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Visual C++在创建DLL导出函数时，可能会对原始的函数名做修改。例如：
int WINAPI Add(int nLeft, int nRight)
导出后的函数名称是_Add@8。
下面两种方法可使编译器不对导出函数名称做修改：
MyLib.h
#ifdef MYLIB_EXPORTS #define MYLIBAPI extern "C" __declspec(dllexport) #else #define MYLIBAPI extern "C" __declspec(dllimport) #endif MYLIBAPI int g_nResult; //MYLIBAPI int Add(int nLeft, int nRight); MYLIBAPI int WINAPI Add(int nLeft, int nRight);
MyLibFile1.cpp
#include <windows.h> #include "MyLib.h" #pragma comment(linker, "/export:Add=_Add@8") int g_nResult; //int Add(int nLeft, int nRight) int WINAPI Add(int nLeft, int nRight) { g_nResult = nLeft + nRight; return g_nResult; }
MyLib.def
EXPORTS
AddMyExeFile1.cpp
#include <windows.h> #include <strsafe.h> #include <stdlib.h> #include "..\MyLib.h" int WINAPI WinMain(HINSTANCE , HINSTANCE , LPTSTR , int) { int nLeft = 10, nRight = 25; TCHAR sz[100]; StringCchPrintf(sz, sizeof(sz)/sizeof(sz[0]), TEXT("%d + %d = %d"), nLeft, nRight, Add(nLeft, nRight)); MessageBox(NULL, sz, TEXT("Calculation"), MB_OK); StringCchPrintf(sz, sizeof(sz)/sizeof(sz[0]), TEXT("The result from the last Add is: %d"), g_nResult); MessageBox(NULL, sz, TEXT("Last Result"), MB_OK); return 0; }
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原文地址：http://www.cnblogs.com/licb/p/DLL.html
