C++ Newbie - What have I done wrong?

[WeePecky]

I am wanting to use the exported function "SendFax".

When I call this function it returns 15, and nothing else happens.
I have to admit defeat here.

Please help.
Code follows...

Wee!

// The following ifdef block is the standard way of creating macros which make exporting 
// from a DLL simpler. All files within this DLL are compiled with the ENZ_FAXING_EXPORTS
// symbol defined on the command line. this symbol should not be defined on any project
// that uses this DLL. This way any other project whose source files include this file see 
// ENZ_FAXING_API functions as being imported from a DLL, wheras this DLL sees symbols
// defined with this macro as being exported.

#ifdef ENZ_FAXING_EXPORTS
#define ENZ_FAXING_API __declspec(dllexport)
#else
#define ENZ_FAXING_API __declspec(dllimport)
#endif

// This class is exported from the ENZ_Faxing.dll
class ENZ_FAXING_API CENZ_Faxing {
public:
	
	CENZ_Faxing();

	//properties
	char* FaxNumber;

	// TODO: add your methods here
	char* SetFaxNumber(char* thisFaxNumber);
	char* GetFaxNumber();
};

extern ENZ_FAXING_API int nENZ_Faxing;

ENZ_FAXING_API int fnENZ_Faxing(void);




// ENZ_Faxing.cpp : Defines the entry point for the DLL application.
//

#include "stdafx.h"
#include "ENZ_Faxing.h"
#include "winfax.h"
#include "fstream.h"
#include "stdio.h"


BOOL APIENTRY DllMain( HANDLE hModule, 
                       DWORD  ul_reason_for_call, 
                       LPVOID lpReserved
					 )
{
    switch (ul_reason_for_call)
	{
		case DLL_PROCESS_ATTACH:
		case DLL_THREAD_ATTACH:
		case DLL_THREAD_DETACH:
		case DLL_PROCESS_DETACH:
			break;
    }
    return TRUE;
}

// This is the constructor of a class that has been exported.
// see ENZ_Faxing.h for the class definition
CENZ_Faxing::CENZ_Faxing()
{ 
	return; 
}

char* CENZ_Faxing::SetFaxNumber(char* thisFaxNumber)
{
	return thisFaxNumber;
};

char* CENZ_Faxing::GetFaxNumber()
{
	return FaxNumber;
};

ENZ_FAXING_API int SendFax(char* thisFaxNumber, int DEBUG)
{
		int retVal;
		CENZ_Faxing FaxApp;	
		FILE *thisFile;
		char* output = "";
		
		if (DEBUG == 1) 
		{
			// Open a file for outputting debug information.
			if ((thisFile = fopen("c:\\temp\\debug.log","r+")) == NULL)
			{
				return 20;
			}
			else
			{
				// Write to the file 
				fprintf(thisFile, "FaxApp Object has been declared ok.\n" );
			}
		};
		
		if (FaxApp.FaxNumber == NULL)
		{
			FaxApp.FaxNumber = FaxApp.SetFaxNumber(thisFaxNumber);
		};

		if( DEBUG==1 )
		{	// Write to the file 
			fprintf(thisFile, "Fax number has been set ok\n");
		};

		FAX_PRINT_INFO fpi;
		fpi.RecipientNumber = FaxApp.GetFaxNumber();
		fpi.SizeOfStruct=sizeof(FAX_PRINT_INFO);

		if(DEBUG==1)
		{
			// Write to the file 
			fprintf(thisFile, "Process has initialised ok\n");
		};

		DWORD nJobID;
		FAX_CONTEXT_INFO fci;
		fci.SizeOfStruct=sizeof(FAX_CONTEXT_INFO);

		retVal = FaxStartPrintJob(NULL,&fpi,&nJobID,&fci);

		if (DEBUG==1)
		{
			fprintf(thisFile, "FaxStartPrintJob returned &d\n", retVal); 
		};
		
		retVal = EndDoc(NULL);
		
		if (DEBUG==1)
		{
			fprintf(thisFile, "EndDoc returned %d\n",retVal);

			//Close the file
			fclose(thisFile);
		}
		return 1;
}