有关lr_load_dll的问题

lsh · 发表于 2005-5-26 10:50:31

用C语言录制的脚本，现有VC＋＋写的dll，用lr_load_dll调用时出错，请各位帮忙看看
DecodeString.dll的源码：

DecodeString.h
#ifdef DECODESTRING_EXPORTS
#define DECODESTRING_API __declspec(dllexport)
#else
#define DECODESTRING_API __declspec(dllimport)
#endif

// This class is exported from the DecodeString.dll
class DECODESTRING_API CDecodeString {
public:
CDecodeString(void);
// TODO: add your methods here.
};

extern "C" DECODESTRING_API int nDecodeString;

DECODESTRING_API int fnDecodeString(void);
-----------------------------------------------------------------------

DecodeString.cpp:
#include "stdafx.h"
#include "DecodeString.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 an example of an exported variable
DECODESTRING_API int nDecodeString=0;

// This is an example of an exported function.
DECODESTRING_API int fnDecodeString(void)
{
return 42;
}

//Max function
DECODESTRING_API int Max(int a, int b)
{
if(a>=b)return a;
else
return b;
}

//Min function
DECODESTRING_API int Min(int a, int b)
{
if(a>=b)return b;
else
return a;
}

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

/////////////在action中调用的代码为：
lr_load_dll(str);
c=fnDecodeString();-------Error -- Unresolved symbol : fnDecodeString.

不知道是为什么？