Macro autocomplete from local variable in header

[omerbguclu]

Hey,

As I say in title, auto completion at macros does not work.

But it works at everywhere except macros. Is this is a bug or expected behavior ?

[sean-mcmanus]

This is somewhat "by design" or an oversight in design. VS doesn't auto-invoke completion in the #define case because it's likely the user is defining something new, but allows manual invoking of completion, which our extension doesn't implement. So we'll track this as a feature request.

[YalandHong]

I think it is (at least partial) duplicate of #3927