Note
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The SetState method changes the transport state of the audio stream.
Syntax
NTSTATUS SetState(
[in] KSSTATE State
);
Parameters
[in] State
Specifies the new state of the stream. This parameter is a KSSTATE enumeration value.
Return value
SetState returns STATUS_SUCCESS if the call was successful. Otherwise, the method returns an appropriate error status code.
Remarks
For most driver implementations, KSSTATE_ACQUIRE and KSSTATE_PAUSE are indistinguishable.
Transitions always occur in one of the following two sequences:
STOP → ACQUIRE → PAUSE → RUN
RUN → PAUSE → ACQUIRE → STOP
The IMiniportWaveRT::NewStream method sets the initial state of the stream to KSSTATE_STOP.
Requirements
| Requirement | Value |
|---|---|
| Header | portcls.h |
| IRQL | PASSIVE_LEVEL |