Question

我有一个事件，当被解雇时：

htmlView.DocumentText = contentArea.Text;

问题是这个事件被解雇了很多，我得到了令人讨厌的IE“点击噪音”。我已经看到了解决方案HowTo Disable WebBrowser 'Click Sound' in your app only和另一个，但我对C Sharp很新（仅使用它几个小时），我不确定是什么：

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);

...含义。我在哪里放这个代码？对不起，我是C Sharp和Visual Studio的菜鸟，非常感谢新手能够理解的帮助。

谢谢！

Answer 1

您可以将其置于静态类中，并将CoInternetSetFeatureEnabled方法设为公共，或者在必要时从更可用的表单转换参数后添加另一个调用它的桥接方法。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());
        }
    }

如何在C Sharp中使用WebBrowser元素禁用Click Sound？

2 个答案: