js如何调用activex方法

Question

用C#写了个activex控件,里面有这么个方法
 public string Read()
        {
            return "sss";
        }如何在js中调用该方法,并将返回值赋给文本框控件
    <object id="TLP1"  codebase="setup.exe"  classid="clsid:46E2B1CE-6031-4D7E-B52C-390316CEA933">
</object>用
<script language="javascript">
function read()
{
  var s=TLP1.Read();
  document.getElementById('textbox1').value=s;
}
</script><input type="button" onclick"read()" valuee="Click" />
文本框不能获取值

Answer 1

[ComImport,Guid("00000118-0000-0000-C000-000000000046"),InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] 
   public interface IOleClientSite 
   { 
       void SaveObject(); 
       void GetMoniker(uint dwAssign, uint dwWhichMoniker, object ppmk); 
       void GetContainer(out IOleContainer ppContainer); 
       void ShowObject(); 
       void OnShowWindow(bool fShow); 
       void RequestNewObjectLayout(); 
   }    [ComImport,Guid("0000011B-0000-0000-C000-000000000046"),  InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)] 
   public interface IOleContainer 
   { 
       void EnumObjects([In, MarshalAs(UnmanagedType.U4)] int grfFlags, 
       [Out, MarshalAs(UnmanagedType.LPArray)] object[] ppenum); 
       void ParseDisplayName([In, MarshalAs(UnmanagedType.Interface)] object pbc, 
       [In, MarshalAs(UnmanagedType.BStr)] string pszDisplayName, 
       [Out, MarshalAs(UnmanagedType.LPArray)] int[] pchEaten, 
       [Out, MarshalAs(UnmanagedType.LPArray)] object[] ppmkOut); 
       void LockContainer([In, MarshalAs(UnmanagedType.I4)] int fLock); 
   } 
private void CallJavaScript(string Filenames) 
       {            Type typeIOleObject = this.GetType().GetInterface("IOleObject", true); 
           object oleClientSite = typeIOleObject.InvokeMember("GetClientSite", 
           BindingFlags.Instance | BindingFlags.InvokeMethod | BindingFlags.Public, 
           null, 
           this, 
           null);            IOleClientSite oleClientSite2 = oleClientSite as IOleClientSite; 
           IOleContainer pObj; 
           oleClientSite2.GetContainer(out pObj);            //参数数组 
         
           //获取页面的Script集合 
           IHTMLDocument pDoc2 = (IHTMLDocument)pObj; 
         Object  script = pDoc2.Script; 
           object[] args = new object[1]; 
           args[0] = Filenames;            try 
           { 
               //调用JavaScript方法OnScaned并传递参数，因为此方法可能并没有在页面中实现，所以要进行异常处理 
               script.GetType().InvokeMember("OnScaned", 
               BindingFlags.Instance | BindingFlags.InvokeMethod | BindingFlags.Public, 
               null, 
               script, 
               args); 
           } 
           catch(Exception err) { 
           
           } 
       } 

Answer 2

document.getElementById('TLP1').Read();