Check if button is pressed in QGIS 3 module





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3















There is a plugin I wrote for QGIS and I added some buttons there.
From main launch Python script I need to check is specific button is clicked and according to that do some stuff.



I saw a default condition in main script:



def run(self):
if self.first_start == True:
self.first_start = False
self.dlg = frame_builderDialog()
self.dlg.show()
result = self.dlg.exec_()
if result:
pass
'or do something'


In this case I can catch event if I had an "OKCancel" button. But I have another simple buttons. I tried to catch them using something like



result_btn = self.dlg.pushButton.clicked


where pushButton is one of the buttons taken from script with dialog, but nothing were returned.



What should be done here?










share|improve this question































    3















    There is a plugin I wrote for QGIS and I added some buttons there.
    From main launch Python script I need to check is specific button is clicked and according to that do some stuff.



    I saw a default condition in main script:



    def run(self):
    if self.first_start == True:
    self.first_start = False
    self.dlg = frame_builderDialog()
    self.dlg.show()
    result = self.dlg.exec_()
    if result:
    pass
    'or do something'


    In this case I can catch event if I had an "OKCancel" button. But I have another simple buttons. I tried to catch them using something like



    result_btn = self.dlg.pushButton.clicked


    where pushButton is one of the buttons taken from script with dialog, but nothing were returned.



    What should be done here?










    share|improve this question



























      3












      3








      3








      There is a plugin I wrote for QGIS and I added some buttons there.
      From main launch Python script I need to check is specific button is clicked and according to that do some stuff.



      I saw a default condition in main script:



      def run(self):
      if self.first_start == True:
      self.first_start = False
      self.dlg = frame_builderDialog()
      self.dlg.show()
      result = self.dlg.exec_()
      if result:
      pass
      'or do something'


      In this case I can catch event if I had an "OKCancel" button. But I have another simple buttons. I tried to catch them using something like



      result_btn = self.dlg.pushButton.clicked


      where pushButton is one of the buttons taken from script with dialog, but nothing were returned.



      What should be done here?










      share|improve this question
















      There is a plugin I wrote for QGIS and I added some buttons there.
      From main launch Python script I need to check is specific button is clicked and according to that do some stuff.



      I saw a default condition in main script:



      def run(self):
      if self.first_start == True:
      self.first_start = False
      self.dlg = frame_builderDialog()
      self.dlg.show()
      result = self.dlg.exec_()
      if result:
      pass
      'or do something'


      In this case I can catch event if I had an "OKCancel" button. But I have another simple buttons. I tried to catch them using something like



      result_btn = self.dlg.pushButton.clicked


      where pushButton is one of the buttons taken from script with dialog, but nothing were returned.



      What should be done here?







      qgis pyqgis qt pyqt5






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited 17 hours ago









      Vince

      14.8k32849




      14.8k32849










      asked 19 hours ago









      Pavel PereverzevPavel Pereverzev

      491211




      491211






















          2 Answers
          2






          active

          oldest

          votes


















          3














          In python you have "events" and "events handler". when an event occurs they usually (not always...) generate a signal that can be caught by the event handler.



          for example :



          curLayer.selectionChanged.connect(self.test)


          the event is selectionChanged and the event handler is the function handling the signal received (in that case the handler should be a function (written by you) called test (or any other naming ofc).



          your snippet :



          result_btn = self.dlg.pushButton.clicked


          Is meaningless (imho ...)



          So ... in your case u should try an



          self.dlg.pushButton.clicked.connect(self.my_event_handler)


          And write an my_event_handler function of course.






          share|improve this answer

































            2














            You could connect the pushButton to a function so that when it is clicked, it will do something:



            result_btn = self.dlg.pushButton.clicked.connect(self.someFunction)





            share|improve this answer
























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              2 Answers
              2






              active

              oldest

              votes








              2 Answers
              2






              active

              oldest

              votes









              active

              oldest

              votes






              active

              oldest

              votes









              3














              In python you have "events" and "events handler". when an event occurs they usually (not always...) generate a signal that can be caught by the event handler.



              for example :



              curLayer.selectionChanged.connect(self.test)


              the event is selectionChanged and the event handler is the function handling the signal received (in that case the handler should be a function (written by you) called test (or any other naming ofc).



              your snippet :



              result_btn = self.dlg.pushButton.clicked


              Is meaningless (imho ...)



              So ... in your case u should try an



              self.dlg.pushButton.clicked.connect(self.my_event_handler)


              And write an my_event_handler function of course.






              share|improve this answer






























                3














                In python you have "events" and "events handler". when an event occurs they usually (not always...) generate a signal that can be caught by the event handler.



                for example :



                curLayer.selectionChanged.connect(self.test)


                the event is selectionChanged and the event handler is the function handling the signal received (in that case the handler should be a function (written by you) called test (or any other naming ofc).



                your snippet :



                result_btn = self.dlg.pushButton.clicked


                Is meaningless (imho ...)



                So ... in your case u should try an



                self.dlg.pushButton.clicked.connect(self.my_event_handler)


                And write an my_event_handler function of course.






                share|improve this answer




























                  3












                  3








                  3







                  In python you have "events" and "events handler". when an event occurs they usually (not always...) generate a signal that can be caught by the event handler.



                  for example :



                  curLayer.selectionChanged.connect(self.test)


                  the event is selectionChanged and the event handler is the function handling the signal received (in that case the handler should be a function (written by you) called test (or any other naming ofc).



                  your snippet :



                  result_btn = self.dlg.pushButton.clicked


                  Is meaningless (imho ...)



                  So ... in your case u should try an



                  self.dlg.pushButton.clicked.connect(self.my_event_handler)


                  And write an my_event_handler function of course.






                  share|improve this answer















                  In python you have "events" and "events handler". when an event occurs they usually (not always...) generate a signal that can be caught by the event handler.



                  for example :



                  curLayer.selectionChanged.connect(self.test)


                  the event is selectionChanged and the event handler is the function handling the signal received (in that case the handler should be a function (written by you) called test (or any other naming ofc).



                  your snippet :



                  result_btn = self.dlg.pushButton.clicked


                  Is meaningless (imho ...)



                  So ... in your case u should try an



                  self.dlg.pushButton.clicked.connect(self.my_event_handler)


                  And write an my_event_handler function of course.







                  share|improve this answer














                  share|improve this answer



                  share|improve this answer








                  edited 16 hours ago

























                  answered 18 hours ago









                  snaileatersnaileater

                  1,629613




                  1,629613

























                      2














                      You could connect the pushButton to a function so that when it is clicked, it will do something:



                      result_btn = self.dlg.pushButton.clicked.connect(self.someFunction)





                      share|improve this answer




























                        2














                        You could connect the pushButton to a function so that when it is clicked, it will do something:



                        result_btn = self.dlg.pushButton.clicked.connect(self.someFunction)





                        share|improve this answer


























                          2












                          2








                          2







                          You could connect the pushButton to a function so that when it is clicked, it will do something:



                          result_btn = self.dlg.pushButton.clicked.connect(self.someFunction)





                          share|improve this answer













                          You could connect the pushButton to a function so that when it is clicked, it will do something:



                          result_btn = self.dlg.pushButton.clicked.connect(self.someFunction)






                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered 18 hours ago









                          JosephJoseph

                          58.7k7101206




                          58.7k7101206






























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