AUXCAPS
The
AUXCAPS structure describes the capabilities of an auxiliary output device.
typedef struct {
WORD wMid;
WORD wPid;
MMVERSION vDriverVersion;
CHAR szPname[MAXPNAMELEN];
WORD wTechnology;
WORD wReserved1;
DWORD dwSupport;
} AUXCAPS;
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.
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:
AUXCAPS_AUXIN
Audio output from auxiliary input jacks.
AUXCAPS_CDAUDIO
Audio output from an internal CD-ROM drive.
wReserved1
Padding.
dwSupport
Describes optional functionality supported by the auxiliary audio device.
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.
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