From: paul.rogers@... (Paul)
Date: 2004-10-08T12:04:46+09:00
Subject: Re: How to determine supported dispinterfaces for WIN32OLE object?

Will, can I ask what you aredoing with these interfaces? Im working on
a new version of some code that we use to test web applications via
IEs OLE interface and DOM.
One of the things Im hoping to do is a script recorder, and these
events would be essential in letting me recoed a users actions

Thanks

Paul


"Will Gwaltney" <will.gwaltney@sas.com> wrote in message news:<ck3ku6$m36$1@license1.unx.sas.com>...
> Thanks for the reply, Graham.  As near as I can tell, the page you mention
> on the Microsoft site has *most* of the interfaces, but not all of them
> (thanks, Microsoft...)  I couldn't figure out which interfaces to use for
> submit and reset buttons and a few others.  So one of the things I've been
> trying to figure out is how to get Ruby to tell me which interfaces a
> particular element supports.  I know the
> IConnectionPointContainer::EnumConnectionPoints method in C++ will get me
> that info, but I don't know how to call it from WIN32OLE.  Things are
> getting desperate; I might have to resort to using VB! :-)
> 
> Will
> 
> "Graham Jenkins" <gjenkins@xchanging.com> wrote in message
> news:e249d8e7.0410070419.113506fc@posting.google.com...
> > The HTMLElementEvents2 interface appears to be supported by
> > "non-functional" elements such as SPAN, DIV, P. See
> >
>  http://msdn.microsoft.com/library/default.asp?url=/workshop/browser/mshtml/reference/events/events.asp
> > for other interfaces - such as HTMLAnchorEvents.
> >
> > ie.document.all.each { |element|
> >     if element.tagName == 'A'
> >         ev = WIN32OLE_EVENT.new(element, 'HTMLAnchorEvents')
> >         ev.on_event {|*args|
> >             p args
> >         }
> >     end
> > }
> >
> > "Will Gwaltney" <will.gwaltney@sas.com> wrote in message
>  news:<ck13hq$fog$1@license1.unx.sas.com>...
> > > I'm using WIN32OLE_EVENT to set up some event handlers on various DHTML
> > > elements in Internet Explorer, and I'm having a bit of trouble
>  identifying
> > > the right event dispinterfaces to use.  The Microsoft online
>  documentation
> > > is less than helpful; they claim that you can use the HTMLElementEvents2
> > > interface on most all the HTML elements you care about, but I'm getting
>  the
> > > following when I try:
> > >
> > > interface not found
> > >     HRESULT error code:0x80004002
> > >       No such interface supported
> > >
> > > Here's a code skeleton that outlines what I'm trying to do:
> > >
> > > ---------------- (snip) -----------------------
> > >
> > > require 'win32ole'
> > >
> > > ie = WIN32OLE.new('InternetExplorer.Application')
> > >
> > >      .
> > >      .
> > >      .
> > >  insert code to display a web page here...
> > >      .
> > >      .
> > >      .
> > >
> > > elements =  ie.document.all
> > > elements.each do |element|
> > >      ev = WIN32OLE_EVENT.new(element, 'HTMLElementEvents2')
> > >       .
> > >       .
> > >       .
> > >      assign event handlers here
> > >       .
> > >       .
> > >       .
> > > end
> > >
> > > ---------------- (snip) -----------------------
> > >
> > > And here's the URL for the Microsoft documentation that makes the claims
> > > about the HTMLElementEvents2 interface:
> > > http://msdn.microsoft.com/workshop/browser/mshtml/tutorials/sink.asp
> > >
> > > What am I missing?  Do I have to somehow massage the element into a
> > > different object that will handle the HTMLElementEvents2 interface?  Or
> > > should I be using another interface entirely?  (BTW, is there any way in
> > > WIN32OLE to figure out which interfaces an object supports?)
> > >
> > > Any help will be much appreciated!
> > >
> > > Will Gwaltney
> > > SAS Institute