SessionChangeDescription Структура

Определение

Указывает причину изменения сеанса служб терминалов.Identifies the reason for a Terminal Services session change.

public value class SessionChangeDescription
public struct SessionChangeDescription
type SessionChangeDescription = struct
Public Structure SessionChangeDescription
Наследование
SessionChangeDescription

Примеры

В следующем примере кода показано использование класса SessionChangeDescription в реализации метода OnSessionChange в классе, производном от ServiceBase.The following code example shows the use of the SessionChangeDescription class in an implementation of the OnSessionChange method in a class derived from ServiceBase. Этот пример кода является частью большого примера, приведенного для класса 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;
            }
        }
    ' Handle a session change notice
    Protected Overrides Sub OnSessionChange(ByVal changeDescription As SessionChangeDescription)
#If LOGEVENTS Then
        System.Diagnostics.EventLog.WriteEntry("SimpleService.OnSessionChange", DateTime.Now.ToLongTimeString() + " - Session change notice received: " + changeDescription.Reason.ToString() + "  Session ID: " + changeDescription.SessionId.ToString())
#End If

        Select Case changeDescription.Reason
            Case SessionChangeReason.SessionLogon
                userCount += 1
#If LOGEVENTS Then
                System.Diagnostics.EventLog.WriteEntry("SimpleService.OnSessionChange", DateTime.Now.ToLongTimeString() + " SessionLogon, total users: " + userCount.ToString())
#End If
            Case SessionChangeReason.SessionLogoff

                userCount -= 1
#If LOGEVENTS Then
                System.Diagnostics.EventLog.WriteEntry("SimpleService.OnSessionChange", DateTime.Now.ToLongTimeString() + " SessionLogoff, total users: " + userCount.ToString())
#End If
            Case SessionChangeReason.RemoteConnect
                userCount += 1
#If LOGEVENTS Then
                System.Diagnostics.EventLog.WriteEntry("SimpleService.OnSessionChange", DateTime.Now.ToLongTimeString() + " RemoteConnect, total users: " + userCount.ToString())
#End If
            Case SessionChangeReason.RemoteDisconnect
                userCount -= 1
#If LOGEVENTS Then
                System.Diagnostics.EventLog.WriteEntry("SimpleService.OnSessionChange", DateTime.Now.ToLongTimeString() + " RemoteDisconnect, total users: " + userCount.ToString())
#End If
            Case SessionChangeReason.SessionLock
#If LOGEVENTS Then
                System.Diagnostics.EventLog.WriteEntry("SimpleService.OnSessionChange", DateTime.Now.ToLongTimeString() + " SessionLock")
#End If
            Case SessionChangeReason.SessionUnlock
#If LOGEVENTS Then
                System.Diagnostics.EventLog.WriteEntry("SimpleService.OnSessionChange", DateTime.Now.ToLongTimeString() + " SessionUnlock")
#End If
            Case Else
        End Select

    End Sub

Свойства

Reason

Возвращает причину изменения сеанса.Gets the reason for the session change.

SessionId

Возвращает идентификатор связанного сеанса.Gets the session ID for the associated session.

Методы

Equals(Object)

Определяет, равен ли заданный объект описанию изменения текущего сеанса.Determines whether the specified object is equal to the current session change description.

Equals(SessionChangeDescription)

Определяет, равно ли описание изменения заданного сеанса описанию изменения текущего сеанса.Determines whether the specified session change description is equal to the current session change description.

GetHashCode()

Возвращает хэш-код для описания изменения текущего сеанса.Gets a hash code for the current session change description.

Операторы

Equality(SessionChangeDescription, SessionChangeDescription)

Возвращает значение, указывающее, равны ли две структуры SessionChangeDescription.Returns a value indicating whether two SessionChangeDescription structures are equal.

Inequality(SessionChangeDescription, SessionChangeDescription)

Возвращает значение, указывающее, являются ли две структуры SessionChangeDescription неравными.Returns a value indicating whether two SessionChangeDescription structures are not equal.

Применяется к