do you mean a library?

see
http://wiki.processing.org/w/Create_Libraries

hello,
I went through the link (thank you)
This seems very complicated to create a lib.
l'IDE can create a more lib: (
thank you for your help.

you said component.
What do you mean?
A lib or a class?

thank you for reading.
this is currently just a "component" (a slider)
So make a lib may be much?
make a class if it allows a simpler component uttilisation: yes
how method.??
a +

you can use a lib that brings you a slider

a lib that is there already

lib name controlP5

http://www.sojamo.de/libraries/controlP5/


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maybe here

http://www.sojamo.de/libraries/controlP5/examples/controllers/ControlP5slider2D/ControlP5slider2D.pde

or here

http://www.sojamo.de/libraries/controlP5/examples/controllers/ControlP5slider/ControlP5slider.pde

yes I know
my slider is more complete for comande servo motor.
ceque do not controlP5 slider.
  This is why I try to make it a component.