AUXCAPS structure

The AUXCAPS structure describes the capabilities of an auxiliary output device.

Syntax

typedef struct auxcaps_tag {
  WORD    wMid;
  WORD    wPid;
  VERSION vDriverVersion;
  char    szPname[MAXPNAMELEN];
  WORD    wTechnology;
  DWORD   dwSupport;
} AUXCAPS, *PAUXCAPS, *NPAUXCAPS, *LPAUXCAPS;

Members

wMid

Manufacturer identifier for the device driver for the auxiliary audio device. Manufacturer identifiers are defined in Manufacturer and Product Identifiers.

wPid

Product identifier for the auxiliary audio device. Currently, no product identifiers are defined for auxiliary audio devices.

vDriverVersion

Version number of the device driver for the auxiliary audio device. The high-order byte is the major version number, and the low-order byte is the minor version number.

szPname

Product name in a null-terminated string.

wTechnology

Type of the auxiliary audio output:

Name Description
AUXCAPS_AUXIN
Audio output from auxiliary input jacks.
AUXCAPS_CDAUDIO
Audio output from an internal CD-ROM drive.

dwSupport

Describes optional functionality supported by the auxiliary audio device.

Name Description
AUXCAPS_LRVOLUME
Supports separate left and right volume control.
AUXCAPS_VOLUME
Supports volume control.
 

If a device supports volume changes, the AUXCAPS_VOLUME flag will be set. If a device supports separate volume changes on the left and right channels, both AUXCAPS_VOLUME and the AUXCAPS_LRVOLUME will be set.

Requirements

   
Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Header mmeapi.h (include Windows.h)