VC++动态链接库(DLL)编程深入浅出(三)

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图12 MFC规则DLL的调用例子

　　下面是“调用DLL”按钮单击事件的消息处理函数：

void CRegularDllCallDlg::OnCalldllButton()

{

typedef void (*lpFun)(void);


HINSTANCE hDll; //DLL句柄

hDll = LoadLibrary("RegularDll.dll");

if (NULL==hDll)

{

MessageBox("DLL加载失败");

}



lpFun addFun; //函数指针

lpFun pShowDlg = (lpFun)GetProcAddress(hDll,"ShowDlg");

if (NULL==pShowDlg)

{

MessageBox("DLL中函数寻找失败");

}

pShowDlg();

}