Update 2017: I’ve published this first in 2010. However ControlP5 changed a lot. I’ve updated the examples to the recent 2.2.6 version. Also check the Github readme page of the library for some more straightforward examples. For more styling options see my example 2 post. ControlP5 is a GUI and controller library made by Andreas Schlegel. You can use it to easy add a GUI (Graphics User Interface)
![Processing ControlP5 example 1: user interface ⋆ Kasper Kamperman](https://cdn-ak-scissors.b.st-hatena.com/image/square/78fbed76b99b610f931420fafcea9db025423cbb/height=288;version=1;width=512/http%3A%2F%2Fmedia.kasperkamperman.com%2F2010%2F03%2FcontrolP5-interface-basic.jpg)