ActiveX（四） mshtml 命名空间 重要接口简介

　　在上一篇随笔 ActiveX（三）ActiveX 调用 Js 中，我们已经可以获得js中window对象的强类型接口、即 mshtml.IHTMLWindow2 ，通过该接口、我们可以调用js函数。那么我们再试一试其他的方法呢，看看结果是否符合预期：

　　

        private void btnAlert_Click(object sender, EventArgs e)
        {
            if (this.window2 != null)
            {
                this.window2.alert("C#CodeAlert:" + this.txtPwd.Text);
            }
        }

        private void btnLocation_Click(object sender, EventArgs e)
        {
            if (this.window2 != null && this.window2.location != null)
            {
                this.window2.alert(this.window2.location.toString());
            }
        }

　　

　　哈哈，试了一下，没有问题。 但是经过使用发现 location 属性是只读的，并且、如果通过反射强制设置 location 属性，则会抛出异常哦。

　　现在知道了 window ， 那 document 呢？ mshtml 命名空间中有没有提供相应的接口呢？ 经过查找发现、document实现了如下的两个接口：

　　

    [Guid("332C4425-26CB-11D0-B483-00C04FD90119")]
    [TypeLibType(4160)]
    public interface IHTMLDocument2 : IHTMLDocument
    {
        [DispId(1005)]
        IHTMLElement activeElement { get; }
        [DispId(1022)]
        dynamic alinkColor { get; set; }
        [DispId(1003)]
        IHTMLElementCollection all { get; }
        [DispId(1007)]
        IHTMLElementCollection anchors { get; }
        [DispId(1008)]
        IHTMLElementCollection applets { get; }
        [DispId(-501)]
        dynamic bgColor { get; set; }
        [DispId(1004)]
        IHTMLElement body { get; }
        [DispId(1032)]
        string charset { get; set; }
        [DispId(1030)]
        string cookie { get; set; }
        [DispId(1033)]
        string defaultCharset { get; set; }
        [DispId(1014)]
        string designMode { get; set; }
        [DispId(1029)]
        string domain { get; set; }
        [DispId(1015)]
        IHTMLElementCollection embeds { get; }
        [DispId(1031)]
        bool expando { get; set; }
        [DispId(-2147413110)]
        dynamic fgColor { get; set; }
        [DispId(1043)]
        string fileCreatedDate { get; }
        [DispId(1044)]
        string fileModifiedDate { get; }
        [DispId(1042)]
        string fileSize { get; }
        [DispId(1045)]
        string fileUpdatedDate { get; }
        [DispId(1010)]
        IHTMLElementCollection forms { get; }
        [DispId(1019)]
        FramesCollection frames { get; }
        [DispId(1011)]
        IHTMLElementCollection images { get; }
        [DispId(1028)]
        string lastModified { get; }
        [DispId(1024)]
        dynamic linkColor { get; set; }
        [DispId(1009)]
        IHTMLElementCollection links { get; }
        [DispId(1026)]
        HTMLLocation location { get; }
        [DispId(1041)]
        string mimeType { get; }
        [DispId(1048)]
        string nameProp { get; }
        [DispId(-2147412090)]
        dynamic onafterupdate { get; set; }
        [DispId(-2147412091)]
        dynamic onbeforeupdate { get; set; }
        [DispId(-2147412104)]
        dynamic onclick { get; set; }
        [DispId(-2147412103)]
        dynamic ondblclick { get; set; }
        [DispId(-2147412077)]
        dynamic ondragstart { get; set; }
        [DispId(-2147412074)]
        dynamic onerrorupdate { get; set; }
        [DispId(-2147412099)]
        dynamic onhelp { get; set; }
        [DispId(-2147412107)]
        dynamic onkeydown { get; set; }
        [DispId(-2147412105)]
        dynamic onkeypress { get; set; }
        [DispId(-2147412106)]
        dynamic onkeyup { get; set; }
        [DispId(-2147412110)]
        dynamic onmousedown { get; set; }
        [DispId(-2147412108)]
        dynamic onmousemove { get; set; }
        [DispId(-2147412111)]
        dynamic onmouseout { get; set; }
        [DispId(-2147412112)]
        dynamic onmouseover { get; set; }
        [DispId(-2147412109)]
        dynamic onmouseup { get; set; }
        [DispId(-2147412087)]
        dynamic onreadystatechange { get; set; }
        [DispId(-2147412093)]
        dynamic onrowenter { get; set; }
        [DispId(-2147412094)]
        dynamic onrowexit { get; set; }
        [DispId(-2147412075)]
        dynamic onselectstart { get; set; }
        [DispId(1034)]
        IHTMLWindow2 parentWindow { get; }
        [DispId(1021)]
        IHTMLElementCollection plugins { get; }
        [DispId(1047)]
        string protocol { get; }
        [DispId(1018)]
        string readyState { get; }
        [DispId(1027)]
        string referrer { get; }
        [DispId(1001)]
        dynamic Script { get; }
        [DispId(1013)]
        IHTMLElementCollection scripts { get; }
        [DispId(1046)]
        string security { get; }
        [DispId(1017)]
        IHTMLSelectionObject selection { get; }
        [DispId(1069)]
        HTMLStyleSheetsCollection styleSheets { get; }
        [DispId(1012)]
        string title { get; set; }
        [DispId(1025)]
        string url { get; set; }
        [DispId(1023)]
        dynamic vlinkColor { get; set; }

        [DispId(1058)]
        void clear();
        [DispId(1057)]
        void close();
        [DispId(1067)]
        IHTMLElement createElement(string eTag);
        [DispId(1071)]
        IHTMLStyleSheet createStyleSheet(string bstrHref = "", int lIndex = -1);
        [DispId(1068)]
        IHTMLElement elementFromPoint(int x, int y);
        [DispId(1065)]
        bool execCommand(string cmdID, bool showUI = false, object value = Type.Missing);
        [DispId(1066)]
        bool execCommandShowHelp(string cmdID);
        [DispId(1056)]
        dynamic open(string url = "text/html", object name = Type.Missing, object features = Type.Missing, object replace = Type.Missing);
        [DispId(1060)]
        bool queryCommandEnabled(string cmdID);
        [DispId(1062)]
        bool queryCommandIndeterm(string cmdID);
        [DispId(1061)]
        bool queryCommandState(string cmdID);
        [DispId(1059)]
        bool queryCommandSupported(string cmdID);
        [DispId(1063)]
        string queryCommandText(string cmdID);
        [DispId(1064)]
        dynamic queryCommandValue(string cmdID);
        [DispId(1070)]
        string toString();
        [DispId(1054)]
        void write(params object[] psarray);
        [DispId(1055)]
        void writeln(params object[] psarray);
    }

IHTMLDocument2