Help with pysignals with QT

[Boudewijn Rempt]

root <root at localhost.localdomain> wrote:

> I have been trying various permutations around this for several days 
> without success, I dont know if the signal isn't being emitd or if theres 
> something wrong with my connect statement.

Here's a working version. (I've taken the liberty of
changing confusing statements like test=test() to
test=Test().)

from qt import *
import sys
         
class Test(QObject):

    def __init__(self):
         QObject.__init__(self)
        
    def send(self):
         print "about to emit"   
         self.emit(PYSIGNAL("pySig"),())
         print "emit"
         
class Message:

    def hello(self):
        print "The slot called"

class Join:

    def __init__(self):
        print "in join"
        self.m = Message()
        self.t = Test()
        QObject.connect(self.t, PYSIGNAL('pySig'),
				                self.m.hello)
        print "connected"

j = Join()
j.t.send()

First, you don't need the QApplication object. QObject.connect
is a static in C++, and a class method in Python, so you
call it directly. Secondly, you initially didn't call send() on
the right object.

I take it you know already about the book at http://www.opendocs.org?
It should have been printed now, and I expect to be very busy setting
up the web forum with downloads of updated code, errata and so on.

-- 

Boudewijn Rempt  | http://www.valdyas.org