Re: function in DLL

From:
"Alexander Grigoriev" <alegr@earthlink.net>
Newsgroups:
microsoft.public.vc.language
Date:
Sat, 30 Sep 2006 20:46:16 -0700
Message-ID:
<eUVLcvQ5GHA.4616@TK2MSFTNGP05.phx.gbl>
You need to read some decent book on C basics, or get some real training.

You cannot return a pointer to a local array. It becomes invalid as soon as
you leave the function.
Note that "LPTSTR Answer(res);" is extraneous. You don't gain anything by
assigning the pointer to the intermediate variable.

"--== Alain ==--" <nospam@noemail.com> wrote in message
news:OJS4MTM5GHA.2464@TK2MSFTNGP06.phx.gbl...

Hi,

I'm still working on my DLL and is function to extract strings from the
stringtable stored in the DLL.

it looks like that :
// -- mydll.cpp
extern "C" __declspec(dllexport) LPTSTR GetString(int Index)
{
 TCHAR res[2048];
 ::LoadString(GetModuleHandle(NULL),Index, res,
sizeof(res)/sizeof(TCHAR));
 LPTSTR Answer(res);
 return((Answer));
}
// -- mydll.h
extern "C" __declspec(dllexport) LPTSTR GetString(int Index);

however, on code --> ::LoadString(GetModuleHandle(NULL),Index, res,
sizeof(res)/sizeof(TCHAR));
res is always empty... i guess that issue is with getModuleHandle.
However, after reading some post on internet, it seems correct...so where
is the mistake ?

thx,

Al.

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