Gtk example help

New to Julia
1

New to programming and Julia. Trying out an example with the GTk package. It runs OK calling the .jl file under the julia REPL. include(“gtktest.jl”). Window comes up and when I press the button i get the "button was pressed " response. When I try to run the script under the windows command prompt c:\ julia gtktest.jl nothing happens. The path is good . it’s not a “path” issue. I placed the file in the same directory as the julia.exe executable.
using Gtk

win = GtkWindow(“My First Gtk.jl Program”, 400, 200)

b = GtkButton(“Click Me”)
push!(win,b)

function on_button_clicked(w)
println(“The button has been clicked”)
end
signal_connect(on_button_clicked, b, “clicked”)

showall(win)

2

From the Non REPL Usage · Gtk.jl documentation, your program should wait for the window to be closed if you wish to run the program outside of the Julia REPL, using this piece of code:

if !isinteractive()
    c = Condition()
    signal_connect(win, :destroy) do widget
        notify(c)
    end
    @async Gtk.gtk_main()
    wait(c)
end

Essentially, this will create a Condition object that the program will “wait” until it is notified when the window is closed. This will keep the program running instead of immediately closing.

1 Like
3

Thanks