# Gtk & Julia User Inputs/Signals
**URL:** https://discourse.julialang.org/t/gtk-julia-user-inputs-signals/4942
**Category:** General Usage
**Tags:** question
**Created:** [July 19, 2017, 12:22am UTC](https://discourse.julialang.org/t/gtk-julia-user-inputs-signals/4942 "2017-07-19T00:22:22Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Rae](https://discourse.julialang.org/u/Rae)
#### Post date: [July 19, 2017, 12:22am UTC](https://discourse.julialang.org/t/gtk-julia-user-inputs-signals/4942/1 "2017-07-19T00:22:22Z")
I am using Julia and Gtk to build a GUI, but have some trouble with callbacks and signals.
How do you get the user inputs from Entry Boxes & user selections from Combo boxes and input it into a function?
Many Thanks!
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### Author:  [@tobias.knopp](https://discourse.julialang.org/u/tobias.knopp)
#### Post date: [July 19, 2017, 5:30am UTC](https://discourse.julialang.org/t/gtk-julia-user-inputs-signals/4942/2 "2017-07-19T05:30:32Z")
you can use the “low level” signal interface [https://github.com/JuliaGraphics/Gtk.jl/blob/master/doc/more\_signals.md](https://github.com/JuliaGraphics/Gtk.jl/blob/master/doc/more_signals.md)
There the user\_data is always the last argument.
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### Author:  [@tim.holy](https://discourse.julialang.org/u/tim.holy)
#### Post date: [July 19, 2017, 12:11pm UTC](https://discourse.julialang.org/t/gtk-julia-user-inputs-signals/4942/3 "2017-07-19T12:11:16Z")
You may also consider [GtkReactive](https://juliagizmos.github.io/GtkReactive.jl/stable/).
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### Author:  [@tobias.knopp](https://discourse.julialang.org/u/tobias.knopp)
#### Post date: [July 19, 2017, 4:40pm UTC](https://discourse.julialang.org/t/gtk-julia-user-inputs-signals/4942/4 "2017-07-19T16:40:00Z")
Nice! Wasn’t aware off that.