🚀 go-pugleaf

Kevin Johnson wrote:

>void _stdcall Out32(short PortAddress, short data);
>short  _stdcall Inp32(short PortAddress);
>
>- the VC++ dll has and an export table that lists these two functions with
>there ordinal values. I've defined my typedefs as:
>
>   typedef __declspec(dllimport) short Inp32(short PortAddress);
>   typedef __declspec(dllimport) void Out32(short PortAddress, short data);
>
>   Inp32 *Input;
>   Out32 *Output;
>
>-I then call LoadLibrary and GetProcAddress with no problems.  However when
>I call Output and get an "application-defined" exception (code 0c0000029) at
>0x77fb1e0c.
>
>Does anyone have any idea?

Consider the following MAPI example that works for me...
/*MAPI.H*/
typedef ULONG (FAR PASCAL MAPISENDMAIL)(
    LHANDLE lhSession, ULONG ulUIParam,  lpMapiMessage lpMessage,
    FLAGS flFlags, ULONG ulReserved);
typedef MAPISENDMAIL FAR *LPMAPISENDMAIL;
MAPISENDMAIL MAPISendMail;

/*MYAPP.C*/
    LPMAPISENDMAIL	fnMAPISendMail;
hMAPILib = LoadLibrary("MAPI32.DLL");
fnMAPISendMail=(LPMAPISENDMAIL)GetProcAddress(hMAPILib,"MAPISendMail");

I would think as long as you are using LoadLibrary, that you could
just ignore the dllimport stuff and do
typedef short (_stdcall Inp32)(short PortAddress);