Peter Kalmstrom. Skype is offering a range of different tools and techniques for developers. Controlling the Skype client via the API, showing presence on the web or building a Skype extra. All will be covered!

1. Skype Development
Techniques and Tools
An Overview
eBay Developers Program 2007
Peter Kalmström
PM Skype Toolbars

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© 2007 eBay Inc. Some rights reserved.
eBay and the eBay logo are among the registered trademarks of eBay Inc., PayPal and the PayPal logo are registered trademarks of PayPal, Inc.,
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Other trademarks and brands are the property of their respective owners.

3. Overview Components
JavaScript
over COM
Web
presence

4. Techniques
Manipulating the Skype client
•
Cross-platform API
–
COM-wrapper
–
Java wrapper
–
URIs
–
Phone number manipulation—PNR
–
Web
•
Web presence—SkypeWeb 1.1
–
Skype COM via javascript
–
The URIs
–
Building a Skype Extra
•

5. Communicating via the Skype Client

6. Manipulating the Skype client II
Control dialogs
•
Focus
•
Silent mode
•
Add items to the
•
Do-more menu

7. Expression
Help users express
•
themselves by controlling:
Mood messages
–
Avatars
–
Online status
–

8. Cross-Platform API
Works by operating system messaging
•
Register for messages
–
Listen for messages
–
Send messages
–
Text-based
•

9. Make the First Call—API Example
-> CALL test
<- CALL 1540 STATUS ROUTING
<- CALL 1540 SUBJECT
<- CALL 1540 STATUS ROUTING
<- CALL 1540 STATUS RINGING
<- CALL 1540 STATUS INPROGRESS

10. Set First Call on Hold ...
-> SET CALL 1540 STATUS ONHOLD
<- CALL 1540 STATUS INPROGRESS
<- CALL 1540 STATUS ONHOLD
.. and make another call!
•
-> CALL echo123
<- CALL 1545 STATUS ROUTING
<- CALL 1545 SUBJECT
<- CALL 1545 STATUS ROUTING
<- CALL 1545 STATUS RINGING
<- CALL 1545 STATUS INPROGRESS

11. Join Second Call (1545) into Conference
with First Call (1540)
-> SET CALL 1545 JOIN_CONFERENCE 1540
<- CALL 1545 CONF_ID 17930
<- CALL 1545 CONF_ID 17930
<- CALL 1540 CONF_ID 17930

12. First Call Is Automatically Resumed
and Joined to Conference
<- CALL 1540 STATUS INPROGRESS
<- CALL 1540 DURATION 53
<- CALL 1540 STATUS FINISHED
<- CALL 1545 DURATION 23
<- CALL 1545 STATUS FINISHED

13. COM-Wrapper
Reduces the
•
complexity of Skype-
based development
– Object-oriented
programming
– Collections
(users, chats, calls,
and much more)
– Objects
– Properties
– Events

14. C# COM Example
SKYPE4COMLib.Skype objSkype;
SKYPE4COMLib.Call objCallOne, objCallTwo;
objSkype = new SKYPE4COMLib.Skype();
objSkype.Attach(7,true);
objCallOne = objSkype.PlaceCall(quot;testquot;,quot;quot;,quot;quot;,quot;quot;);
while (objCallOne.Status != SKYPE4COMLib.TCallStatus.clsInProgress){ }
objCallOne.Hold();
objCallTwo = objSkype.PlaceCall(quot;echo123quot;, quot;quot;, quot;quot;, quot;quot;);
while (objCallTwo.Status != SKYPE4COMLib.TCallStatus.clsInProgress){}
objCallTwo.Join(objCallOne.Id);

15. Coding with the COM API—
A Few Practical Tips
Timeout property
•
• Client object
• Application object
• Skype object

16. Java Wrapper
Java power
•
• Entire wrapper
is open source
• Write once, run on
Windows/Mac/Linux

17. Java Example
package com.skype.sample;
•
import com.skype.ChatMessage;
•
import com.skype.ChatMessageAdapter;
•
import com.skype.Skype;
•
import com.skype.SkypeException;
•
public class AutoAnswering {
•
public static void main(String[]args)throws Exception {
•
Skype.setDeamon(false); // to prevent exiting from this program
•
Skype.addChatMessageListener(new ChatMessageAdapter() {
•
public void chatMessageReceived(ChatMessage received)throws SkypeException {
•
if (received.getType().equals(ChatMessage.Type.SAID)) {
•
received.getSender().send(quot;I'm working. Please, wait a moment.quot;);
•
}
•
}
•
});
•
}
•
}
•

18. URIs
Since Skype 1.4 skype: links have been
•
supported
• Can be used on any Web page or in
any application that supports hyperlinks
• No authorization required
• Skype MS Office toolbar + Skype Web
plug-ins only use URIs

19. Skype URI Examples
skype:
skype:[targets]
skype:[targets]?call
skype:[skypenames]?chat
skype:[skypename]?voicemail
skype:[skypename]?add
skype:[skypenames]?sendfile
skype:[skypename]?userinfo
skype:[PSTN]?sms

20. Phone Number Manipulation—PNR
Advanced text parsing algorithm
•
• Phone numbers
Find
–
Validate
–
Analyze
–
ActiveX
•
• Country selectors,
flags and dropdowns

21. Web
• See online
status for any
Skype user
• Presence
information
drives
communication

22. Web Presence—SkypeWeb 1.1
mystatus.skype.com/SkypeUserName
•
Localized in ten languages
•
Five image formats
•
skypeName.mystatus.skype.com DNS query option
•

23. Skype COM via Javascript
Windows-based ActiveX-component
•
Internet Explorer only
•
Skype client needs to be installed
•
<html>
<body>
<object id=Skype name=Skype height=0 width=0
classid=clsid:830690FC-BF2F-47A6-AC2D-330BCB402664
codebase=quot;http://www.yoursite.com/Skype4COM.dllquot; >
<span style=quot;color: redquot;>Failed to load control.</span>
</object>
</body>
</html>

24. Building a Skype Extra
Skype Extras SDK
•
• Software distribution and DRM-system
• Distribute many types of applications
Exe
–
DLL
–
DHTML
–
Java
–
SDK embeds your application
•
into Skype-distribution package

25. Skype Extra SDK & Publishing Studio

26. Other Tools
SkypeTracer
•
• Skype icons
• Skype strings
• SkypeCasts javascript

27. Q&A
Contact information:
Peter Kalmström
Skype:peter.kalmstrom.nu

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