Re: GetProcAddress Exception in XP

From:

=?Utf-8?B?TVNEZXZlbE9sYXA=?= <MSDevelOlap@discussions.microsoft.com>

Newsgroups:

microsoft.public.vc.language

Date:

Wed, 14 Jun 2006 09:26:02 -0700

Message-ID:

<652F7EAD-2DF5-4A0F-80D2-A3C279FAF3A9@microsoft.com>

The following line is where the library is freed in XP, but not 2000:

if (!lpfnDllFunc18)
FreeLibrary(hCustVerCtrlDLL); //THIS IS WHERE IT IS FREEING THE LIB IN XP

"Igor Tandetnik" wrote:

MSDevelOlap <MSDevelOlap@discussions.microsoft.com> wrote:

I have an application that works in 2000, but is having trouble
linking to a DLL in XP.

Precisely what kind of trouble? What fails, with what error code?
--
With best wishes,
Igor Tandetnik

With sufficient thrust, pigs fly just fine. However, this is not
necessarily a good idea. It is hard to be sure where they are going to
land, and it could be dangerous sitting under them as they fly
overhead. -- RFC 1925

I have an application that works in 2000, but is having trouble
linking to a DLL in XP. The code is as follows:

typedef UINT (*LPFNDLLFUNC18)(long,UINT);
LPFNDLLFUNC18 lpfnDllFunc18;

UINT uiReturnVal;

lpfnDllFunc18 = (LPFNDLLFUNC18)GetProcAddres hCustVerCtrlDLL,"GetMyFunction");

if (!lpfnDllFunc18)
     FreeLibrary(hCustVerCtrlDLL); //THIS IS WHERE IT IS FREEING THE LIB IN XP
else
{
   uiReturnVal = lpfnDllFunc18( 0,0);
   if ( uiReturnVal == 0 ){
       SetLibrary(FALSE);
   } else if ( uiReturnVal == 1 ){
       SetLibrary(TRUE);
   } else {
       SetLibrary(FALSE);
   }
}

What could be causing the differences in 2000 and XP?
What dependencies are there for the GetProcAddress function?

Any help is appreciated.