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
537 views
in Technique[技术] by (71.8m points)

python - Mouseover event filter for a PyQT Label

I've been trying to convert the example here to work with a simple label.

Here's the code:

class mouseoverEvent(QtCore.QObject):
    def __init__(self, parent):
        super(mouseoverEvent, self).__init__(parent)
    def eventFilter(self, object, event):
        if event.type() == QtCore.QEvent.MouseMove:
            print "mousemove!"
            
self.filter = mouseoverEvent(self)
self.label.installEventFilter(self.filter)

Now curiously, this actually works, but not without my console being spammed with "mousemove!" (good) as well as the error: TypeError: invalid result type from mouseoverEvent.eventFilter()

I've not quite figured out the complex relationship between events yet, so this is a bit greek to me. So, what gives?

Thanks in advance.

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)

I believe you need to return True or False from the eventFilter, to indicate whether you have handled the event completely or not.


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

...