error LNK2001: unresolved external symbol

[WeePecky]

Hi,

After searching this forum and trying a number of different possibilities I am posting this problem...

I Have attempted compling the code below which results in:
==============================================

--------------------Configuration: Fax - Win32 Debug--------------------
Linking...
Creating library Debug/Fax.lib and object Debug/Fax.exp
Fax.obj : error LNK2001: unresolved external symbol __imp__FaxStartPrintJobA@16
Debug/Fax.dll : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.

Fax.dll - 2 error(s), 0 warning(s)
===========================================
Any assistance appreciated.

Thanks
Wee!

// Fax.h : main header file for the FAX DLL
//

#if !defined(AFX_FAX_H__FE08ECEA_8B6B_44DA_8E3A_E2C39C72135B__INCLUDED_)
#define AFX_FAX_H__FE08ECEA_8B6B_44DA_8E3A_E2C39C72135B__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#ifndef __AFXWIN_H__
	#error include 'stdafx.h' before including this file for PCH
#endif

#include "resource.h"		// main symbols


#define _FAXLIB_DLLAPI_
#define _FAXLIB_NOAUTOLIB_

// The following will ensure that we are exporting our C++ classes when 
// building the DLL and importing the classes when build an application 
// using this DLL.

#ifdef _FAXLIB_DLLAPI_
    #define FAXLIB_DLLAPI  __declspec( dllexport )
#else
    #define FAXLIB_DLLAPI  __declspec( dllimport )
#endif

// The following will ensure that when building an application (or another
// DLL) using this DLL, the appropriate .LIB file will automatically be used
// when linking.

#ifndef _FAXLIB_NOAUTOLIB_
#ifdef _DEBUG
#pragma comment(lib, "faxlibd.lib")
#else
#pragma comment(lib, "faxlib.lib")
#endif
#endif

/////////////////////////////////////////////////////////////////////////////
// CFaxApp
// See Fax.cpp for the implementation of this class
//

class FAXLIB_DLLAPI CFaxApp : public CWinApp
{
public:
	CString FaxNumber;

	CString GetFaxNumber();
	int CFaxApp::SendFax();
	CString SetFaxNumber(CString thisFaxNumber);
	CFaxApp();

// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CFaxApp)
	//}}AFX_VIRTUAL

	//{{AFX_MSG(CFaxApp)
		// NOTE - the ClassWizard will add and remove member functions here.
		//    DO NOT EDIT what you see in these blocks of generated code !
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};


/////////////////////////////////////////////////////////////////////////////

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_FAX_H__FE08ECEA_8B6B_44DA_8E3A_E2C39C72135B__INCLUDED_)

// Fax.cpp : Defines the initialization routines for the DLL.
//

#include "stdafx.h"
#include "afxv_dll.h"
#include "winfax.h"
#include "Fax.h"
#include "cstring"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

//
//	Note!
//
//		If this DLL is dynamically linked against the MFC
//		DLLs, any functions exported from this DLL which
//		call into MFC must have the AFX_MANAGE_STATE macro
//		added at the very beginning of the function.
//
//		For example:
//
//		extern "C" BOOL PASCAL EXPORT ExportedFunction()
//		{
//			AFX_MANAGE_STATE(AfxGetStaticModuleState());
//			// normal function body here
//		}
//
//		It is very important that this macro appear in each
//		function, prior to any calls into MFC.  This means that
//		it must appear as the first statement within the 
//		function, even before any object variable declarations
//		as their constructors may generate calls into the MFC
//		DLL.
//
//		Please see MFC Technical Notes 33 and 58 for additional
//		details.
//

/////////////////////////////////////////////////////////////////////////////
// CFaxApp

BEGIN_MESSAGE_MAP(CFaxApp, CWinApp)
	//{{AFX_MSG_MAP(CFaxApp)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CFaxApp construction

CFaxApp::CFaxApp()
{
	// TODO: add construction code here,
	// Place all significant initialization in InitInstance
};


/////////////////////////////////////////////////////////////////////////////
// The one and only CFaxApp object

CFaxApp theApp;

CString CFaxApp::SetFaxNumber(CString thisFaxNumber)
{
	return thisFaxNumber;
};


int CFaxApp::SendFax()
{

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

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

	if(FaxStartPrintJob(NULL,&fpi,&nJobID,&fci))
	TRACE("FaxStartPrintJob succeeded\n");
	return 0;
}

CString CFaxApp::GetFaxNumber()
{
	return FaxNumber;
}

[mike200]

It looks like you did not link to WinFax.lib, you only included the header WinFax.h

[WeePecky]

Man that was quick!

[WeePecky]

Works fine - Thanks.
Wee!