python - Value in MainWindow returned from childWindow -
how send value childwindow mainwindow once childwindow closed?.
when "closebutton" in childwindow pressed, childwindow sends calculated value mainwindow.
i did test this:
def closeevent(self, evnt): value = 34 return value and didn't work, got this:
typeerror: invalid result type childwindow.closeevent()
here simple example how can that:
import sys pyqt4 import qtgui class window(qtgui.qwidget): def __init__(self): qtgui.qwidget.__init__(self) self.button = qtgui.qpushbutton("make child") self.button.clicked.connect(self.openchildwindow) layout = qtgui.qvboxlayout(self) layout.addwidget(self.button) def openchildwindow(self): self.childwindow = childwindow(self) self.childwindow.setgeometry(650, 350, 200, 300) self.childwindow.show() def printresult(self, value): print value class childwindow(window): def __init__(self, parentwindow): super(childwindow, self).__init__() self.parentwindow = parentwindow self.parentwindow.printresult("i'm in child init") self.button.setdisabled(1) def closeevent(self, event): self.parentwindow.printresult("closing child, text returned parent") if __name__ == '__main__': app = qtgui.qapplication(sys.argv) window = window() window.setgeometry(600, 300, 200, 300) window.show() sys.exit(app.exec_())
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