SessionChangeDescription Structure
Identifies the reason for a Terminal Services session change.
Namespace: System.ServiceProcess
Assembly: System.ServiceProcess (in System.ServiceProcess.dll)
The SessionChangeDescription type exposes the following members.
| Name | Description | |
|---|---|---|
 | Equals(Object) | Determines whether the specified object is equal to the current session change description. (Overrides ValueType.Equals(Object).) |
| Equals(SessionChangeDescription) | Determines whether the specified session change description is equal to the current session change description. |
| GetHashCode | Gets a hash code for the current session change description. (Overrides ValueType.GetHashCode().) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| ToString | Returns the fully qualified type name of this instance. (Inherited from ValueType.) |
| Name | Description | |
|---|---|---|
| Equality | Returns a value indicating whether two SessionChangeDescription structures are equal. |
| Inequality | Returns a value indicating whether two SessionChangeDescription structures are not equal. |
The following code example shows the use of the SessionChangeDescription class in an implementation of the OnSessionChange method in a class derived from ServiceBase. This code example is part of a larger example provided for the ServiceBase class.
// Handle a session change notice
protected override void OnSessionChange(SessionChangeDescription changeDescription)
{
#if LOGEVENTS
EventLog.WriteEntry("SimpleService.OnSessionChange", DateTime.Now.ToLongTimeString() +
" - Session change notice received: " +
changeDescription.Reason.ToString() + " Session ID: " +
changeDescription.SessionId.ToString());
#endif
switch (changeDescription.Reason)
{
case SessionChangeReason.SessionLogon:
userCount += 1;
#if LOGEVENTS
EventLog.WriteEntry("SimpleService.OnSessionChange",
DateTime.Now.ToLongTimeString() +
" SessionLogon, total users: " +
userCount.ToString());
#endif
break;
case SessionChangeReason.SessionLogoff:
userCount -= 1;
#if LOGEVENTS
EventLog.WriteEntry("SimpleService.OnSessionChange",
DateTime.Now.ToLongTimeString() +
" SessionLogoff, total users: " +
userCount.ToString());
#endif
break;
case SessionChangeReason.RemoteConnect:
userCount += 1;
#if LOGEVENTS
EventLog.WriteEntry("SimpleService.OnSessionChange",
DateTime.Now.ToLongTimeString() +
" RemoteConnect, total users: " +
userCount.ToString());
#endif
break;
case SessionChangeReason.RemoteDisconnect:
userCount -= 1;
#if LOGEVENTS
EventLog.WriteEntry("SimpleService.OnSessionChange",
DateTime.Now.ToLongTimeString() +
" RemoteDisconnect, total users: " +
userCount.ToString());
#endif
break;
case SessionChangeReason.SessionLock:
#if LOGEVENTS
EventLog.WriteEntry("SimpleService.OnSessionChange",
DateTime.Now.ToLongTimeString() +
" SessionLock");
#endif
break;
case SessionChangeReason.SessionUnlock:
#if LOGEVENTS
EventLog.WriteEntry("SimpleService.OnSessionChange",
DateTime.Now.ToLongTimeString() +
" SessionUnlock");
#endif
break;
default:
break;
}
}
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
