cpp里为什么线程不能在包装函数里？？

void WINAPI CMySocket::OnReceive1(LPVOID pParam){
   //__try
   {
       CDtlsSocket::OnReceive(pParam);
   }
   //__except (CreateMiniDump(GetExceptionInformation()), EXCEPTION_EXECUTE_HANDLER)
   {

   }
}

/* 接收函数 */
void WINAPI CMySocket::OnReceive(LPVOID pParam)
{
   __try
   {