Edit

Share via

Querying Auxiliary Audio Devices

  • Article

[The feature associated with this page, Waveform Audio, is a legacy feature. It has been superseded by WASAPI and Audio Graphs. WASAPI and Audio Graphs have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use WASAPI and Audio Graphs instead of Waveform Audio, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

Not all multimedia systems have auxiliary audio support. You can use the auxGetNumDevs function to determine the number of controllable auxiliary devices present in a system.

To get information about a particular auxiliary audio device, use the auxGetDevCaps function. This function fills an AUXCAPS structure with information about the capabilities of a specified device. This information includes the manufacturer and product identifiers, a product name for the device, and the device-driver version number.