Is there a macro defined when IntelliSense is parsing?

Question

Every compiler has a macro like __BORLANDC__ defined that enables the programmer to activate or deactivate certain behaviour or workarounds.

Is such a macro defined while IntelliSense parses files so I can activate workarounds for bugs?

#if defined __INTELLISENSE__
#define SOMETHING
#endif

Answer 1

Yes. It's called __INTELLISENSE__, as you've guessed.

#ifdef __INTELLISENSE__
// ...
#endif