Subclassing [RESOLVED]

[Tool]

Hello everyone.

I have heard quite a bit about subclassing, but never have used it and dont really know what it is.

My belief is that when you want to watch something on another program you need to subclass it in your application to check it for changes, or what not.

Could someone please give me a description of what it is (if I am wrong) and possibly an example of how I would subclass something? I would eventually like to subclass some chat applications like irc (if I was semi-right about subclassing) to flash/open/beep or anything when someone types your name

Any help would be appreciated and thank you