Changing focus leads to increase in memory!!!

[Vivek]

I have observed that when I change the focus (Not minimize)
from my .Net app to some other app and bring the focus
back, the memory used and VM size increases slightly. I
have observed the same behavior for some other .Net apps
also. Why is this happening? Is there a memory leak
somewhere in my app or is it something to do with
framework? Is framework painting my GUI again or something
like that?

 

[AlexS]

It really depends on application.
Before making any conclusions use any of available for you memory profilers
to see if app is really allocating something new.

HTH
Alex