Have a look at this example on how to connect events to callbacks in Gtk 3 and Python. In short, you use the
connect() method to connect a signal name (which is emitted when an event such as a button click occurs) to a callback, which is the function that will handle your event.
# Other initialization code
# We create a button
self.button = Gtk.Button(label="Click Here")
# We connect the 'clicked' signal to the callback
def on_button_clicked(self, widget):
# This function will be called whenever the user presses the button
print "Hello World"
You can also watch the Gtk3 Introduction Workshop video that is part of the Ubuntu App Showdown.
If you're using Glade, you will need to make to make sure that the
on_<name-of-your-button>_clicked() callback is defined in the code as a method of your window.
If you're using Quickly, that's all you'll need to worry about.
Otherwise, you'll need to manually connect the signal to the callback. You've got two options:
- Do it in the code with
self.builder.get_object('name-of-your-button').connect() - assuming
builder is the name of your
Gtk.Builder() in which you've loaded your Glade UI.
- Do it with Glade looking at the properties of your button, choosing the signals tab and then writing the name of your callback in the 'clicked' signal.