Scope <or> PyQt question

dittonamed dittonamed at gmail.com
Thu Jul 26 18:00:44 CEST 2007


On Jul 26, 10:15 pm, Stargaming <stargam... at gmail.com> wrote:
> On Thu, 26 Jul 2007 06:41:44 -0700, dittonamed wrote:
> > Code pasted below ----->
>
> > Can anyone out there suggest a way to access the object "p" thats
> > started in playAudio() from inside the stopAudio()? I need the object
> > reference to use QProcess.kill() on it. The code sample is below. Thanks
> > to anyone who helps out =)
>
> > More comments in the code below  ------>
>
> > from qt import *
>
> > class Form2(QMainWindow):
> >     def __init__(self,parent = None,name = None,fl = 0):
> >         QMainWindow.__init__(self,parent,name,fl) self.statusBar()
>
> >     def playAudio(self):
> >         p = QProcess(self, 'player')
> >         playcmd = '/usr/bin/play'
> >         filename = 'song.ogg'
> >         p.addArgument(playcmd)
> >         p.addArgument(filename)
> >         p.start()
>
> >     def stopAudio(self):
> >         ''' #This is just to show that i can "see" the object, though
> > i
> >            #dont know how to "access" it
> >            #the output shows the QProcess object by name... # but how do
> >            i reference it??
> >         allobjs = list(QObject.objectTrees()) for obj in allobjs:
> >                 objName = QObject.name(obj)
> >                 if objName == 'Form2':
> >                         print QObject.children(obj)
> >         '''
>
> >         QProcess.kill(NEED THE REFERENCE HERE)
>
> Answering from a non-Qt point of view (ie. I don't know if there were
> cleaner ways using Qt stuff), you have to bind p somewhere not local to
> the function. Any attribute of `self` (that's hopefully not used by
> QMainWindow) should be fine.- Hide quoted text -
>
> - Show quoted text -

I was having trouble getting that to work and thought it because of
event driven nature of gui/qt programming. But i'll give it another go
anyway .. any examples? ;-)

Im wondering what the "right" way to do this is - the Qt way, or is
what you mentioned in fact the "right" way? Can i access the QObject
another way or am i barking up the wrong tree?

Thanks Stargaming and to anyone else who has some input!

Ben




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