🚀 go-pugleaf

I have problem calling a routine in a DLL when the DLL is loaded
using LoadLibrary.

Here is the DLL source code in its entirely.

    #include <windows.h>
    int FAR PASCAL LibMain( HANDLE hInstance, WORD wDataSegment,
                                   WORD wHeapSize, LPSTR lpszCmdLine )
    {
        if ( wHeapSize != 0 )
	        UnlockData( 0 );
        return 1;
    }

    BOOL FAR PASCAL MyFunction (char far *theString) /* this functions is */
    {                                            /* exported in .DEF */
         return 1;
    }


And the main executable source:

    #include <owl.h>
    int PASCAL WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
                       LPSTR lpCmdLine, int nCmdShow)
    {
        HINSTANCE DLLInstance;
        BOOL FAR (*MyFunctionFunc)(char far  *theString);
        DLLInstance = LoadLibrary("dll1.dll");
        (FARPROC) MyFunctionFunc =GetProcAddress(DLLInstance, "MyFunction");
        (*MyFunctionFunc)("In the MAIN");
        FreeLibrary(DLLInstance);

        TApplication MyApp("Sample Program", hInstance, hPrevInstance,
               lpCmdLine, nCmdShow);
        MyApp.Run();
        return MyApp.Status;
    }

When I run the main program, everything looks OK and MyFunction in DLL
is actually called but I get a General Protection Fault. The error happens
inside MyApp.Run() call. If I change MyFunction argument to int the
there is no problem (but I really need it to be char*).

I have a short term and long term question.

STQ: What is wrong with the above programs?
LTQ: What is a good refrence book for DLL programming?

Post or mail.

Thanks.

Ahmad
ahmad@norooz.b17a.ingr.com