MFC pDl->OnSend(nErrorCode);

出现如下问题
Run-Time Check Failure #0 - The value of ESP was not properly saved across a function call. This is usually a result of calling a function declared with one calling convention with a function pointer declared with a different calling convention.

m_pMainWnd是否是CAutoNavDialog类型？如果类型不匹配会遇到这个运行时检查。