python - PyQt4 ---- I want to use closeEvent() in my code -


i python newbie. developing pr-room management program. think if user presses x button , want give warning message . so, want use closeevent() in first code. in other words, first code + second code please

# -*- coding: utf-8 -*-  # form implementation generated reading ui file 'c:\users\pjh11\desktop\dia3.ui' # # created: sun aug 17 16:23:08 2014 #      by: pyqt4 ui code generator 4.11.1 # # warning! changes made in file lost!  pyqt4 import qtcore, qtgui  try:     _fromutf8 = qtcore.qstring.fromutf8 except attributeerror:     def _fromutf8(s):         return s  try:     _encoding = qtgui.qapplication.unicodeutf8     def _translate(context, text, disambig):         return qtgui.qapplication.translate(context, text, disambig, _encoding) except attributeerror:     def _translate(context, text, disambig):         return qtgui.qapplication.translate(context, text, disambig)  class ui_dialog(object):     def setupui(self, dialog):         dialog.setobjectname(_fromutf8("dialog"))         dialog.resize(190, 98)         self.pushbutton = qtgui.qpushbutton(dialog)         self.pushbutton.setgeometry(qtcore.qrect(0, 0, 191, 101))         font = qtgui.qfont()         font.setpointsize(13)         self.pushbutton.setfont(font)         self.pushbutton.setobjectname(_fromutf8("pushbutton"))          self.retranslateui(dialog)         qtcore.qmetaobject.connectslotsbyname(dialog)      def retranslateui(self, dialog):         dialog.setwindowtitle(_translate("dialog", "dialog", none))         self.pushbutton.settext(_translate("dialog", "hi", none))   if __name__ == "__main__":     import sys     app = qtgui.qapplication(sys.argv)     dialog = qtgui.qdialog()     ui = ui_dialog()     ui.setupui(dialog)     dialog.show()     sys.exit(app.exec_()) 
def closeevent(self, event):      reply = qtgui.qmessagebox.question(self, 'message',         "are sure quit?", qtgui.qmessagebox.yes |          qtgui.qmessagebox.no, qtgui.qmessagebox.no)      if reply == qtgui.qmessagebox.yes:         event.accept()     else:         event.ignore()

your can implement class create closeevent (as code close event), put them , create object in main. , can call close event using bool qwidget.close (self).

full example;

from pyqt4 import qtcore, qtgui  try:     _fromutf8 = qtcore.qstring.fromutf8 except attributeerror:     def _fromutf8(s):         return s  try:     _encoding = qtgui.qapplication.unicodeutf8     def _translate(context, text, disambig):         return qtgui.qapplication.translate(context, text, disambig, _encoding) except attributeerror:     def _translate(context, text, disambig):         return qtgui.qapplication.translate(context, text, disambig)  class ui_dialog(object):     def setupui(self, dialog):         self.dialog = dialog         self.dialog.setobjectname(_fromutf8("self.dialog"))         self.dialog.resize(190, 98)         self.pushbutton = qtgui.qpushbutton(self.dialog)         self.pushbutton.setgeometry(qtcore.qrect(0, 0, 191, 101))         font = qtgui.qfont()         font.setpointsize(13)         self.pushbutton.setfont(font)         self.pushbutton.setobjectname(_fromutf8("pushbutton"))         self.retranslateui(self.dialog)         qtcore.qmetaobject.connectslotsbyname(self.dialog)         qtcore.qobject.connect(self.pushbutton, qtcore.signal('released()'), self.dialog.close) # <- put signal close when clicked.      def retranslateui(self, dialog):         self.dialog.setwindowtitle(_translate("self.dialog", "self.dialog", none))         self.pushbutton.settext(_translate("self.dialog", "hi", none))  class qcustomdialog (qtgui.qdialog): # <- implement own     def closeevent(self, event):         reply = qtgui.qmessagebox.question(self, 'message',             "are sure quit?", qtgui.qmessagebox.yes |              qtgui.qmessagebox.no, qtgui.qmessagebox.no)         if reply == qtgui.qmessagebox.yes:             event.accept()         else:             event.ignore()  if __name__ == "__main__":     import sys     app = qtgui.qapplication(sys.argv)     dialog = qcustomdialog()     ui = ui_dialog()     ui.setupui(dialog)     dialog.show()     sys.exit(app.exec_())

regards,


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