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MFC ERROR GetLastError

 1 void CStockServerDlg::ErrorExit(LPTSTR lpszFunction)    //错误函数 2 { 3     // Retrieve the system error message for the last-error code 4  5     LPVOID lpMsgBuf; 6     LPVOID lpDisplayBuf; 7     DWORD dw = GetLastError();  8      9     FormatMessage(10         FORMAT_MESSAGE_ALLOCATE_BUFFER | 11         FORMAT_MESSAGE_FROM_SYSTEM |12         FORMAT_MESSAGE_IGNORE_INSERTS,13         NULL,14         dw,15         MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),16         (LPTSTR) &lpMsgBuf,17         0, NULL );18 19     // Display the error message and exit the process20 21     lpDisplayBuf = (LPVOID)LocalAlloc(LMEM_ZEROINIT, 22         (lstrlen((LPCTSTR)lpMsgBuf)+lstrlen((LPCTSTR)lpszFunction)+40)*sizeof(TCHAR)); 23     StringCchPrintf((LPTSTR)lpDisplayBuf, 24         LocalSize(lpDisplayBuf),25         TEXT("%s failed with error %d: %s"), 26         lpszFunction, dw, lpMsgBuf); 27     ::MessageBox(NULL, (LPCTSTR)lpDisplayBuf, TEXT("Error"), MB_OK); 28     LocalFree(lpMsgBuf);29     LocalFree(lpDisplayBuf);30     ExitProcess(dw);31 }32 33 //调用它34         CStockServerDlg* pError =new CStockServerDlg();35         pError->ErrorExit(TEXT("Create"));36         delete pError;    //避免其成为"野指针"37         pError = NULL;    

 

MFC ERROR GetLastError