【转帖】problem with using and questions about i
 

problem with "using" and questions about it
problem with "using" and questions about it
the sample documentation says to add this into your class that is derived from the systemservices:
protected:
using exsystemservices:perator new;
using exsystemservices:perator delete;
however, the sample mfc applications provided do it like this:
protected:
using cwinapp:perator new;
using cwinapp:perator delete;
please explain to me why the change in the code? i have used cwinapp because the sample does. but should i be using exsystemservices?
also, when i include these lines into my application class header file, my application class is no longer visible in the classview. is it possible to prevent that from happening?
thank you.
andrew