Linking problems with DLL

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   I have created an import lib, using LIB, from a DLL for which I don't have the source. The exports are as follows:

2    _Excel4

3    _Excel4v

4    _LPenHelper

1    _XLCallVer

There are 11 public symbols in the import lib:

4 _Excel4

5 _Excel4v

6 _LPenHelper

7 _XLCallVer

1 __IMPORT_DESCRIPTOR_XLCALL32

2 __NULL_IMPORT_DESCRIPTOR

4 __imp__Excel4

5 __imp__Excel4v

6 __imp__LPenHelper

7 __imp__XLCallVer

3 ⌂XLCALL32_NULL_THUNK_DATA

I declare the the function within an extern "C" block as:

__declspec(dllimport) int __stdcall Excel4v(int xlfn, LPXLOPER operRes, int count, LPXLOPER opers[]);

When I attempt to link the object files that are consuming this declaration I get the following linker error:

error LNK2019: unresolved external symbol __imp__Excel4v@16 referenced in function "public: static bool __cdecl XL::ExcelAddIn::abort(bool)" (?abort@ExcelAddIn@XL@@SA_N_N@Z)

The symbol appears to have an "@16" appended on it when it is formed in the C++ module where it is consumed.

Any constructive ideas on how to get around this?

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kkoster Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 23 December 2004 Status: Offline Points: 1	Post Options Post Reply Quote kkoster Report Post Thanks(0) Quote Reply Topic: Linking problems with DLL Posted: 23 December 2004 at 2:27pm
	I have created an import lib, using LIB, from a DLL for which I don't have the source. The exports are as follows: 2 _Excel4 3 _Excel4v 4 _LPenHelper 1 _XLCallVer There are 11 public symbols in the import lib: 4 _Excel4 5 _Excel4v 6 _LPenHelper 7 _XLCallVer 1 __IMPORT_DESCRIPTOR_XLCALL32 2 __NULL_IMPORT_DESCRIPTOR 4 __imp__Excel4 5 __imp__Excel4v 6 __imp__LPenHelper 7 __imp__XLCallVer 3 ⌂XLCALL32_NULL_THUNK_DATA I declare the the function within an extern "C" block as: __declspec(dllimport) int __stdcall Excel4v(int xlfn, LPXLOPER operRes, int count, LPXLOPER opers[]); When I attempt to link the object files that are consuming this declaration I get the following linker error: error LNK2019: unresolved external symbol __imp__Excel4v@16 referenced in function "public: static bool __cdecl XL::ExcelAddIn::abort(bool)" (?abort@ExcelAddIn@XL@@SA_N_N@Z) The symbol appears to have an "@16" appended on it when it is formed in the C++ module where it is consumed. Any constructive ideas on how to get around this?

abbasmsa Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 15 May 2007 Status: Offline Points: 1	Post Options Post Reply Quote abbasmsa Report Post Thanks(0) Quote Reply Posted: 15 May 2007 at 12:31pm
	On top of your source code, after the include statements, just add the following lines: // dummy functions for XLCall32.lib int far pascal Excel4v(int xlfn, LPXLOPER operRes, int count, LPXLOPER far opers[]) { return 1; } int far _cdecl Excel4(int xlfn, LPXLOPER operRes, int count,... ) { return 1; }