From: Larry Bouthillier <[EMAIL PROTECTED]>
Subject: Re: callback example wanted
I've done this by calling urls of the form 'javascript:myFunction(x)' from the
realaudio event file. Your function must be in the _top level browser
frame, if
you're using frames.
Larry
RealForum wrote:
> From: bill <[EMAIL PROTECTED]>
> Subject: callback example wanted
>
> Hi.
>
> I'm trying to synchronize realaudio events with a javascript function that
> displays dhtml layers as the audio plays. I thought I had an ingenious
way of
> doing this by
>
> 1) using regular url events to a access a urls such as
> http://www.foo.com/target/f.html?target=1
> http://www.foo.com/target/f.html?target=2
> http://www.foo.com/target/f.html?target=3
>
> 2) put a javascript funtion in the event's target frame source that
parses out
> the "target=x" element of the url and passes the x to another function that
> displays the corresponding dhtml layer.
>
> This worked, but, I found that no matter how I constructed the event
URLs, the
> browser would *always* go back to the host and re-access the f.html file,
> rather that pull the page from the browser cache (is this a realpayer
issue?).
> This meant that depending on the user connection speed, or load on the host,
> the div layers would not be consistently synchronized with the audio
content.
> So, It looks like the only way to get a dhtml layer to display precisely
on que
> is to use the callback methods.
>
> I've got callbacks working with vbscript without much pain. I also
managed to
> get the callback.java code compiled despite the mistaken call to the
> GetPacketsTotal method.
>
> int tempPcks = ra.GetPktsTotal();
>
> on lime 41 should be:
>
> int tempPcks = ra.GetPacketsTotal();
>
> The question: how do I make this thing work? The extension docs are
complete,
> but lack any examples of implementation. I believe there *was* and
example of
> this somewhere on the real.com site, but apparently it has disappeared.
>
> Thank you,
> Bill
>
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