public sealed class SystemEvents
43 private static Hashtable TimerStore = new Hashtable ();
45 private SystemEvents ()
49 // You can use timers using the CreateTimer, KillTimer methods and the Timerelapsed event
50 // This is only a partial solution, as it only works in managed code.
51 // TODO implement this on OS level
52 // Till done this solution should work if you are only using the mentioned members
54 public static IntPtr CreateTimer (int interval)
56 Guid Ident = Guid.NewGuid ();
57 int IdentValue = Ident.GetHashCode ();
58 Timer t = new System.Timers.Timer (interval);
59 t.Elapsed += new ElapsedEventHandler (InternalTimerElapsed);
60 TimerStore.Add (IdentValue, t);
61 return new IntPtr (IdentValue);
64 public static void KillTimer (IntPtr timerId)
66 Timer t = (Timer) TimerStore[timerId.GetHashCode()];
68 t.Elapsed -= new ElapsedEventHandler (InternalTimerElapsed);
70 TimerStore.Remove (timerId.GetHashCode());
73 private static void InternalTimerElapsed (object e, ElapsedEventArgs args)
75 if (TimerElapsed != null)
76 TimerElapsed (null, new TimerElapsedEventArgs (IntPtr.Zero));
80 public static void InvokeOnEventsThread(Delegate method)
82 throw new System.NotImplementedException ();
86 public static event System.EventHandler DisplaySettingsChanged
91 [MonoTODO("Currently does nothing on Mono")]
92 public static event EventHandler DisplaySettingsChanging {
96 [MonoTODO("Currently does nothing on Mono")]
97 public static event System.EventHandler EventsThreadShutdown
103 [MonoTODO("Currently does nothing on Mono")]
104 public static event System.EventHandler InstalledFontsChanged
110 [MonoTODO("Currently does nothing on Mono")]
113 [EditorBrowsable (EditorBrowsableState.Never)]
116 public static event System.EventHandler LowMemory
122 [MonoTODO("Currently does nothing on Mono")]
123 public static event System.EventHandler PaletteChanged
129 [MonoTODO("Currently does nothing on Mono")]
130 public static event PowerModeChangedEventHandler PowerModeChanged
136 [MonoTODO("Currently does nothing on Mono")]
137 public static event SessionEndedEventHandler SessionEnded
143 [MonoTODO("Currently does nothing on Mono")]
144 public static event SessionEndingEventHandler SessionEnding
150 [MonoTODO("Currently does nothing on Mono")]
151 public static event SessionSwitchEventHandler SessionSwitch {
156 [MonoTODO("Currently does nothing on Mono")]
157 public static event System.EventHandler TimeChanged
163 public static event TimerElapsedEventHandler TimerElapsed;
165 [MonoTODO("Currently does nothing on Mono")]
166 public static event UserPreferenceChangedEventHandler UserPreferenceChanged
172 [MonoTODO("Currently does nothing on Mono")]
173 public static event UserPreferenceChangingEventHandler UserPreferenceChanging