how handles and callback and uicontrol works in matlab?

i am a beginner in matlab ,so please help me out by explaning the basics handles and callback

Answer 1

[Walter Roberson]

http://www.mathworks.com/help/matlab/creating_guis/write-callbacks-using-the-guide-workflow.html

http://www.mathworks.com/videos/handles-and-other-inputs-to-guide-callbacks-97328.html

http://www.mathworks.com/help/matlab/creating_guis/share-data-among-callbacks.html

[Adnan Saify]

Thanx a lot i wnt 1 more help if you can suggest me ho to download videos from matlab blogs

[Walter Roberson]

You cannot download the videos.

http://uk.mathworks.com/matlabcentral/answers/162041-how-can-i-download-mathworks-webinars

I see information that they use Adobe Flash :( If so then you might be able to use techniques like described at http://www.digitaltrends.com/computing/download-flash-videos/