python - PyQt4 signals and slots -
i writing first python app pyqt4. have mainwindow , dialog class, part of mainwindow class:
self.logindialog = logindialog();
i use slots , signals. here's connection made in mainwindow:
qtcore.qobject.connect(self.logindialog, qtcore.signal("aa(str)"), self.login)
and try emit signal inside dialog class (i'm sure emitted):
self.emit(qtcore.signal("aa"), "jacek")
unfortunately, slot not invoked. tried no arguments well, different styles of emitting signal. no errors, no warnings in code. might problem?
you don't use same signal, when emitting , connecting.
qtcore.signal("aa(str)")
not same qtcore.signal("aa")
. signals must have same signature. way, if defining own signals, don't define parametres. write signal('aa'), because defining parametres thing c++ , python version of qt doesn't need this.
so should this:
qtcore.qobject.connect(self.logindialog, qtcore.signal("aa"), self.login)
and if pass parametres in emit, login method must accept parametres. check, if helps :-)
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