|
|
Posted by David on 07/16/06 17:37
On Sun, 16 Jul 2006 10:37:22 +0200, "Rik" <luiheidsgoeroe@hotmail.com>
wrote:
>David wrote:
>> Scenario: I enter information in a form. I want a table on another
>> screen (terminal server?) to be updated with that information. Is it
>> possible to direct output directly to another screen?
>>
>> What I have thought of so far is this:
>> I can run a broswer at another terminal (computer), log in to the
>> screen that needs to be updated and use the refresh meta command to
>> have the page update itself (I believe). Can a page refresh itself?
>> If yes, will the database queries be executed?
>
>If you allow the browser to refresh pages it can, either by meta-tags, or
>javascript. As long as the page isn't cached by the browser, and you run
>queries on the remote PHP-script, they will offcourse run every time the
>page is requested.
>
>> At the main program, the data would be entered using forms and stored
>> in a database for the "terminal" program to retrieve.
>>
>> What I would really like to happen is that the main program "pushes"
>> the data to the terminal, though.
>
>That's not possible in browsers.
>The only solution is to keep refreshing the page or a (hidden?) (i)frame, or
>keep polling a custom php-page with the additional info using XMLHTTPRequest
>and the like in javascript. Maybe there is something to be found in Java
>applets, but those are outside my area of expertise :-).
>
>Depending on what your actual goal is here (limited amount of known & logged
>in users that monitor something?), there could be much better options then
>browsers. Preferaply applications that can listen and respond to incoming
>traffic on a certain port. Those really aren't my cup of tea, but I'd
>imagine someone knowing C++ can whip one up. It would likely be much faster
>and accurate then anything you can achieve in a browser.
>
>Grtz,
Rik,
Thanks for your input. I've been thinking about this problem a lot.
It may be possible to do something with bash scripts. I have to get
Linux installed on this computer first. I did a little javascript
programming a few years back. Not enough to help me with this problem
and I am do not have enough time to learn all of the javacsript that i
would need.
For testing purposes, I will simply set it up with the meta-tags. It
is definitely not the best solution, but I need to do it as a demo.
Thx again,
David
Navigation:
[Reply to this message]
|