关于MFC中CWnd::CreateEx的一点疑惑

[winter_plusplus]

以下是从MFC中复制的代码.
BOOL CWnd::CreateEx(DWORD dwExStyle, LPCTSTR lpszClassName,
LPCTSTR lpszWindowName, DWORD dwStyle,
int x, int y, int nWidth, int nHeight,
HWND hWndParent, HMENU nIDorHMenu, LPVOID lpParam)
{
// allow modification of several common create parameters
CREATESTRUCT cs;
cs.dwExStyle = dwExStyle;
cs.lpszClass = lpszClassName;
cs.lpszName = lpszWindowName;
cs.style = dwStyle;
cs.x = x;
cs.y = y;
cs.cx = nWidth;
cs.cy = nHeight;
cs.hwndParent = hWndParent;
cs.hMenu = nIDorHMenu;
cs.hInstance = AfxGetInstanceHandle();
cs.lpCreateParams = lpParam;

if (!PreCreateWindow(cs))
{
PostNcDestroy();
return FALSE;
}

AfxHookWindowCreate(this);
HWND hWnd = ::CreateWindowEx(cs.dwExStyle, cs.lpszClass,
cs.lpszName, cs.style, cs.x, cs.y, cs.cx, cs.cy,
cs.hwndParent, cs.hMenu, cs.hInstance, cs.lpCreateParams);

#ifdef _DEBUG
if (hWnd == NULL)
{
TRACE1("Warning: Window creation failed: GetLastError returns 0x%8.8X\n",
GetLastError());
}
#endif

if (!AfxUnhookWindowCreate())
PostNcDestroy(); // cleanup if CreateWindowEx fails too soon

if (hWnd == NULL)
return FALSE;
ASSERT(hWnd == m_hWnd); // should have been set in send msg hook
return TRUE;
}

上面函数的最后:ASSERT(hWnd == m_hWnd); // should have been set in send msg hook
问题:他说m_hWnd被赋值,在发送hook消息的时候. 但是阅读上面代码 ,在创建窗口之后根本没有发送这个消息,唯一可能的地方就是"if (!AfxUnhookWindowCreate())",但是我查看了AfxUnhookWindowCreate()函数,也没有发送过什么消息啊.请高手指点......

[winter_plusplus]

还是自己顶一下

[winter_plusplus]

自己顶一下,等高手赐教.......

[winter_plusplus]

都没有人回答,叫我怎么结帖啊!!~~~~~~?

[devinside]

在wincore.cpp的第476行有一个函数
_AfxCbtFilterHook(int code, WPARAM wParam, LPARAM lParam)

AfxHookWindowCreate(this);建的就是它
::CreateWindowEx后(前?忘了)先运行倒上面那个函数在里面会有Attach函数,把hWnd和pWnd连续起来,,具体代码楼主加个断点自己看吧

[winter_plusplus]

谢楼上的兄弟了，再看看。