MACROMEDIA FLASH COMMUNICATION SERVER MX-SERVER-SIDE COMMUNICATION ACTIONSCRIPT DICTIONARY Spécifications télécharger pdf (Page 121)

Sample Applications 43

3 Provide a value for the maximum scrolling of the History text box component.

// Set maximum scroll

History.maxscroll = 1000;

Prevent the user from sending until after the user has connected to the server.

// Don’t allow the user to send until after connection

_root.Send_btn.setEnabled(false);

Create a new network connection.

// Open a connection to the server

client_nc = new NetConnection();

Provide an onStatus function to handle any status messages.

// If connection is closed, clear the History and the list

client_nc.onStatus = function(info) {

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

if (info.description == "NetConnection.Connect.Closed") {

History.text = "";

_root.People.removeAll();

}

Create the event handler for the Connect button. If the user selected the button when the label

was Connect, then connect to the server and update the buttons.

function doConnect() {

if (Connect_btn.getLabel() == "Connect") {

// Connect to the chat application.

// The second parameter, _root.Room.text,

// is the application instance.

_root.client_nc.connect("rtmp:/doc_textchat/" + _root.Room.text,

_root.User.text);

// Update button label

Connect_btn.setLabel("Disconnect");

// Enable send button

_root.Send_btn.setEnabled(true);

In the same doConnect function, create a remote shared object and connect to it.

// Create a remote shared object to keep track

// of the users. The value client_nc.uri is the URI of the

// NetConnection the shared object will use to connect to the

// server. I.e., the one just created.

users_so = SharedObject.getRemote("users_so", _root.client_nc.uri,

false);

// Attach the shared object to client_nc

users_so.connect(_root.client_nc);

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MACROMEDIA FLASH COMMUNICATION SERVER MX-SERVER-SIDE COMMUNICATION ACTIONSCRIPT DICTIONARY Spécifications Page 121