While debugging the macros, I could observe that, all the arguments are
passed by reference to a function. Is there a possibility to call by
value?
Basically, I want to retain the value of a variable before and after
the function call. The function can take a copy and modify the value of
it, but it should not change the value of the originally passed
variable. How exactly it can be done?

Please ignore my post.

I declared the argument as 'ByVal' and it started working as I wanted.
Thanks!