C/C++ et fonctions DLL

 HINSTANCE hLib = NULL; 
  void (WINAPI *foo)(char *message); // pointeur sur func 
   
  BOOL LoadDLL() 
  { 
        hLib = LoadLibrary("dummy.dll"); 
        if(hLib == NULL) 
              return FALSE; 
        foo = (void*)GetProcAddress(hLib, "_foo@4"); 
        if(foo = NULL) 
        { 
             FreeLibrary(hLib); 
             hLib = NULL; 
             return FALSE; 
         } 
        return TRUE; 
  }