1、先声明DLL中将需要的函数:
如:typedef int (__stdcall *Impact_FeedLine)(HANDLE hPort,int nPortType);
2、HINSTANCE handle; //声明句柄
handle = LoadLibrary("ImpactDLL.dll");
Impact_FeedLine lpLine;
FARPROC lpFarLine;
lpFarLine = GetProcAddress(handle, "Impact_FeedLine");
lpLine = Impact_FeedLine(lpFarLine); //转换函数
lpLine(g_hComm,2); //调用函数