Re: OT: Device control and status display using Pocket IE

["Patrick Lidstone" <patrick@xxxxxxx>]

> My problem is implementing a 'real time' status display via simple
HTTP or
> Java script,  update at say once per second.
> We need to be able to display some very simple parameters, status,
> temperature etc.  as a dynamic display that updates in the browser
window.
> I'd like to keep flicker/refresh to a minimum so I don't really
want to
> update the whole page.
> My first thoughts are to update a 'status' frame, or to use Java
script to
> fetch values from the web sever by intercepting requests for
specific
> pages/CGI.
>
> Anyone got any thoughts or preferably and code examples so that I
can show a
> proof of concept to the guy's that will eventually implement this?

HTTP really isn't the right tool for the job in this environment IMO -
it doesn't do any form of push very well.

I've written a xAP active X control for PPC, which can be used with
Embedded VB (which is a free download from MS) to effect bi-
directional, real-time control. Unfortunately it's not very stable,
but it might be worth a look. Even if you didn't go the xAP route,
you should be able to hack together something in VB using
conventional sockets which will have much better usability than a
browser based solution.

Patrick