JS如何调用BHO的方法

[kotizheng]

用C#做了一个IE的BHO插件，要求能与JS进行互动，BHO中调用js还是比较方便的，直接使用Dom的execScript应该能够搞定，但js中如何调用BHO的方法呢？

求高手指点！

[wayu002]

http://social.msdn.microsoft.com/Forums/ie/en-US/40500bc9-e759-4051-a3d6-5fe7c11a2cf6/calling-c-bho-methods-from-javascript?forum=ieextensiondevelopment

[kotizheng]

引用 1 楼 wayu002 的回复:

http://social.msdn.microsoft.com/Forums/ie/en-US/40500bc9-e759-4051-a3d6-5fe7c11a2cf6/calling-c-bho-methods-from-javascript?forum=ieextensiondevelopment

按照上面这样做了，悲催的是不是每次都成功，debug发现 dynamic window = m_WebBrowser.Document.parentWindow; System.Runtime.InteropServices.Expando.IExpando windowEx = (System.Runtime.InteropServices.Expando.IExpando)window; windowEx.AddProperty("myExtension"); window.myExtension = this; 转换IExpando时有时候抛DBNUll，十次基本九次如此，还有别的方法没？

[game1c2c]

window.myExtension=this 只适用于.net 4.0 试试这个 HTMLDocument document = (HTMLDocument)this.Explorer.Document; IExpando windowEx = (IExpando)document.parentWindow; PropertyInfo MyExtension = windowEx.GetProperty("LGSoft_TB", BindingFlags.Default); if (MyExtension == null) MyExtension = windowEx.AddProperty("LGSoft_TB"); MyExtension.SetValue(windowEx, this, null); 原文章来源[大家站社区](http://www.dajiaz.com)原文出处：http://www.dajiaz.com/program/dotnet/js-call-bho-function.html

[qq_21949375]

我在开发.net qrcode generator和c# qrcode generator,因此我自学了一些c#语言，对于你的问题我刚好知道一点，不知道能不能帮到你。你可以在js中直接启动应用程序，并传递参数给该应用程序，下面是函数：

function execCommand(command, strArgs)
{
// separate command arguments
var args = new Array();
var quoted = false;
var double_quoted = false;
var param = "";
for (var i = 0; i < strArgs.length; i++) {
var charArgs = strArgs.substring(i,i + 1);
if ( charArgs == "\"" && !quoted ) { double_quoted =! double_quoted; }
else if ( charArgs == "\'" && !double_quoted ) { quoted =! quoted; }
else if ( /\s/.test(charArgs) && !quoted && !double_quoted ) {
if (param != "") args.push( param );
param = "";
} else param += charArgs;
}
if (param != "") args.push( param );
// create a file object for the external program
try {
var applicFile = Components.classes["@mozilla.org/file/local;1"].createInstance(Components.interfaces.nsILocalFile);
var applic = Components.classes["@mozilla.org/process/util;1"].createInstance(Components.interfaces.nsIProcess);
//var applic = Components.classes["@mozilla.org/process/util;1"].createInstance(Components.interfaces.nsIProcess2);
applicFile.initWithPath(command);
if (!applicFile.exists()) {
alert("Executable '" + command + "' does not exist.");
} else {
applic.init(applicFile);
applic.run(false, args, args.length);
//applic.runAsync(args, args.length, null, false);
}
} catch (e) {
alert("Cannot run executable: " + e);
return false;
}
}