EN
Dieser Inhalt ist in Ihrer Sprache leider nicht verfügbar. Im Folgenden finden Sie die englische Version.

WAVEOUTCAPS structure

The WAVEOUTCAPS structure describes the capabilities of a waveform-audio output device.

Syntax


typedef struct {
  WORD      wMid;
  WORD      wPid;
  MMVERSION vDriverVersion;
  TCHAR     szPname[MAXPNAMELEN];
  DWORD     dwFormats;
  WORD      wChannels;
  WORD      wReserved1;
  DWORD     dwSupport;
} WAVEOUTCAPS;

Members

wMid

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

wPid

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

vDriverVersion

Version number of the device driver for the 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.

dwFormats

Standard formats that are supported. Can be a combination of the following:

FormatDescription
WAVE_FORMAT_1M0811.025 kHz, mono, 8-bit
WAVE_FORMAT_1M1611.025 kHz, mono, 16-bit
WAVE_FORMAT_1S0811.025 kHz, stereo, 8-bit
WAVE_FORMAT_1S1611.025 kHz, stereo, 16-bit
WAVE_FORMAT_2M0822.05 kHz, mono, 8-bit
WAVE_FORMAT_2M1622.05 kHz, mono, 16-bit
WAVE_FORMAT_2S0822.05 kHz, stereo, 8-bit
WAVE_FORMAT_2S1622.05 kHz, stereo, 16-bit
WAVE_FORMAT_4M0844.1 kHz, mono, 8-bit
WAVE_FORMAT_4M1644.1 kHz, mono, 16-bit
WAVE_FORMAT_4S0844.1 kHz, stereo, 8-bit
WAVE_FORMAT_4S1644.1 kHz, stereo, 16-bit
WAVE_FORMAT_96M0896 kHz, mono, 8-bit
WAVE_FORMAT_96M1696 kHz, mono, 16-bit
WAVE_FORMAT_96S0896 kHz, stereo, 8-bit
WAVE_FORMAT_96S1696 kHz, stereo, 16-bit

 

wChannels

Number specifying whether the device supports mono (1) or stereo (2) output.

wReserved1

Packing.

dwSupport

Optional functionality supported by the device. The following values are defined:

FlagDescription
WAVECAPS_LRVOLUMESupports separate left and right volume control.
WAVECAPS_PITCHSupports pitch control.
WAVECAPS_PLAYBACKRATESupports playback rate control.
WAVECAPS_SYNCThe driver is synchronous and will block while playing a buffer.
WAVECAPS_VOLUMESupports volume control.
WAVECAPS_SAMPLEACCURATEReturns sample-accurate position information.

 

Remarks

If a device supports volume changes, the WAVECAPS_VOLUME flag will be set for the dwSupport member. If a device supports separate volume changes on the left and right channels, both the WAVECAPS_VOLUME and the WAVECAPS_LRVOLUME flags will be set for this member.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Mmsystem.h (include Windows.h)

See also

Waveform Audio
Waveform Structures

 

 

Community-Beiträge

Anzeigen:
© 2014 Microsoft