CODEWITHSUNDEEP
pyqt4
James Franco
James Franco

Reputation: 4706

Creating a signal with parameters in PyQt

I am using the following example

class bar(QObject):
    def mySlot(self,p):
        print "This is my slot " + str(p)


class Foo(QObject):
    trigger = pyqtSignal()

    def my_connect_and_emit_trigger(self):
        self.trigger.emit(12)

    def handle_trigger(self):
        # Show that the slot has been called.
        print "trigger signal received"


b = bar()
a = Foo()
a.trigger.connect(int,b.mySlot) <---how to fix this
a.connect_and_emit_trigger()

I am trying to attach the slot b.mySlotwhich takes one int parameter to a signal a.trigger my question is what am I doing wrong. I could not find any material that helps with parameters of signals.

Upvotes: 2

Views: 2331

Answers (1)

Controlix
Controlix

Reputation: 447

this is correct:

class bar(QObject):
    def mySlot(self,p):
        print "This is my slot " + str(p)


class Foo(QObject):
    trigger = pyqtSignal(int)

    def my_connect_and_emit_trigger(self):
        self.trigger.emit(12)

    def handle_trigger(self):
        # Show that the slot has been called.
        print "trigger signal received"


b = bar()
a = Foo()
a.trigger.connect(b.mySlot)
a.my_connect_and_emit_trigger()

Doc is here

Upvotes: 3

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