Getlasterror ()/errno-poor memory

YesterdayCodeThere is always a problem during running, because Ace (Adaptive Communication Environment) library is used, and macro (macro) is used in many places, which is inconvenient for debugging. In fact, I only want to know the value of getlasterror () or errno. I think VC debugger supports a pseudo register to view this value. After thinking about it for a while, I had to google it. Remember it here, and it will be used when we commit another Alzheimer's disease, haha.

 

It's really easy to add "@ Err" to watch. It works very well, especially when many Windows functions are called.