Question

例外：

Exception thrown at 0x76EBC762 (KernelBase.dll) in MyMFC.exe: 
0x0000071A: The remote procedure call was canceled, or if a call time-out 
was specified, the call timed out.

尝试将CEF集成到MFC程序时遇到问题。

操作系统为windows10，VS2017，cef_binary_73.1.13。

Cef设置如下：

CefSettings settings;
settings.multi_threaded_message_loop = false;
settings.ignore_certificate_errors = true;
settings.remote_debugging_port = 9000;
settings.external_message_pump = true;

CefDoMessageLoopWork在MFC事件循环中运行。

我已经下载了pdb文件。退出程序时调用堆栈：

libcef.dll!content::ScreenlockMonitorDeviceSource::SessionMessageWindow::~SessionMessageWindow() Line 37    C++ Symbols loaded.
libcef.dll!content::ScreenlockMonitorDeviceSource::~ScreenlockMonitorDeviceSource() Line 15 C++ Symbols loaded.
libcef.dll!content::ScreenlockMonitor::~ScreenlockMonitor() Line 25 C++ Symbols loaded.
libcef.dll!std::unique_ptr<content::ScreenlockMonitor,std::default_delete<content::ScreenlockMonitor> >::~unique_ptr() Line 2267    C++ Symbols loaded.
libcef.dll!content::BrowserMainLoop::~BrowserMainLoop() Line 556    C++ Symbols loaded.
libcef.dll!content::BrowserMainLoop::~BrowserMainLoop() Line 552    C++ Symbols loaded.
libcef.dll!content::BrowserMainRunnerImpl::Shutdown() Line 236  C++ Symbols loaded.
libcef.dll!CefMainDelegate::ShutdownBrowser() Line 718  C++ Symbols loaded.
libcef.dll!CefContext::FinalizeShutdown() Line 587  C++ Symbols loaded.
libcef.dll!CefShutdown() Line 272   C++ Symbols loaded.

在破坏SessionMessageWindow对象时，似乎程序异常：

SessionMessageWindow::~SessionMessageWindow() {
  if (window_) {
    ::WTSUnRegisterSessionNotification(window_->hwnd());  <- HERE THROW EXCEPTION!
    window_.reset();
  }
}

我检查了变量window_，它是在CefInitialize内部创建的，它将创建一个用于接收会话更改通知的窗口，然后将其注册到::WTSRegisterSessionNotification(window_->hwnd(), ...)

我用Google搜索了几天，发现了一些有关CefShutdown异常的链接，但是在这种情况下，一切似乎都与众不同，这是由::WTSUnRegisterSessionNotification(window_->hwnd());引起的

有人有什么想法吗？预先感谢。

CefShutdown抛出异常

0 个答案: