__stdcall / CALLBACK

From: Chrynne Schumptze (ChrynneSchumptze_at_discussions.microsoft.com)
Date: 09/15/04 

Date: Wed, 15 Sep 2004 09:01:04 -0700

Hi
I'm trying to make some functionality which will operate in a similar way to
the EnumWindows function, and I've got a function call defined as

typedef BOOL (CALLBACK *MATCHPROC)(_TCHAR*);

few questions:
1) I've noticed that CALLBACK is defined as __stdcall, in windows.h. If I
include <windows.h> and use the CALLBACK syntax, it works, but if I don't
include <windows.h> and use __stdcall then it gives "C2059: syntax error:
__stdcall".
Oddly, if I *don't* include windows.h and use __stdcall , that's also fine.
Why is this?

2) Is CALLBACK necessary? In order to make the called function "clean the
stack itself", is that right? 

-- 
-----------------------------------
Gubarsky's Law of Cybernetic Entomology:
There's always at least one more bug.

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