问题描述
我最近将我的大型MFC Visual C ++应用程序转换为Visual Studio 2017.它似乎转换好了它似乎工作和运行正常，但我有一些奇怪的问题，因为。一个问题是，当在调试模式下运行我的应用程序时，每当我做几乎涉及打开或关闭或在窗口之间切换的任何事情时，我会在输出窗口（调试选项卡）中获得大量这样的消息：
I recently converted my large MFC Visual C++ application to Visual Studio 2017. It seemed to convert OK and it seems to work and run OK, but I have had some weird problems since. One issue is that when running my app in Debug mode, I get a ton of messages like this in the Output Window (debug tab) whenever I do almost anything which involves opening or closing or switching between windows:
windows\dwm\dwmapi\attribute.cpp(92)\dwmapi.dll!65D13CF4: (caller: 695790ED) ReturnHr(322) tid(324) 80070006 The handle is invalid.
windows\dwm\dwmapi\attribute.cpp(92)\dwmapi.dll!65D13CF4: (caller: 695790ED) ReturnHr(323) tid(324) 80070006 The handle is invalid.
windows\dwm\dwmapi\attribute.cpp(92)\dwmapi.dll!65D13CF4: (caller: 695790ED) ReturnHr(324) tid(324) 80070006 The handle is invalid.
windows\dwm\dwmapi\attribute.cpp(92)\dwmapi.dll!65D13CF4: (caller: 695790ED) ReturnHr(325) tid(324) 80070006 The handle is invalid.
windows\dwm\dwmapi\attribute.cpp(92)\dwmapi.dll!65D13CF4: (caller: 695790ED) ReturnHr(326) tid(324) 80070006 The handle is invalid.
windows\dwm\dwmapi\attribute.cpp(92)\dwmapi.dll!65D13CF4: (caller: 695790ED) ReturnHr(327) tid(324) 80070006 The handle is invalid.
windows\dwm\dwmapi\attribute.cpp(92)\dwmapi.dll!65D13CF4: (caller: 695790ED) ReturnHr(328) tid(324) 80070006 The handle is invalid.
windows\dwm\dwmapi\attribute.cpp(92)\dwmapi.dll!65D13CF4: (caller: 695790ED) ReturnHr(329) tid(324) 80070006 The handle is invalid.
windows\dwm\dwmapi\attribute.cpp(92)\dwmapi.dll!65D13CF4: (caller: 695790ED) ReturnHr(330) tid(324) 80070006 The handle is invalid.
windows\dwm\dwmapi\attribute.cpp(92)\dwmapi.dll!65D13CF4: (caller: 695790ED) ReturnHr(331) tid(324) 80070006 The handle is invalid.他们似乎没有停止任何工作。但我很高兴得到这么多人。据我所知，他们来自Windows的内心深处。例如，我出现两个只是为了从CMainFrame成员函数中调用 DrawMenuBar（）;
They don't seem to stop anything working. But I'm not happy to be getting so many of them. As far as I can see, they're coming from deep in the bowels of Windows. For example I get two appearing just for callingDrawMenuBar();
。 ; CWnd :: DrawMenuBar定义如下：
from within a CMainFrame member function. CWnd::DrawMenuBar is defined like this:
_AFXWIN_INLINE void CWnd::DrawMenuBar()
{ ASSERT(::IsWindow(m_hWnd)); ::DrawMenuBar(m_hWnd); }所以它真的是:: DrawMenuBar（m_hWnd）;这导致消息被输出。我确定m_hWnd没有任何问题，或者应用程序根本无法正常工作。
So it's really ::DrawMenuBar(m_hWnd); that is causing the messages to be output. I'm sure there can't be anything wrong with m_hWnd or the application wouldn't work at all.
有人建议吗？
Simon
推荐答案
>据我所知，他们来自在Windows的内部深处。
>As far as I can see, they're coming from deep in the bowels of Windows.
你在Windows 10上调试吗？
Are you debugging on Windows 10?
戴夫