Re: A question on __declspec(dllimport) and the Windows APIs.

From:

"Doug Harrison [MVP]" <dsh@mvps.org>

Newsgroups:

microsoft.public.vc.mfc

Date:

Wed, 08 Aug 2007 00:47:37 -0500

Message-ID:

<pvlib3l9effirne0vjas2s99cnvahjobto@4ax.com>

On Tue, 07 Aug 2007 22:34:25 -0700, xmllmx <xmllmx@gmail.com> wrote:

However, Microsoft didn't do this. In the winuser.h, I found the
function is declared:

WINUSERAPI HWND WINAPI GetWindow(__in HWND hWnd, __in UINT uCmd);

Which is identical to HWND __stdcall GetWindow(HWND hWnd, UINT uCmd);

Who is wrong???

Compile with -P and examine the .i file that is produced. I get:

__declspec(dllimport)
HWND
__stdcall
GetWindow(
HWND hWnd,
UINT uCmd);

Rule of thumb: When in doubt, bet on Richter. :)

--
Doug Harrison
Visual C++ MVP- Hide quoted text -

- Show quoted text -

Hi Doug, thank you very much for telling me such an interesting
feature with the compiler.

But i still don't know how the compiler does this. In other words, how
does the compiler know whether a function is a standard Windows API or
not? Could there been any trick here?

There's no trick. The replacement of the WINUSERAPI macro is the
__declspec. The __stdcall comes from the WINAPI macro.

--
Doug Harrison
Visual C++ MVP