如何在C Sharp中使用WebBrowser元素禁用“单击声音”？

Question

我被解雇时有一个事件：

htmlView.DocumentText = contentArea.Text;

问题是此事件被触发了很多，我得到了令人讨厌的IE“点击噪音”。 我只在您的应用程序中看到过一个解决方案如何禁用WebBrowser“单击声音”，另一个在我的应用程序中却见过，但是我对C Sharp还是很陌生（仅使用了几个小时），并且不确定：

---

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

---

...手段。 我将代码放在哪里？ 抱歉，我是C Sharp和Visual Studio的新手，很感谢新手可以理解的帮助。

谢谢！

Answer 1

您可以将其放在静态类中，并公开CoInternetSetFeatureEnabled方法，或者添加一个附加的bridge方法，如果需要的话，可以从更可用的形式转换参数后调用该方法。 例如，在第一种情况下，它将是：

public static class UnmanagedCode
{
    private const int FEATURE_DISABLE_NAVIGATION_SOUNDS = 21;
    //etc...

    [DllImport("urlmon.dll")]
    [PreserveSig]
    [return:MarshalAs(UnmanagedType.Error)]
    public static extern int CoInternetSetFeatureEnabled(
        int FeatureEntry,
        [MarshalAs(UnmanagedType.U4)] int dwFlags,
        bool fEnable);
}

Answer 2

谢谢Konamiman！

这是我的最终代码：

---

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 int 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);

            return 1;
        }
    }
 static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {

            UnmanagedCode.disableSound();
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }

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