AcxStreamInitAssignAcxStreamCallbacks function (acxstreams.h)
The AcxStreamInitAssignAcxStreamCallbacks function sets the callbacks using an ACX_STREAM_CALLBACKS structure and an ACXSTREAM_INIT object. For more information about ACX Objects, see ACX - Summary of ACX Objects.
Syntax
NTSTATUS AcxStreamInitAssignAcxStreamCallbacks(
PACXSTREAM_INIT StreamInit,
PACX_STREAM_CALLBACKS StreamCallbacks
);
Parameters
StreamInit
Address of a ACXSTREAM_INIT object used to define the stream initialization parameters.
StreamCallbacks
An [ACX_STREAM_CALLBACKS structure](An ACX_STREAM_CALLBACKS structure that is used to define the following callbacks.
- PFN_ACX_STREAM_PREPARE_HARDWARE
- PFN_ACX_STREAM_RELEASE_HARDWARE
- PFN_ACX_STREAM_RUN
- PFN_ACX_STREAM_PAUSE
- PFN_ACX_STREAM_ASSIGN_DRM_CONTENT_ID
Return value
Returns STATUS_SUCCESS if the call was successful. Otherwise, it returns an appropriate error code. For more information, see Using NTSTATUS Values.
Remarks
Example
Example usage is shown below.
ACX_STREAM_CALLBACKS streamCallbacks;
//
// Init streaming callbacks.
//
ACX_STREAM_CALLBACKS_INIT(&streamCallbacks);
streamCallbacks.EvtAcxStreamPrepareHardware = Dsp_EvtStreamPrepareHardware;
streamCallbacks.EvtAcxStreamReleaseHardware = Dsp_EvtStreamReleaseHardware;
streamCallbacks.EvtAcxStreamRun = Dsp_EvtStreamRun;
streamCallbacks.EvtAcxStreamPause = Dsp_EvtStreamPause;
status = AcxStreamInitAssignAcxStreamCallbacks(StreamInit, &streamCallbacks);
ACX requirements
Minimum ACX version: 1.0
For more information about ACX versions, see ACX version overview.
Requirements
| Requirement | Value |
|---|---|
| Header | acxstreams.h |
| IRQL | PASSIVE_LEVEL |