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Re: mathlink compile problem

• To: mathgroup at smc.vnet.net
• Subject: [mg28162] Re: mathlink compile problem
• From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
• Date: Tue, 3 Apr 2001 02:37:41 -0400 (EDT)
• Organization: Universitaet Leipzig
• References: <9a1lis$acd@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

Hi,

the syntax for Windows applications is 

#if defined(__WIN32__) || defined(WIN32_)
#  if MLVERSION < 3

int PASCAL WinMain(HANDLE hinstCurrent, HANDLE hinstPrevious,
                   LPSTR lpszCmdLine, int nCmdShow)

  { char buff[512];
    char FAR *argv[32];
    int argc;

	 if(!MLInitializeIcon(hinstCurrent,nCmdShow)) return 1;
	 argc=MLStringToArgv(lpszCmdLine,buff,argv,32);
	 return MLMain(argc,argv);
  }

#  else

int PASCAL WinMain(HANDLE hinstCurrent, HANDLE hinstPrevious,

		   LPSTR lpszCmdLine, int nCmdShow)

  {

    char buff[512];
    char FAR *buff_start=buff;
    char FAR *argv[32];
    char FAR * FAR * argv_end=argv+32;

    if(!MLInitializeIcon(hinstCurrent,nCmdShow)) return 1;
    MLScanString(argv,&argv_end,&lpszCmdLine,&buff_start);
    return MLMain(argv_end-argv,argv);
  }

#  endif

#else

int main(int argc, char *argv[]) {

  return MLMain(argc,argv);
 }

#endif

Microsoft has removed the good old main() function, and
only console programs have a main() and commandline arguments.
GUI programs *must* call WinMain().

Regards
  Jens

Lawrence Walker wrote:
> 
> Hi,
> 
> I am using Microsoft Visual C++ 6.0 under NT 4.0 to compile
> a mathlink program.  I first attempted compiling using
> "Win32 Application" per the Development Kit documentation.
> I get the following error.
> 
>      "mpreping..."
>      Compiling...
>      search.c
>      searchtm.c
>      Linking...
>      LIBCD.lib(wincrt0.obj) : error LNK2001: unresolved
>      external symbol _WinMain@16
>      Debug/Search.exe : fatal error LNK1120: 1
>      unresolved externals
>      Error executing link.exe.
> 
>      Search.exe - 2 error(s), 0 warning(s)
> 
> However, when I compile using "Win32 Console Application"
> everything compiles ok.  This means the console will pop up
> when I link to the mathlink program.  Does anyone know how
> to get Mathlink to work using the "Win32 Application"
> setting?
> 
> Thanks,
> Lawrence
> 
> --
> 
> ------------------------------------------------------------
> 
>      (\___/)     The fear of the LORD is the beginning of
>      (o\ /o)     wisdom: a good understanding have all they
>     /|:.V.:|\    that do his commandments: his praise
>     \\::::://    endureth for ever.              Psa 111:10
> -----`"" ""`------------------------------------------------
> 
>         Lawrence A. Walker Jr., M.Eng./Ph.D. Candidate
>                    Morgan State University
>           Clarence M. Mitchell School of Engineering
>  COMSARE (Center Of Microwave/Satellite And RF Engineering)
>            Rm: 306-Schafer     Phone: (443)885-1453
> ------------------------------------------------------------