''' Windows XP (v5.1+) This system metric is used in a Terminal Services environment. If the calling process is associated with a Terminal Services client session the return value is nonzero. If the calling process is associated with the Terminal Server console session the return value is zero. The console session is not necessarily the physical console - see WTSGetActiveConsoleSessionId for more information.

''' Windows XP (v5.1+) This system metric is used in a Terminal Services environment. Its value is nonzero if the current session is remotely controlled; zero otherwise

2: TOKEN_INFORMATION_CLASS

/// The buffer receives a DWORD value that indicates the Terminal Services session identifier that is associated with the token.

wtsapi32

3: WTSDisconnectSession

Summary

The WTSDisconnectSession function disconnects the logged-on user from the specified Terminal Services session without closing the session. If the user subsequently logs on to the same terminal server, the user is reconnected to the same session.

4: WTSEnumerateSessions

Summary

This Terminal Services API call lists all local and remote sessions for a given server, including their state (e.g. connected, disconnected) and type (local, RDP). It is the basis for the output of qwinsta.exe.

5: WTSFreeMemory

Summary

The WTSFreeMemory function frees memory allocated by a Terminal Services function.

6: WTSQuerySessionInformation

/// <param name="sessionId">A Terminal Services session identifier. To indicate the session in which the calling application is running

/// Terminal Services session currently attached to the physical console.

/// <remarks>It is not necessary that Terminal Services be running for this function to succeed.</remarks>

/// The WTSFreeMemory function frees memory allocated by a Terminal Services function.

7: WTSSendMessage

Summary

The WTSSendMessage function displays a message box on the client desktop of a specified Terminal Services session.

8: WTSVirtualChannelRead

Summary

Windows Terminal Services Virtual Channel Read—Reads data from the server end of a virtual channel.

9: WTSVirtualChannelWrite

Summary

Windows Terminal Services Virtual Channel Write—Writes data to the server end of a virtual channel.

10: WTS_CONNECTSTATE_CLASS

Summary

Contains int values that indicate the connection state of a Terminal Services session.

Constants

11: WINERROR

/// Only administrators have permission to add, remove, or configure server software during a Terminal services remote session. If you want to install or configure software on the server, contact your network administrator.

kernel32

12: WTSGetActiveConsoleSessionId

Summary

The WTSGetActiveConsoleSessionId function retrieves the Terminal Services session currently attached to the physical console. The physical console is the monitor, keyboard, and mouse.

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