MACROMEDIA FLASH COMMUNICATION SERVER MX-SERVER-SIDE COMMUNICATION ACTIONSCRIPT DICTIONARY Specifikace stáhnout pdf (Strana 157)

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101

Application Development Tips and Tricks 79

Getting the stream time length in ActionScript

If you are buffering your streams, you can use the

NetStream.bufferLength property to get the

number of seconds currently in the buffer. Sometimes, however, you may want to get the total

length of a stream; in this case, the Flash Player doesn’t know the length of the stream, but the

server does. The server has a

Stream.length property that the client can request through a

message to the server.

You could write client-side ActionScript such as the following to request the stream length:

function getInfo()

{

nc.call("sendInfo", new MyResultSetName(), myStream);

}

function MyResultSetName()

{

this.onResult = function(retVal)

{

_root.streamlength = retVal;

};

this.onStatus = function(info)

{

trace("Level: " + info.level + " Code: " + info.code);

// process error object

};

}

Then, in the corresponding server-side ActionScript, you would write the following in the

main.asc file:

application.onAppStart = function()

{

trace("::: Application has started :::");

}

application.onConnect = function(client)

{

application.acceptConnection(client);

// Add methods

client.prototype.sendInfo = function(name) {

var slen = Stream.length(name);

trace("slen: " + slen);

return slen;

};

}

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