WebBrowser静音(静Flash声音及刷新出现的哒哒哒声音)

        static class NativeMethods

        {

            [DllImport("winmm.dll", EntryPoint = "waveOutSetVolume")]

            public static extern int WaveOutSetVolume(IntPtr hwo, uint dwVolume);



        }

调用：

NativeMethods.WaveOutSetVolume(IntPtr.Zero,音量大小)

windows7下测试通过，因为win7有增强型音量控制， 不清楚xp下行不行， 待会虚拟机上测试。



禁止webbrowser点击、刷新时出现的声音。 

 public static class UnmanagedCode

    {



        private const int FEATURE_DISABLE_NAVIGATION_SOUNDS = 21;

        private const int SET_FEATURE_ON_THREAD = 0x00000001;

        private const int SET_FEATURE_ON_PROCESS = 0x00000002;

        private const int SET_FEATURE_IN_REGISTRY = 0x00000004;

        private const int SET_FEATURE_ON_THREAD_LOCALMACHINE = 0x00000008;

        private const int SET_FEATURE_ON_THREAD_INTRANET = 0x00000010;

        private const int SET_FEATURE_ON_THREAD_TRUSTED = 0x00000020;

        private const int SET_FEATURE_ON_THREAD_INTERNET = 0x00000040;

        private const int SET_FEATURE_ON_THREAD_RESTRICTED = 0x00000080;



        [DllImport("urlmon.dll")]

        [PreserveSig]

        [return: MarshalAs(UnmanagedType.Error)]

        public static extern int CoInternetSetFeatureEnabled(int FeatureEntry, [MarshalAs(UnmanagedType.U4)] int dwFlags, bool fEnable);

        public static void DisableSound()

        {

            UnmanagedCode.CoInternetSetFeatureEnabled(FEATURE_DISABLE_NAVIGATION_SOUNDS, SET_FEATURE_ON_THREAD, true);

            UnmanagedCode.CoInternetSetFeatureEnabled(FEATURE_DISABLE_NAVIGATION_SOUNDS, SET_FEATURE_ON_PROCESS, true);

            UnmanagedCode.CoInternetSetFeatureEnabled(FEATURE_DISABLE_NAVIGATION_SOUNDS, SET_FEATURE_IN_REGISTRY, true);

            UnmanagedCode.CoInternetSetFeatureEnabled(FEATURE_DISABLE_NAVIGATION_SOUNDS, SET_FEATURE_ON_THREAD_LOCALMACHINE, true);

            UnmanagedCode.CoInternetSetFeatureEnabled(FEATURE_DISABLE_NAVIGATION_SOUNDS, SET_FEATURE_ON_THREAD_INTRANET, true);

            UnmanagedCode.CoInternetSetFeatureEnabled(FEATURE_DISABLE_NAVIGATION_SOUNDS, SET_FEATURE_ON_THREAD_TRUSTED, true);

            UnmanagedCode.CoInternetSetFeatureEnabled(FEATURE_DISABLE_NAVIGATION_SOUNDS, SET_FEATURE_ON_THREAD_INTERNET, true);

            UnmanagedCode.CoInternetSetFeatureEnabled(FEATURE_DISABLE_NAVIGATION_SOUNDS, SET_FEATURE_ON_THREAD_RESTRICTED, true);

        }

    }

调用： UnmanagedCode.DisableSound();

 

就可以了。