Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!batcomputer!caen!zaphod.mps.ohio-state.edu!mips!spool.mu.edu!uunet!ns-mx!ccad.uiowa.edu!cadsi From: cadsi@ccad.uiowa.edu (CADSI) Newsgroups: comp.windows.ms.programmer Subject: Re: DLL's, _export and C++ classes in BC++ Message-ID: <1991May17.023332.8673@ccad.uiowa.edu> Date: 17 May 91 02:33:32 GMT References: <42360@cup.portal.com> Distribution: usa Organization: CAD-Research, U. of Iowa, Iowa City, Iowa Lines: 34 From article <42360@cup.portal.com>, by David_Dave_Tamashiro@cup.portal.com: > This might be a dumb answer, but did you look at the dlldemo.exe that > is included with BC++? Maybe that will have your answer. > > > Dave Yes I had. BUT, I think I solved it. I forgot to put the _export keyword on the actual methods in the source files. I did put the _export on the class for the DLL and huge for outsiders. BUT, like a dope, I neglected the actual method: _HashINT32 HashTable::lookup(...) is really supposed to be: _HashINT32 _export HashTable::lookup(...) Now, Mr. Borland out there, the linker was not exactly helpfull since it only reported that unsigned long HashTable::lookup(unsigned long) was undefined (I have _HashINT32 typedefs), not unsigned long _export HashTable::lookup(unsigned long) I know how it is though, but think on it. |----------------------------------------------------------------------------| |Tom Hite | The views expressed by me | |Manager, Product development | are mine, not necessarily | |CADSI (Computer Aided Design Software Inc. | the views of CADSI. | |----------------------------------------------------------------------------|