如何使JAWS屏幕阅读器识别和读取cefsharp ChromiumWebBrowser控件的内容？ [英] How to make JAWS screen reader recognize and read content of cefsharp ChromiumWebBrowser control?

问题描述

我有包含cefsharp ChromiumWebBrowser组件的winforms应用程序。我希望JAWS可以阅读其中的内容。现在，JAWS仅读取主窗口的标题。有什么办法可以做到这一点？我尝试了 force-renderer-accessibility标志，但对我没有帮助。

这是我尝试的代码：

  var settings = new CefSettings（）
 {
 CefCommandLineArgs = {new KeyValuePair< string，string>（ force-renderer-accessibility， true）} 
}; 
 Cef.Initialize（settings，performDependencyCheck：false，browserProcessHandler：null）; 
  

解决方案

按照amaitland的提示，我们找到了以下解决方案。 / p>

禁用MultiThreadedMessageLoop-然后，您需要根据下面的原始示例定期调用DoMessageLoopWork。

  var settings = new CefSettings（）
 {
 MultiThreadedMessageLoop = false 
}; 
 Cef.Initialize（设置）; 
 
浏览器=新的ChromiumWebBrowser（ https://url.com/）; 
 
 var t = new Timer {Interval = 5}; 
 t.Start（）; 
 t.Tick + = t_Tick; 
 
 this.panel1.Controls.Add（浏览器）; 
 
} 
 
 void t_Tick（对象发送者，EventArgs e）
 {
 this.BeginInvoke（（Action）（（）=> Cef。 DoMessageLoopWork（）））; 
} 
  

I have winforms application that contains cefsharp ChromiumWebBrowser component. I want JAWS to read it's content. Now JAWS only read title of main window. Is there any way to achieve this? I tried "force-renderer-accessibility" flag but it didn't help me.

Here is the code i tried:

var settings = new CefSettings()
        {
            CefCommandLineArgs = { new KeyValuePair<string, string>("force-renderer-accessibility", "true") }
        };            
        Cef.Initialize(settings, performDependencyCheck: false, browserProcessHandler: null);

解决方案

Following amaitland's prompting above we found the following solution.

Disable MultiThreadedMessageLoop - you then need to periodically invoke DoMessageLoopWork as per the crude sample below.

        var settings = new CefSettings()
        {
          MultiThreadedMessageLoop = false
        };            
        Cef.Initialize(settings);

        browser = new ChromiumWebBrowser ("https://url.com/");

        var t = new Timer {Interval = 5};
        t.Start();
        t.Tick += t_Tick;

        this.panel1.Controls.Add(browser);

    }

    void t_Tick(object sender, EventArgs e)
    {
        this.BeginInvoke((Action) (() => Cef.DoMessageLoopWork()));
    }

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