2.0.7

CUETools.Codecs.CoreAudio/CoreAudioApi/MMDeviceCollection.cs

@@ -0,0 +1,96 @@
+/*
+  LICENSE
+  -------
+  Copyright (C) 2007 Ray Molenkamp
+
+  This source code is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this source code or the software it produces.
+
+  Permission is granted to anyone to use this source code for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this source code must not be misrepresented; you must not
+     claim that you wrote the original source code.  If you use this source code
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original source code.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+// updated for NAudio
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Runtime.InteropServices;
+using NAudio.CoreAudioApi.Interfaces;
+
+namespace NAudio.CoreAudioApi
+{
+    /// <summary>
+    /// Multimedia Device Collection
+    /// </summary>
+    public class MMDeviceCollection : IEnumerable<MMDevice>
+    {
+        private IMMDeviceCollection _MMDeviceCollection;
+
+        /// <summary>
+        /// Device count
+        /// </summary>
+        public int Count
+        {
+            get
+            {
+                int result;
+                Marshal.ThrowExceptionForHR(_MMDeviceCollection.GetCount(out result));
+                return result;
+            }
+        }
+
+        /// <summary>
+        /// Get device by index
+        /// </summary>
+        /// <param name="index">Device index</param>
+        /// <returns>Device at the specified index</returns>
+        public MMDevice this[int index]
+        {
+            get
+            {
+                IMMDevice result;
+                _MMDeviceCollection.Item(index, out result);
+                return new MMDevice(result);
+            }
+        }
+
+        internal MMDeviceCollection(IMMDeviceCollection parent)
+        {
+            _MMDeviceCollection = parent;
+        }
+
+        #region IEnumerable<MMDevice> Members
+
+        /// <summary>
+        /// Get Enumerator
+        /// </summary>
+        /// <returns>Device enumerator</returns>
+        public IEnumerator<MMDevice> GetEnumerator()
+        {            
+            for (int index = 0; index < Count; index++)
+            {
+                yield return this[index];
+            }
+        }
+
+        #endregion
+
+        #region IEnumerable Members
+
+        System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
+        {
+            return GetEnumerator();
+        }
+
+        #endregion
+    }
+}