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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