ATL: What is the difference between the _ATL_DEBUG_REFCOUNT and _ATL_DEBUG_INTERFACES macros?

I have just always used _ATL_DEBUG_INTERFACES and never really considered using _ATL_DEBUG_REFCOUNT.  After investigating this further, this is what I found (referring to ATL v7.1): From Atldef.h: #ifdef _ATL_DEBUG_REFCOUNT#ifndef _ATL_DEBUG_INTERFACES#define _ATL_DEBUG_INTERFACES#endif#endif So, if you use _ATL_DEBUG_REFCOUNT, it is going to automatically define _ATL_DEBUG_INTERFACES for you if you haven’t done so already.  This is the only…

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