cuetools.net/CUETools.Codecs.CoreAudio/CoreAudioApi/DataFlow.cs

using System;
using System.Collections.Generic;
using System.Text;

namespace NAudio.CoreAudioApi
{
    /// <summary>
    /// The EDataFlow enumeration defines constants that indicate the direction 
    /// in which audio data flows between an audio endpoint device and an application
    /// </summary>
    public enum DataFlow
    {
        /// <summary>
        /// Audio rendering stream. 
        /// Audio data flows from the application to the audio endpoint device, which renders the stream.
        /// </summary>
        Render,
        /// <summary>
        /// Audio capture stream. Audio data flows from the audio endpoint device that captures the stream, 
        /// to the application
        /// </summary>
        Capture,
        /// <summary>
        /// Audio rendering or capture stream. Audio data can flow either from the application to the audio 
        /// endpoint device, or from the audio endpoint device to the application.
        /// </summary>
        All
    };


}