Faders

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 It has been superseded by Volume Controls.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

The fader controls are typically vertical controls that can be adjusted up or down. These controls have a linear scale and use the MIXERCONTROLDETAILS_UNSIGNED structure to retrieve and set control details. The following table describes the types of faders.

Control	Description
Fader	General fade control. The range of acceptable values is 0 through 65,535.
Volume	General volume fade control. The range of acceptable values is 0 through 65,535. For information about changing this range, see the documentation for your mixer device.
Bass	Bass volume fade control. The range of acceptable values is 0 through 65,535. The limits of the bass frequency band are hardware specific. For information about band limits, see the documentation for your mixer device.
Treble	Treble volume fade control. The range of acceptable values is 0 through 65,535. The limits of the treble frequency band are hardware specific. For information about the band limits, see the documentation for your mixer device.
Equalizer	Graphic equalizer control. The range of acceptable values for one band of the equalizer is 0 through 65,535. The number of equalizer bands and their limits are hardware specific. For information about the equalizer, see the documentation for your mixer device. You can use the MIXERCONTROLDETAILS_LISTTEXT structure to retrieve text labels for the equalizer.