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Cancellation

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Most of operations in the WWSAPI can be canceled during execution.

Which function you use to cancel an operation depends on the object affected.

Function Description
WsAbortChannel Cancels all pending input and output on a specified channel and sets the channel state to WS_CHANNEL_STATE_FAULTED.
WsAbortListener Cancels all pending input and output on a specified listener.
WsAbortServiceProxy Cancels all pending input and output on a specified service proxy.
WsAbortServiceHost Interrupts and discontinues current operations on the service host.
WsAbandonCall Abandons a call, a specified call on a specified service proxy.

 

For information on cancellations that affect server side service operations and service-model callbacks, see Call Cancellation.