mixerGetID (Compact 2013)

3/26/2014

This function retrieves the device identifier for a mixer device associated with a specified device handle.

Syntax

MMRESULT mixerGetID(
  HMIXEROBJ hmxobj, 
  UINT* puMxId, 
  DWORD fdwId 
);

Parameters

  • hmxobj
    Handle to the audio mixer object to map to a mixer device identifier.
  • puMxId
    Pointer to a variable that receives the mixer device identifier.

    If no mixer device is available for the hmxobj object, the value - 1 is placed in this location and the MMSYSERR_NODRIVER error value is returned.

  • fdwId
    Flags for mapping the mixer object hmxobj.

    The following table shows the possible flags.

    Flag

    Description

    MIXER_OBJECTF_HMIXER

    The hmxobj parameter is a mixer device handle returned by the mixerOpen function.

    This flag is optional.

    MIXER_OBJECTF_MIXER

    The hmxobj parameter is the identifier of a mixer device in the range of zero to one less than the number of devices returned by the mixerGetNumDevs function.

    This flag is optional.

    The following flags are supported in other versions of Windows, but not in Windows Embedded Compact.

    Flags not supported in Windows Embedded Compact

    MIXER_OBJECTF_AUX

    MIXER_OBJECTF_HMIDIN

    MIXER_OBJECTF_HMIDIOUT

    MIXER_OBJECTF_HWAVEIN

    MIXER_OBJECTF_HWAVEOUT

    MIXER_OBJECTF_MIDIIN

    MIXER_OBJECTF_MIDIOUT

    MIXER_OBJECTF_WAVEHOUT

    MIXER_OBJECTF_WAVEIN

Return Value

Returns MMSYSERR_NOERROR if successful or an error otherwise.

The following table shows the possible error values.

Value

Description

MMSYSERR_BADDEVICEID

The hmxobj parameter specifies an invalid device identifier.

MMSYSERR_INVALFLAG

One or more flags are invalid.

MMSYSERR_INVALHANDLE

The hmxobj parameter specifies an invalid handle.

MMSYSERR_INVALPARAM

One or more parameters are invalid.

MMSYSERR_NODRIVER

No audio mixer device is available for the object specified by hmxobj.

The location referenced by puMxId also contains the value -1.

Requirements

Header

mmsystem.h

Library

coredll.lib

See Also

Reference

Hardware Audio Mixer Functions
mixerOpen
mixerGetNumDevs