SANE_NET_CANCEL

This RPC is used to cancel the current operation of a remote SANE device.

request:	reply:
SANE_Word handle	SANE_Word dummy

The handle argument identifies the connection whose operation should be cancelled.

In the reply, the dummy argument is unused. Its purpose is to ensure proper synchronization (without it, a net client would not be able to determine when the RPC has completed).