From: jens DOT yllman AT uniweb DOT se (Jens Yllman) Subject: Re: DLL help needed 10 Nov 1998 04:14:26 -0800 Message-ID: <3646EB36.35E244A9.cygnus.gnu-win32@uniweb.se> References: <19981108103349 DOT 9835 DOT qmail AT findmail DOT com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: Carlos Albar-Diaz , gnu-win32 AT cygnus DOT com Hello, I'm quite new to use gcc to compile on the win32 platform. So I'm not sure I can help you. But one of the big problems is namemangling. Especially when we compile C++ programs. That's why you use the extern "C" syntax on functions that should use C namemangling. But when it is win32 functions they should be using pascal namemangling and parameter passing. This is only if the system is to call the function. And probably MS Excel whan the pascal namemangling. And what I understand is that __stdcall is used to get pascal namemangling and parameter passing. What exactly is the problem? Do you get any error messages? How does the names look in the .dll? Have you exported the functions? I'm not sure the __stdcall does that. I guess you link a .def file with the .dll to export the functions. Have you looked att the site for mingw32??? Jens Yllman Carlos Albar-Diaz wrote: > > I am not able to use my mingw32-built DLLs from MS Excel. The problem seems to be the DLLs need to use the __stdcall convention, and the instructions/makefiles I have are for _cdecl convention. > > How do I make a dll from an .o file that contains a function defined woth __stdcall? How do I find out the mangling of the function name? Mumit's makefiles do all this OK until I put __stdcall in the function. > > I have browsed the files but none of the "recipes" I saw work with __stdcall. > > I will greatly appreciate your help. > > Carlos > > ----- > Free e-mail group hosting at http://www.eGroups.com/ > - > For help on using this list (especially unsubscribing), send a message to > "gnu-win32-request AT cygnus DOT com" with one line of text: "help". ------------------------------------------------------------ Uniweb AB Phone: +46 8 626 42 00 P O Box 745 FAX: +46 8 626 42 01 S-191 27 SOLLENTUNA SWEDEN http://www.uniweb.se/ - For help on using this list (especially unsubscribing), send a message to "gnu-win32-request AT cygnus DOT com" with one line of text: "help".