Virtual Channel Server Application

The component of an application that uses virtual channels must be a user-mode application running in a client session on the Terminal server. You must provide a method to start the server application. There are several ways to do this, such as a logon script, or a program or script in the Startup folder. Or the user could launch the application.

You must store the name of the virtual channel server application in the registry by adding a subkey under the following location.

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\TerminalServer\Addins

The server application calls WTSVirtualChannelOpen to obtain a handle to a virtual channel. The application can then use the handle with any of the following functions.

Function Description
WTSVirtualChannelClose Closes an open virtual channel handle.
WTSVirtualChannelPurgeInput Purges all queued input data sent from the client to the server on a specific virtual channel.
WTSVirtualChannelPurgeOutput Purges all queued output data sent from the server to the client on a specific virtual channel.
WTSVirtualChannelQuery Returns information about a specified virtual channel.
WTSVirtualChannelRead Reads data from the server end of a virtual channel.
WTSVirtualChannelWrite Writes data to the server end of a virtual channel.

See Also

Implementing Virtual Channels

 Last updated on Saturday, April 10, 2004

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