Re: function in DLL

From:
"Alex Blekhman" <xfkt@oohay.moc>
Newsgroups:
microsoft.public.vc.language
Date:
Sat, 30 Sep 2006 22:38:15 +0300
Message-ID:
<eww17fM5GHA.3376@TK2MSFTNGP05.phx.gbl>
"--== Alain ==--" wrote:

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 ?


The mistake is that GetModuleHandle(NULL) will return handle
to the module used to create the running process. I.e., your
..EXE file, not .DLL, which contains string table.
 Youy could eliminate `GetString' function at all. Just
store somewhere in main program handle to the .DLL and call
CString::LoadString with this handle passed as first
parameter and string index as second.

HTH
Alex

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