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tkguislider.py
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tkguislider.py
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#!/usr/bin/env python
import tkinter
import sys
import libmapper as mpr
def on_gui_change(x):
sig_out.set_value(float(x))
dev = mpr.Device("tkgui")
sig_out = dev.add_signal(mpr.Direction.OUTGOING, "output",
1, mpr.Type.FLOAT, None, 0, 100)
ui = tkinter.Tk()
ui.title("libmapper Python GUI demo")
name = tkinter.StringVar()
name.set("Waiting for device name...")
name_known = False
label = tkinter.Label(ui, textvariable=name)
label.pack()
w = tkinter.Scale(ui, from_=0, to=100, label='signal0',
orient=tkinter.HORIZONTAL, length=300,
command=on_gui_change)
w.pack()
def do_poll():
global name_known
dev.poll(20)
if dev.ready and not name_known:
name.set('Device name: %s, listening on port %s' %
(dev[mpr.Property.NAME], dev[mpr.Property.PORT]))
name_known = True
ui.after(5, do_poll)
do_poll()
ui.mainloop()