Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
330 views
in Technique[技术] by (71.8m points)

python - Prompt on exit in PyQt application

Is there any way to promt user to exit the gui-program written in Python?

Something like "Are you sure you want to exit the program?"

I'm using PyQt.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

Yes. You need to override the default close behaviour of the QWidget representing your application so that it doesn't immediately accept the event. The basic structure you want is something like this:

def closeEvent(self, event):

    quit_msg = "Are you sure you want to exit the program?"
    reply = QtGui.QMessageBox.question(self, 'Message', 
                     quit_msg, QtGui.QMessageBox.Yes, QtGui.QMessageBox.No)

    if reply == QtGui.QMessageBox.Yes:
        event.accept()
    else:
        event.ignore()

The PyQt tutorial mentioned by las3rjock has a nice discussion of this. Also check out the links from the PyQt page at Python.org, in particular the official reference, to learn more about events and how to handle them.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...