Re: function not found in DLL

From:
"AliR \(VC++ MVP\)" <AliR@online.nospam>
Newsgroups:
microsoft.public.vc.mfc
Date:
Mon, 24 Nov 2008 14:51:19 -0600
Message-ID:
<HtEWk.9482$ZP4.2951@nlpi067.nbdc.sbc.com>
Beside what Giovanni pointed out, are you sure you don't have a dll
mismatch. Meaning that your exe is loading a different dll that what you
think it is loading. Do a search for your dll's name and see how many there
are on your system.

AliR.

"BoHuang" <BoHuang@discussions.microsoft.com> wrote in message
news:19623A4E-698D-4905-B783-5C3AF7C6DA77@microsoft.com...

Specifically, at launching the main program, I get error window:

"The procedure entry point
?function1@RTRTwrapper@@UAEXV$SomeStruct@M@@@Z could not be located in the
DLL RTRT_dll.dll."

Basically, I have an interface class and a class that implements it built
into a dll. In the example code below DLL_IMPORT_EXPORT is either
_declspec(dllexport) at the DLL project, and _declspec(dllimport) when the
DLL is used by the main project.

Class DLL_IMPORT_EXPORT MyInterface
{
Virtual void function1(int param) = 0;
Virtual void function2(int param) = 0;
};

Class DLL_IMPORT_EXPORT MyClass : public MyInterface
{
Void function1(SomeStruct param)
{
//body. Can be null
}

void function2(SomeStruct param)
{
//body. Can be null
}

};

I ran Dependency Walker and other programs and do see function1() exists
in
the DLL.

The link
http://www.codeproject.com/KB/cpp/howto_export_cpp_classes.aspx#CppMatureApproach
Giovanni Dicanion helpfully provided in my other post mentions my
situation
but I have yet to see any pitfall I may have missed. What am I doing
wrong?

Thanks

Bo

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