silverlight调用vcdll

　　勾选Enable running application out of the browser及其require elevated trust when running in-browser

　　勾选require elevated trust when running in-browser

　　注2：win32 dll文件编译后放在\windows\system32或\windows\system目录下，win7 x64的系统放在后者。

///<sumMary>  
        /// 弹出窗口  
        ///</sumMary>  
        ///<param name="h">弹出窗口的父窗口，在这里没有，所以为0</param>  
        ///<param name="message">需要显示的消息</param>  
        ///<param name="title">窗口的标题</param>  
        ///<param name="type">窗口的类型 0为确定按钮,1为确定、取消双按钮</param>  
        ///<returns></returns>  
        [DllImport("user32.dll",EntryPoint = "messageBoxA")]
        public static extern int MsgBox(int h,String message,String title,int typE);

        ///<sumMary>  
        /// 获取到DLL的值  
        ///</sumMary>  
        ///<param name="Anumber">数字A</param>  
        ///<param name="Bnumber">数字B</param>  
        ///<returns></returns>  
        [DllImport("IlasLinkDll.dll",CharSet = CharSet.Ansi,EntryPoint = "GetNum",ExactSpelling = falsE)]
        public static extern double GetNum(double Anumber,double Bnumber); 

        public SLDlltest()         {             InitializeComponent();             MsgBox(0,"调用IlasLinkDll.dll获得的结果：" + GetNum(500.0,23.0).ToString(),"提示信息",1);             MsgBox(0,"这是调用User32.dll弹出的窗口",1);         }