DestroyWindow 与 线程 有关系

[山雨晴空]

最近用destroywindow方法发现的怪问题.

大家知道从程序的执行情况看： 调用destroywindow会触发 OnDestroy消息。可是跟踪在代码里却发

现VC的CAll stack却没用 destroywindow. 但是断点设在destroywindow后，可以从OnDestroy返回到

该断点。

难道OnDestroy使用了另外一个线程？还是vc CAll stack有问题。 这样对MFC程序的跟踪很不利？

不知遇到相同的问题?

[feiniaoliang]

DestroyWindow is a place holder for performing cleanup. Because DestroyWindow is a virtual function, it is shown in any CWnd-derived class in ClassWizard. But even though you override this function in your CWnd-derived class, DestroyWindow is not necessarily called. If DestroyWindow is not called in the MFC code, then you have to explicitly call it in your own code if you want it to be called.

Assume, for example, you have overridden DestroyWindow in a CView-derived class. Since MFC source code does not call DestroyWindow in any of its CFrameWnd-derived classes, your overridden DestroyWindow will not be called unless you call it explicitly

[Ah]

DestoryWindow应该只是发了条消息给窗口而已