// ks.h

void KsStreamPointerCancelTimeout(
  [in] PKSSTREAM_POINTER StreamPointer
);
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Windows Driver Kit DDI reference (nf-ks-ksstreampointercanceltimeout)

The KsStreamPointerCancelTimeout function cancels a previously scheduled time-out callback on the specified stream pointer.

A pointer to a KSSTREAM_POINTER structure representing the stream pointer for which to cancel a registered time-out callback.

Minidrivers should use KsStreamPointerScheduleTimeout to schedule a time-out callback on a specified stream pointer.

The KsStreamPointerCancelTimeout function does not affect stream pointers that have no currently scheduled time-out callback.