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Google Chat Desktop Application using Jabber.Net

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20 Mar 2009Public Domain1 min read 275.1K   18.9K   112   73
A simple Google chat ( gtalk ) application using Jabber.Net
Gtalk_Messenger.jpg

Introduction

This is a simple Google chat ( gtalk ) desktop application developed in C#. With this application, we can easily chat with our Gmail contacts. This application serves as a best approach for developers to start with the chat application for Gmail.

Background

This application is developed using a .NET open source library, Jabber.net. This library contains a set of .NET controls for sending and receiving extensible messaging and presence protocol (XMPP), also known as the Jabber.

Using the Code

After installing the Jabber.Net library, you can see the list of Jabber.Net controls in the Visual Studio toolbox. Now, add the JabberClient control to the form and assign the user name and password.

C#
User = txtUserName.Text;
Pwd = txtPassword.Text;
jabberClient1.User = User;
jabberClient1.Server = "gmail.com";
jabberClient1.Password = Pwd;
jabberClient1.AutoRoster = true;

Now, add a RosterTree control to populate the contact list and assign the instance of the roster manager and the presence manager to the roster tree control.

C#
rm = new RosterManager();
rm.Stream = jabberClient1;
rm.AutoSubscribe = true;
rm.AutoAllow = jabber.client.AutoSubscriptionHanding.AllowAll;
rm.OnRosterBegin += new bedrock.ObjectHandler(rm_OnRosterBegin);
rm.OnRosterEnd += new bedrock.ObjectHandler(rm_OnRosterEnd);
rm.OnRosterItem += new RosterItemHandler(rm_OnRosterItem);

The RosterManager will add the contact list to the roster tree and the PresenceManager will add a notification for the contact whether the contact is in online or offline mode.

C#
pm = new PresenceManager();
pm.Stream = jabberClient1;

rosterTree1.RosterManager = rm;
rosterTree1.PresenceManager = pm;

After assigning all of the above, we have to call the connect() method to login with the given credentials and populate the roster tree with the contact list.

C#
jabberClient1.Connect();
jabberClient1.OnAuthenticate += new bedrock.ObjectHandler(jabberClient1_OnAuthenticate);

On double clicking a contact in the contact list will open a chat window, through which the user can send messages using the following function:

Gtalk_chat.jpg

C#
private void SendMessage()
{
	jabber.protocol.client.Message reply = 
		new jabber.protocol.client.Message(_jabberClient.Document);
    if (rtbSendMessage.Text != "\n" && rtbSendMessage.Text != " ")
    {
        reply.Body = rtbSendMessage.Text;
        if (reply.Body != "")
        {
            reply.To = _mailId;
            _jabberClient.Write(reply);
            string sentMsg = _jabberClient.User + " Says : " + 
					rtbSendMessage.Text + "\n";
            AppendConversation(sentMsg);
            rtbSendMessage.Text = "";
        }
    }            
}

The JabberClient is registered with an onMessage event to receive whenever an incoming message arrives. This is handled by the following function:

C#
public void _jabberClient_OnMessage
	(object sender, jabber.protocol.client.Message msg)
{
   if (!this.ReceiveFlag)
   {
       if (msg.From.Bare == this.MailId)
       {
           if (msg.Body != "")
           {
               string receivedMsg = msg.From.User + " Says : " + msg.Body + "\n";
               AppendConversation(receivedMsg);
               msg.Body = "";
           }
       }
   }
}

History

  • Released in March 2009

License

This article, along with any associated source code and files, is licensed under A Public Domain dedication


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Comments and Discussions

 
Generalabout adding contacts option in gtalk application Pin
nitin sanap8-Mar-10 19:06
nitin sanap8-Mar-10 19:06 
GeneralGoogle Chat Application for Windows Mobile using Jabber.Net Pin
jaiswalrahul26-Jan-10 20:40
jaiswalrahul26-Jan-10 20:40 
GeneralHI i need a local chet app like gmail Pin
Sravani54930-Oct-09 2:35
Sravani54930-Oct-09 2:35 
QuestionNo Contacts are displayed in the Roster Pin
pilla G Patrudu1-Aug-09 1:39
pilla G Patrudu1-Aug-09 1:39 
AnswerRe: No Contacts are displayed in the Roster Pin
$enthi£5-Aug-09 4:07
$enthi£5-Aug-09 4:07 
GeneralComponent for VS 2008 Pin
Anand KG23-Jul-09 19:15
Anand KG23-Jul-09 19:15 
Generalplease help Pin
deeps108-Jul-09 0:33
deeps108-Jul-09 0:33 
AnswerRe: please help Pin
$enthi£5-Aug-09 4:06
$enthi£5-Aug-09 4:06 
QuestionChat Group? Pin
i-developer of Istanbul12-Jun-09 1:20
i-developer of Istanbul12-Jun-09 1:20 
AnswerRe: Chat Group? Pin
$enthi£5-Aug-09 4:04
$enthi£5-Aug-09 4:04 
GeneralPlease Help Pin
Member 28960421-Jun-09 21:11
Member 28960421-Jun-09 21:11 
GeneralRe: Please Help Pin
i-developer of Istanbul8-Jun-09 19:56
i-developer of Istanbul8-Jun-09 19:56 
GeneralRe: Please Help Pin
i-developer of Istanbul10-Jun-09 0:38
i-developer of Istanbul10-Jun-09 0:38 
GeneralRe: Please Help Pin
Member 289604211-Jun-09 3:51
Member 289604211-Jun-09 3:51 
GeneralRe: Please Help Pin
i-developer of Istanbul12-Jun-09 1:02
i-developer of Istanbul12-Jun-09 1:02 
GeneralRe: Please Help Pin
leo_ullas2-Dec-09 0:41
leo_ullas2-Dec-09 0:41 
GeneralGood Job... Pin
Guramrit Singh26-May-09 21:44
Guramrit Singh26-May-09 21:44 
GeneralStatus message update problem Pin
johncrud17-May-09 9:38
johncrud17-May-09 9:38 
GeneralRe: Status message update problem Pin
$enthi£5-Aug-09 4:02
$enthi£5-Aug-09 4:02 
Generalgood job Pin
Donsw9-Apr-09 8:50
Donsw9-Apr-09 8:50 
QuestionDid you try server application? Pin
aagiinaa5-Apr-09 19:30
aagiinaa5-Apr-09 19:30 
AnswerRe: Did you try server application? Pin
$enthi£6-Apr-09 8:24
$enthi£6-Apr-09 8:24 
GeneralRe: Did you try server application? Pin
piotr_t19-May-10 1:36
piotr_t19-May-10 1:36 
GeneralDemo is not woiking Pin
Srinath Gopinath23-Mar-09 19:40
Srinath Gopinath23-Mar-09 19:40 
GeneralRe: Demo is not woiking Pin
$enthi£23-Mar-09 19:51
$enthi£23-Mar-09 19:51 

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