导出和加载DLL

DLL源代码：

extern "C" int WINAPI EXPORT LALALA(int m, int n, string s)
{
 AFX_MANAGE_STATE(AfxGetStaticModuleState());
 AfxMessageBox(s.c_str());
 return m+n;
}

LIBRARY      "ADll"

EXPORTS
    ; 此处可以是显式导出
 LALALA @1;

加载DLL的代码：

typedef int (WINAPI* VOIDFUNC)(int,int,string);

 VOIDFUNC myf;
 HINSTANCE mdll;
 mdll = LoadLibrary("D://test//ADll//ADll//Debug//ADll.dll");
 int ret = 0;
 if (mdll != NULL)
 {
  myf = (VOIDFUNC)GetProcAddress(mdll, "LALALA");
  if (myf != NULL)
  {
    ret = myf(7,5, "abc");

  }
 }