Question

我正在创建一个应用程序。以前，我使用Gtk.Main()启动我的应用程序，并使用Ctrl+C创建了一些挂钩以从命令行停止应用程序。现在，我已将应用程序迁移到更多标准＆＃34; Gtk.Application，但无法停止使用Ctrl+C。

这是一个非常简单的Gtk.Application，当从命令行运行时，无法使用Ctrl+C停止它：

from gi.repository import Gtk
import sys

# a Gtk ApplicationWindow


class MyWindow(Gtk.ApplicationWindow):
    # constructor: the title is "Welcome to GNOME" and the window belongs
    # to the application app

    def __init__(self, app):
        Gtk.Window.__init__(self, title="Welcome to GNOME", application=app)


class MyApplication(Gtk.Application):
    # constructor of the Gtk Application

    def __init__(self):
        Gtk.Application.__init__(self)

    # create and activate a MyWindow, with self (the MyApplication) as
    # application the window belongs to.
    # Note that the function in C activate() becomes do_activate() in Python
    def do_activate(self):
        win = MyWindow(self)
        # show the window and all its content
        # this line could go in the constructor of MyWindow as well
        win.show_all()

    # start up the application
    # Note that the function in C startup() becomes do_startup() in Python
    def do_startup(self):
        Gtk.Application.do_startup(self)

# create and run the application, exit with the value returned by
# running the program
app = MyApplication()
exit_status = app.run(sys.argv)
sys.exit(exit_status)

Answer 1

import signal
from gi.repository import GLib

...

GLib.unix_signal_add(GLib.PRIORITY_DEFAULT, signal.SIGINT, app.quit)

Answer 2

这与Gtk 3.0一起使用：

import signal
import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk
from gi.repository import GLib

app = Application()
GLib.unix_signal_add(GLib.PRIORITY_DEFAULT, signal.SIGINT, Gtk.main_quit)

Answer 3

您可以使用Ctrl + Z来停止脚本的执行。

使用Ctrl + C停止Python Gtk.Application

3 个答案: