Re: LoadLibrary() fails in vista but works fine on XP

From:

"Jonathan Wood" <jwood@softcircuits.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Wed, 12 Nov 2008 18:33:55 -0700

Message-ID:

<#xuVp$SRJHA.3876@TK2MSFTNGP04.phx.gbl>

Eh? hInst in this example is the return value of LoadLibrary (why it's set
to NULL first is beyond me).

And according to the documentation about the return value:

If the function fails, the return value is NULL. To get extended error
information, call GetLastError.

--
Jonathan Wood
SoftCircuits Programming
http://www.softcircuits.com

"Joseph M. Newcomer" <newcomer@flounder.com> wrote in message
news:tpnmh49fbnkmcebeeart75gujak1ceguut@4ax.com...

See below...
On Wed, 12 Nov 2008 13:36:03 -0500, Joel Lucsy <jjlucsy@gmail.com> wrote:

KK wrote:

HINSTANCE hInst = NULL; //
hInst = LoadLibrary("ThirdParty.dll");

You need to ask what the error was:

DWORD Err = GetLastError();

****
Note that GetLastError only has meaning if hInst is NULL; if it is
non-NULL, GetLastError
is undefined for LoadLibrary.
joe
****

Err will then have a value that you can use ErrorLookup from the Tools
menu to tell you what it means.

Joseph M. Newcomer [MVP]
email: newcomer@flounder.com
Web: http://www.flounder.com
MVP Tips: http://www.flounder.com/mvp_tips.htm