silverlight调用vcdll

注1：为了确保silverilght5在浏览器或桌面上成功调用win32 DLL，必须在项目属性中勾选相应的权限：

　　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);         }