vc怎样在程序崩溃的前，把需要的需要的数据保存下来

我想求教大家，怎样在程序崩溃的前，把需要的需要的数据保存下来，
或者怎样才能知道，程序要崩溃了………………

一般可以调用SetUnhandledExceptionFilter 捕获dump

LONG WINAPI MyUnhandledExceptionFilter(PEXCEPTION_POINTERS pExcepPointer)
{
    MINIDUMP_EXCEPTION_INFORMATION excepInfo = {GetCurrentThreadId(), pExcepPointer, FALSE};

    HANDLE hFile = CreateFileW(L"minidump.dmp",
                               GENERIC_READ | GENERIC_WRITE,
                               0,
                               NULL,
                               CREATE_ALWAYS,
                               FILE_ATTRIBUTE_NORMAL,
                               NULL);

    if (hFile != INVALID_HANDLE_VALUE)
    {
        if (MiniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(), hFile, MiniDumpNormal, &excepInfo, NULL, NULL))
        {
            printf("Create dump success \n\n");
        }
        CloseHandle(hFile);
    }

    printf("ErrorCode:%08X Address:%08X \n\n",
           pExcepPointer->ExceptionRecord->ExceptionCode,
           pExcepPointer->ExceptionRecord->ExceptionAddress);

    return StackTrace(pExcepPointer->ContextRecord);
}