wave/out
The wave/out device class consists of audio devices for low-level wave audio
output. You access these devices by using the wave functions, which are
described in the Win32 SDK. Devices in this class are associated with line devices that
support the LINEMEDIAMODE_AUTOMATEDVOICE media mode, which is specified in the
dwMediaModes member of the
LINEDEVCAPS structure for the line device.
The
lineGetID and
phoneGetID functions fill a
VARSTRING structure, setting the
dwStringFormat member to the STRINGFORMAT_BINARY value and appending this additional member:
DWORD DeviceId; // identifier of audio device
The
DeviceId member is the identifier of a closed audio device. You use this identifier in
a call to the
waveOutOpen function to open the device for output. You can use the resulting device
handle to play digitized audio data at the line or phone device.
Although a "wave" device class also exists for low-level wave audio devices,
you should always use the wave/out device class for low-level wave output.
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