I've successfully managed to get a Python program to listen for Control+Alt+P and Control+Alt+O even when the window doesn't have focus.
However I can't seem to capture <FX86Audio...> events even though the succesfully bind (if spelled correctly).
Here is a code snippet that works:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
##!/usr/bin/python3.5 <- Test this every now and then for compatability
# Reqquires:
# sudo apt-get install libkeybinder-3.0-0 gir1.2-keybinder
'''
From : https://stackoverflow.com/questions/56517261/global-hotkey-in-python3-using-gtk-and-xlib
'''
import gi
# Python 2
gi.require_version('Gtk', '3.0')
gi.require_version('Gdk', '3.0')
gi.require_version('Keybinder', '3.0')
# Python 3
#gi.require_versions({"Gtk": "3.0", "Gdk": "3.0", "Keybinder": "3.0"})
from gi.repository import Gtk, Gdk, Keybinder, Pango
class A:
def __init__(self):
# Basic setup of a window with a label
self.win = Gtk.Window()
self.lab = Gtk.Label(label="Hello World!")
self.lab.modify_font(Pango.FontDescription("sans 36"))
self.win.add(self.lab)
self.win.connect("destroy", Gtk.main_quit)
self.win.show_all()
self.count = 0
key = Keybinder # The module to bind keys
# key.bind(KEYCOMBINATION, FUNC, ARG)
key.bind("<control><alt>p", self.say, "Hello")
key.bind("<control><alt>o", self.say, "World!")
key.bind("<XF86AudioPlay>", self.say, "World :)")
key.bind("<XF86AudioPause>", self.say, "World :(")
key.bind("<AudioPlay>", self.say, "World :/")
key.init() # Call the mainloop something like Gtk.main()
def say(self, key, msg):
self.count += 1
print(msg)
# Python 2
text="Pressed "+ key + " " + str(self.count) + " times"
self.lab.set_label(text)
# Python 3
# self.lab.set_label(f"Pressed {key} {self.count} times")
A() # Call the object
if not Keybinder.bind("<control><alt>p", A.say, "Bad News 1"):
print "Keybinder.bind() failed 1."
if not Keybinder.bind("<XF86AudioPlay>", A.say, "Bad News 2"):
print "Keybinder.bind() failed 2."
Gtk.main() # Call the main loop
As mentioned earlier these key bindings are accepted but do not work:
key.bind("<XF86AudioPlay>", self.say, "World :)")
key.bind("<XF86AudioPause>", self.say, "World :(")
key.bind("<AudioPlay>", self.say, "World :/")
The keyboard works for pausing and playing with rhythembox.
Thinking that Unity was getting in the way I remapped <XF86AudioPlay> keyboard shortcut to another sequence to no avail.
On other websites it talks about gsettings and mine seem OK for Ubuntu 16.04 with Unity interface:
Reply to comments
Here is xev output:
KeymapNotify event, serial 37, synthetic NO, window 0x0,
keys: 13 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 16 0 0 0 0 0 0 0 0 0 0
KeyRelease event, serial 37, synthetic NO, window 0x3a00001,
root 0x259, subw 0x0, time 802402347, (1900,975), root:(3820,1027),
state 0x10, keycode 172 (keysym 0x1008ff14, XF86AudioPlay), same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False
Adding init and changing order did not make XF86AudioPlay work but on the other hand did not break Control+Alt+P and Control+Alt+O which continue to work.
Here's what I added / changed order of:
Keybinder.init()
key = Keybinder # The module to bind keys
key.init() # Call the mainloop something like Gtk.main()
Reply to comments 2
Added:
if not Keybinder.bind("<control><alt>p", A.say, "Bad News 1"):
print "Keybinder.bind() failed 1."
if not Keybinder.bind("<XF86AudioPlay>", A.say, "Bad News 2"):
print "Keybinder.bind() failed 2."
The first keybinder is successful but the second one prints to terminal:
Keybinder.bind() failed 2.
