DLL export function name and system API name same conflict problem _api name conflict

: http://blog.163.com/zhangjinqing1234@126/blog/static/307302602012111295026614/

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The thing is, in actual development, the function name exported by the DLL is defined by the customer, unfortunately the customer-defined exported function name

and the name of the system API is the same, so that the API name conflicts, causing the call failed, the following is my test examples and solutions.

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Header file TestDll.h, API prototypes are defined as follows:

#pragma once

/Os has a Api:dword getversion (VOID);
void GetVersion (char *pszbuf, int *pbuflen); Client-defined APIs

CPP file TESTDLL.CPP,API implementation code as follows:

#include "stdafx.h"
#include "TestDll.h"

void GetVersion (char *pszbuf, int *pbuflen)
{
    if (pszbuf!= Null && pbuflen!= null && *pbuflen >=)
    {
        strcpy (pszbuf, "1.0.0.1");
    }

DLL export module definition file Testdll.def contents are as follows:

LIBRARY "Testdll"
Exports
GetVersion

The test program code is as follows:

#include "stdafx.h"
#include ". /testdll/testdll.h "
#ifdef _debug
#pragma comment (lib," ...). /debug/testdll.lib ")
#else
#pragma comment (lib," ...). /release/testdll.lib ")
#endif

int _tmain (int argc, _tchar* argv[])
{
    char szversion[16] = {0};
    int ibuflen =;
    GetVersion (szversion, &ibuflen);
    printf ("%s", szversion);

    GetChar ();
	return 0;
}

Compile run, generate error message as follows:

1> TestDemo.cpp
1>testdemo.obj:error lnk2019:unresolved external symbol "void __cdecl getversion (char *,int *)" (?) getversion@ @YAXPADPAH @z) referenced in function _wmain

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Workaround:

The contents of the TestDll.h header file are modified as follows:

#pragma once

/Os has a Api:dword getversion (VOID);
void GetVersion (char *pszbuf, int *pbuflen); Client-defined API

void Mygetversion (char *pszbuf, int *pbuflen);  

TestDll.cpp content is modified as follows:

#include "stdafx.h"
#include "TestDll.h"

void GetVersion (char *pszbuf, int *pbuflen)
{
    // Implementation in Mygetversion
}

void Mygetversion (char *pszbuf, int *pbuflen)
{
    if (pszbuf!= NULL && Pbuflen!= NULL && *pbuflen >=)
    {
        strcpy (pszbuf, "1.0.0.1");
    }

Testdll.def memory modifications are as follows:

LIBRARY "Testdll"
Exports
Getversion=mygetversion

The final compilation runs with the following effect: