StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
text
Body
copied!<p>I know this post is pretty old, but I just stumbled across it, maybe you will too and now this saves your day ;) ok... by the way, it's my first post here on SO, yey!</p> <p>WARNING, i did not test this code, i just copied some snippets of code i wrote some time ago, so, there may be some error, but I hope it helps anyway</p> <p>PyQt's new style signals briefly:</p> <pre><code># notice that the signal declarations are at class level (not inside some method) class MyClass(QObject): # must subclass QObject (or subclass) # declaring signals mySimpleSignal = pyqtSignal() mySignalWithArguments = pyqtSignal(int, list) myOverloadedSignal = ([int, object],[str,object]) def __init__(self, parent=None): super(MyClass,self).__init__(parent=parent) # remember to init the super class [...] # methods [...] # connecting signals def connectSignalsMethod(self): # connecting simple signal self.mySimpleSignal.connect(self.mySlot) # connecting signal with arguments self.mySignalWithArguments.connect(self.mySlotWithArguments) # connecting overloaded signals self.myOverloadedSignal[int, object].connect(self.mySlot1) self.myOverloadedSignal[str, object].connect(self.mySLot2) # same syntax for disconnect() # emitting signals def emitSignalsMethod(self): # emitting simple signal self.mySimpleSignal.emit() # emitting signal with arguments self.mySignalWithArguments.emit(123,['this','is','a','list']) # emitting overloaded signal myOverloadedSignal[str,object].emit('this is a string', myObject) # my slots @pyqtSlot() def mySlot(self): print('hey!') @pyqtSlot(int, list) def mySlotWithArguments(self, someNumber, someList): print('got a number: %d and a list: %s' % (someNumber, someList)) @pyqtSlot(int, object) def mySlot1(self, intArg, objectArg): print('got an int and an object') @pyqtSlot(str, object) def mySlot2(self, str, object): print('got a string and an object') # an overloaded slot @pyqtSignal(int) @pyqtSignal(str) def overloadedSlot(someArgument) print('got something: %s' % someArgument) </code></pre> <p>otherwise, try this <a href="http://www.harshj.com/2010/05/06/pyqt-faq-custom-signals-jpeg-mouse-hovers-and-more/#custom" rel="nofollow">http://www.harshj.com/2010/05/06/pyqt-faq-custom-signals-jpeg-mouse-hovers-and-more/#custom</a></p> <p>Edit: events and signals are not the same, what you see above is about signals</p>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload