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To retrieve the capabilities of a capture device, call the IDirectSoundCapture::GetCapsmethod. The parameter to this method is a pointer to the DSCCAPSstructure. As with other such structures, you have to initialize the dwSizemember before passing it.
On return, the structure contains the number of channels the device supports as well as a combination of values for supported formats, equivalent to the values in the WAVEINCAPSstructure used in the Win32 waveform audio functions.
Last updated on Tuesday, May 18, 2004