系统接口的使用

Question

在win7下调用系统的麦克风功能，可能会用到系统的IDirectSoundCapture接口，怎么用啊
 MSDN的链接地址是http://msdn.microsoft.com/en-us/library/ms897901.aspx
guid 也知道

Answer 1

给你一段通过COM操纵Win7任务栏按钮进度的代码，希望有帮助。
    public static class Windows7
    {
        static ITaskbarList3 TaskbarList3;
        static bool _isWin7;        static Windows7()
        {
            OperatingSystem os = Environment.OSVersion;            _isWin7 = os.Platform == PlatformID.Win32NT && os.Version.Major >= 6 && os.Version.Minor >= 1;            if (_isWin7)
            {
                TaskbarList3 = (ITaskbarList3)(new CTaskbarList());
            }
        }        public static void SetTaskbarProgressValue(IntPtr hWnd, ulong current, ulong max)
        {
            if (_isWin7)
            {
                TaskbarList3.SetProgressState(hWnd, TaskbarProgresState.Normal);
                TaskbarList3.SetProgressValue(hWnd, current, max);
            }
        }        public static void SetTaskbarProgressState(IntPtr hWnd, TaskbarProgresState state)
        {
            if (_isWin7)
                TaskbarList3.SetProgressState(hWnd, state);
        }        public static bool IsWindows7OrLater
        {
            get { return _isWin7; }
        }        public enum TaskbarProgresState
        {
            None = 0,
            Indeterminate = 0x1,
            Normal = 0x2,
            Error = 0x4,
            Paused = 0x8
        }
        #region COM types        [ComImportAttribute()]
        [GuidAttribute("ea1afb91-9e28-4b86-90e9-9e9f8a5eefaf")]
        [InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
        internal interface ITaskbarList3
        {
            // ITaskbarList
            [PreserveSig]
            void HrInit();
            [PreserveSig]
            void AddTab(IntPtr hwnd);
            [PreserveSig]
            void DeleteTab(IntPtr hwnd);
            [PreserveSig]
            void ActivateTab(IntPtr hwnd);
            [PreserveSig]
            void SetActiveAlt(IntPtr hwnd);            // ITaskbarList2
            [PreserveSig]
            void MarkFullscreenWindow(
                IntPtr hwnd,
                [MarshalAs(UnmanagedType.Bool)] bool fFullscreen);            // ITaskbarList3
            void SetProgressValue(IntPtr hwnd, UInt64 ullCompleted, UInt64 ullTotal);
            void SetProgressState(IntPtr hwnd, TaskbarProgresState tbpFlags);        }        [GuidAttribute("56FDF344-FD6D-11d0-958A-006097C9A090")]
        [ClassInterfaceAttribute(ClassInterfaceType.None)]
        [ComImportAttribute()]
        internal class CTaskbarList { }
        #endregion
    }

Answer 2

IDirectSoundCapture是wince的 不是win7的。

Answer 3

你可以直接使用或者参考naudio 开源项目http://naudio.codeplex.com/

Answer 4

或者参考这个帖子http://topic.csdn.net/t/20040123/01/2679333.html