[RESOLVED] DLL using GetProcAddress no exporting performed in DLL

[funkmonkey]

HI,

I am creating a very simple DLL, and I have the LoadLibrary problem temporarily fixed, I now face an issue where GetProcAddress does not find any exported functions. Not sure what the DLL defines may be missing but any input would be greatly appreciated. This is for a very simple/crude timer using Sleep as the timer. Need it for a System Dialog that pops up when obj.click is called in HTML and prevents the program from continuing automation. Looking to use this DLL as a way to press the OK button on the DLG box and move on without human interaction. Below is the DLL code, so if you point out why the functions are not being exported would be greatly appreciated. I do get a 127 error "Procedure not defined", so it is most definatly the DLL.

#define EPIQUTIL_EXPORTS;


#ifdef EPIQUTIL_EXPORTS
#define EPIQUTIL_API __declspec(dllexport)
#else
#define EPIQUTIL_API __declspec(dllimport)
#endif

// The functions needed to interface with VBA EPIQ Utils

// This function must be called before any other function.
extern "C" EPIQUTIL_API void EPIQ_init(const long MyWaitTime);

Suggestions?


UPDATE: Found out that none of the functions are being exported, that would explain GetProcAddress failing. Used DependenciesGui to discover this. So now the question is how do I get them to export? I thought that with __declspec(dllexport) that VC would take care of exporting the functions. Any suggestions to this issue would be greatly appreciated.


UPDATE2: I had MVS generate a DLL with exports and even their own creation does not export a single thing. Help!!

[2kaud]

For info, these are test codes for generating a .dll

mydll.h

#pragma once

#define WIN32_LEAN_AND_MEAN
#include <windows.h>

#ifdef NUM_EXPORT
#define NUM_API extern "C" __declspec(dllexport)
#else
#define NUM_API extern "C" __declspec(dllimport)
#endif

NUM_API int intdouble(int i);

dllmain.cpp

#define NUM_EXPORT
#include "mydll.h"

int intdouble(int i) {
    return i + i;
}

when compiled with VS generates a mydll.dll which exports intdouble.

dumpbin /exports mydll.dll
Microsoft (R) COFF/PE Dumper Version 7.10.6030
Copyright (C) Microsoft Corporation.  All rights reserved.


Dump of file mydll.dll

File Type: DLL

  Section contains the following exports for mydll.dll

    00000000 characteristics
    FFFFFFFF time date stamp
        0.00 version
           1 ordinal base
           1 number of functions
           1 number of names

    ordinal hint RVA      name

          1    0 00001010 intdouble

  Summary

        1000 .data
        1000 .pdata
       1F000 .rdata
        1000 .reloc
        1000 .rsrc
        2000 .text

[funkmonkey]

For info, these are test codes for generating a .dll

mydll.h

#pragma once

#define WIN32_LEAN_AND_MEAN
#include <windows.h>

#ifdef NUM_EXPORT
#define NUM_API extern "C" __declspec(dllexport)
#else
#define NUM_API extern "C" __declspec(dllimport)
#endif

NUM_API int intdouble(int i);

dllmain.cpp

#define NUM_EXPORT
#include "mydll.h"

int intdouble(int i) {
    return i + i;
}

when compiled with VS generates a mydll.dll which exports intdouble.

dumpbin /exports mydll.dll
Microsoft (R) COFF/PE Dumper Version 7.10.6030
Copyright (C) Microsoft Corporation.  All rights reserved.


Dump of file mydll.dll

File Type: DLL

  Section contains the following exports for mydll.dll

    00000000 characteristics
    FFFFFFFF time date stamp
        0.00 version
           1 ordinal base
           1 number of functions
           1 number of names

    ordinal hint RVA      name

          1    0 00001010 intdouble

  Summary

        1000 .data
        1000 .pdata
       1F000 .rdata
        1000 .reloc
        1000 .rsrc
        2000 .text

Thanks. I"m not seeing much difference in yours and my code. Not sure why I'm not generating exports. I will modify my define macro to be like yours and see what happens. Could there be a setup in the linker that is causing this situation?

[funkmonkey]

Thanks. I"m not seeing much difference in yours and my code. Not sure why I'm not generating exports. I will modify my define macro to be like yours and see what happens. Could there be a setup in the linker that is causing this situation?

RESOLVED: It appears that it has to be compiled under 32bit. Works now.