Working with Windows System Volume

Volume Control is a system component for playback/recording volume adjustment, which looks something like this:

Windows provides API to access and manipulate controls in this component.

Volume Mixer

Despite the name, Mixer demo does not mix audio streams. It shows how to use classes from the unaMsMixer unit, designed to work with system mixer component. You can select recording source line, control the volume levels and do other tasks, which usually can be done with standard Volume Control application.

Download

Precompiled binary of this sample is included in the Demos package.