// acxelements.h

EVT_ACX_AUDIOENGINE_ASSIGN_ENGINE_FORMAT EvtAcxAudioengineAssignEngineFormat;

NTSTATUS EvtAcxAudioengineAssignEngineFormat(
  ACXAUDIOENGINE AudioEngine,
  ACXDATAFORMAT Format
)
{...}
View the official Windows Driver Kit DDI reference

NtDoc

No description available.

Edit description on GitHub

Windows Driver Kit DDI reference (nc-acxelements-evt_acx_audioengine_assign_engine_format)

Description

The EVT_ACX_AUDIOENGINE_ASSIGN_ENGINE_FORMAT callback function is implemented by the driver and is called when the internal mix format is set for an audio engine node.

Parameters

`AudioEngine`

An ACXAUDIOENGINE object that is used in a render circuit to represent a DSP. For more information about ACX objects, see Summary of ACX Objects.

`Format`

An ACXDATAFORMAT object that describes the mix format for the specified audio engine.

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.

EVT_ACX_AUDIOENGINE_ASSIGN_ENGINE_FORMAT        DspR_EvtAcxAudioEngineAssignEngineDeviceFormat;

NTSTATUS
DspR_EvtAcxAudioEngineAssignEngineDeviceFormat(
    ACXAUDIOENGINE,
    ULONG
)
{
    PAGED_CODE();

    // Custom Code goes here

    return STATUS_SUCCESS;
}

ACX requirements

Minimum ACX version: 1.0

For more information about ACX versions, see ACX version overview.

EVT_ACX_AUDIOENGINE_ASSIGN_ENGINE_FORMAT - NtDoc