How to properly close CEF when the MFC dialog box program cr

[fanrongqi]

I am using VS2019 to write code and the CEF version I am using is 101. I created a dialog box project for MFC and created a CEF browser window in the dialog box. When I close the dialog box, I cannot call the doclose() function of CEF, so I cannot close CEF properly. How should I write code?

BOOL CMFCAppApp::InitInstance() I initialize CEF
CefRefPtr<SimpleApp> app(new SimpleApp);

// Initialize CEF.
CefInitialize(main_args, settings, app.get(), sandbox_info);


BOOL CMFCAppDlg::OnInitDialog() I create the browser
info.SetAsChild(m_hWnd, cefRect);


CefBrowserHost::CreateBrowser(info, mCefHandler, "https://www.baidu.com",
browserSettings,
nullptr, nullptr);

[KatrinaS]

Maybe this https://learn.microsoft.com/en-us/cpp/m ... w=msvc-170 Document will help you muddle through

[fanrongqi]

When I call CefShutdown() in void CMFCAppDlg:: OnDestroy() or void CMFCAppDlg:: OnClose(); Whenever there is an exception, I don't know how to trigger the handler's callback to close the cef sub window.

message is ：

[1215/104724.735:FATAL:shutdown_checker.cc(30)] Check failed: !IsCefShutdown(). Object reference incorrectly held at CefShutdown

[magreenblatt]

See CefLifeSpanHandler::DoClose. CefInitialize/CefShutdown needs to be called a single time in your application. Move that out of your dialog class if you intend to display it multiple times.

[magreenblatt]

There are also many examples online if you google “cef mfc example”

[fanrongqi]

I can't find any code that can run, nor can I find a concise tutorial. I can't work well, my code can't close the browser, and sometimes the rendering process keeps running. Cannot be closed. Can someone help me, give me a connection, or a book. I can acquire the correct knowledge.

[finder2]

I also had issues with MFC and CEF because MFC uses different threads for different classes like Doc, App etc.
Finally, i solved all issues and run CefShutdown at ExitInstance()
Have a look at this example https://www.codeproject.com/Articles/11 ... pplication