webview with pdf embedded crashes on dispose

[dries....@gmail.com]

I have a project with cefsharp, where it crashes on the close on the form (only when embedded pdf is used), and the dispose of the webview is called.

I use foxit pdf reader.

To test: I go to this page with my project: http://pdfobject.com/markup/examples/full-browser-window.html

 

The code where it crashes:

        private void Browser_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (_web_view != null) //_web_view = CefSharp.WinForms.WebView
            {
                _web_view.Dispose(); //CRASHES HERE
                _web_view = null;
            }

        }

 

When i use the c++ example, it doesn't crash: http://www.magpcss.net/cef_downloads/index.php?file=cef_binary_1.1364.1123_windows.zip

 

What i see there in the close event:

    case WM_CLOSE:
      if (g_handler.get()) {
        CefRefPtr<CefBrowser> browser = g_handler->GetBrowser();
        if (browser.get()) {
          // Let the browser window know we are about to destroy it.
          browser->ParentWindowWillClose();
        }
      }
      break;

 

So I edited the cefsharp.winforms code (WebView.h) in the destructor of the WebView to this and compiled and tried this dll:

        ~WebView()
        {
            CefRefPtr<CefBrowser> browser;
            if (TryGetCefBrowser(browser))
            {
                browser->ParentWindowWillClose(); //I added this line
                browser->CloseBrowser();
            }
        }

 

Still the same error, so it seems like the cefsharp crashes (but the c++ example doesn't) somewhere on the dispose, but I can't find out where...

I alsoo tried using the dll's from the c++ project and use them in my c# project, still the same...

[Per Lundberg]

Hi,

Seems a bit tricky. Please make this a formal issue on the GitHub page, we should look into it a bit more. It could be anything unfortunately, but it feels spontaneously like a bug on our behalf...

Best regards,

Per