web浏览器禁用所有音频输出 - 从在线广播到YouTube [英] Webbrowser disable all audio output - from online radio to youtube
问题描述
我的网页浏览器:
XAML:
//...
xmlns:my="clr-namespace:System.Windows.Forms.Integration;assembly=WindowsFormsIntegration"
//...
<my:WindowsFormsHost Name="windowsFormsHost"/>
背后的C#code:
Code behind C#:
System.Windows.Forms.WebBrowser Browser = new System.Windows.Forms.WebBrowser();
windowsFormsHost.Child = Browser;
我的问题是如何禁用所有的音频输出。
My question is how to disable all audio output.
我发现这一点:
C#:
private const int Feature = 21; //FEATURE_DISABLE_NAVIGATION_SOUNDS
private const int SetFeatureOnProcess = 0x00000002;
[DllImport("urlmon.dll")]
[PreserveSig]
[return: MarshalAs(UnmanagedType.Error)]
static extern int CoInternetSetFeatureEnabled(int featureEntry,
[MarshalAs(UnmanagedType.U4)] int dwFlags,
bool fEnable);
其优良的,但是这code禁止唯一的咔嚓声,所以其在这种情况下,一种无用的。
Its fine, but this code disable only "click" sound, so its kind of useless in this case.
我刚刚从我的应用程序要100%静音,根本没有任何声音。
I just want from my application 100% mute, no sounds at all.
我读过,在这个网页浏览器就需要通过Windows声音来完成,但我真的不能bielieve,我不能在code做到这一点。
I've read that in this webbrowser it need to be done through Windows Sounds, but I cant really bielieve that I cant do this in code.
推荐答案
下面是你如何能轻松做到这一点。不特定于web浏览器,虽然,但做你的要求是什么:我只是从我的应用程序要100%静音,无声音在所有的
Here is how you can do it with ease. Not specific to WebBrowser though, but does what you requested: I just want from my application 100% mute, no sounds at all.
using System;
using System.Runtime.InteropServices;
using System.Windows.Forms;
namespace WinformsWB
{
public partial class Form1 : Form
{
[DllImport("winmm.dll")]
public static extern int waveOutGetVolume(IntPtr h, out uint dwVolume);
[DllImport("winmm.dll")]
public static extern int waveOutSetVolume(IntPtr h, uint dwVolume);
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
// save the current volume
uint _savedVolume;
waveOutGetVolume(IntPtr.Zero, out _savedVolume);
this.FormClosing += delegate
{
// restore the volume upon exit
waveOutSetVolume(IntPtr.Zero, _savedVolume);
};
// mute
waveOutSetVolume(IntPtr.Zero, 0);
this.webBrowser1.Navigate("http://youtube.com");
}
}
}
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