[Question] I am trying to add bind to element, maybe button, but not found any widget to bind,

[jason990420]

Type of Issues (Question)

bind() is a method of widget in tkinter and Button used here is in PySimpleGUI. In fact, element and widget are different. To call bind, I need to convert element to widget. Checked source code of Tkinter and PySimpleGUI, it seems that it should be TKButton, but failed for widget TKButton is None. So I checked instance of element Button, got result as below. It seems no any widget. How I can do ?

>>> p = button.__dict__
>>> print(*p.items(), sep='\n')

('AutoSizeButton', None)
('BType', 7)
('FileTypes', (('ALL Files', '*.*'),))
('Widget', None)
('TKButton', None)
('Target', (None, None))
('ButtonText', 'Test')
('ButtonColor', ('white', '#517239'))
('ImageFilename', None)
('ImageData', None)
('ImageSize', (None, None))
('ImageSubsample', None)
('UserData', None)
('BorderWidth', 1)
('BindReturnKey', False)
('Focus', False)
('TKCal', None)
('CalendarCloseWhenChosen', None)
('DefaultDate_M_D_Y', (None, None, None))
('InitialFolder', None)
('Disabled', False)
('ChangeSubmits', False)
('Size', (None, None))
('Type', 'button')
('AutoSizeText', None)
('Pad', None)
('Font', None)
('TKStringVar', None)
('TKIntVar', None)
('TKText', None)
('TKEntry', None)
('TKImage', None)
('ParentForm', None)
('ParentContainer', <PySimpleGUI.PySimpleGUI.Window object at 0x00000000017C0EB8>)
('TextInputDefault', None)
('Position', (0, 0))
('BackgroundColor', '#82a459')
('TextColor', 'black')
('Key', 'Test')
('Tooltip', None)
('TooltipObject', None)
('Visible', True)
('TKRightClickMenu', None)
('Tearoff', False)
('ParentRowFrame', None)
('metadata', None)

Operating System

Win10

Python version

Python 3.7.2

PySimpleGUI Port and Version

PySimpleGUI 4.6.0

Your Experience Levels In Months or Years

_2 yrs Python programming experience
>20 yrs Programming experience overall
_tkinter only Have used another Python GUI Framework (tkiner, Qt, etc) previously (yes/no is fine)?

You have completed these steps:

• Read instructions on how to file an Issue
• Searched through main docs http://www.PySimpleGUI.org for your problem
• Searched through the readme for your specific port if not PySimpleGUI (Qt, WX, Remi)
• Looked for Demo Programs that are similar to your goal http://www.PySimpleGUI.com
• Note that there are also Demo Programs under each port on GitHub
• Run your program outside of your debugger (from a command line)
• Searched through Issues (open and closed) to see if already reported

Code or partial code causing the problem

import PySimpleGUI as sg

def right_click(self, event):
    # don't care here, maybe it still not working
    self.event_generate('<Button-3>', x=event.x, y=event.y)
    return 'break'

layout = [[sg.Button('Test', key='BTTN')]]
window = sg.Window('Test', layout=layout)

window['BTTN'].Widget.bind('<Button-3>', right_click)

while True:

    event, values = window.read()
    print(event, values)

    if event == None:
        break

window.close()

Traceback (most recent call last):
  File "<string>", line 179, in run_nodebug
  File "D:\Project\Minesweeper\test.py", line 11, in <module>
    window['BTTN'].Widget.bind('<Button-3>', right_click)
AttributeError: 'NoneType' object has no attribute 'bind'

[MikeTheWatchGuy]

You must Finalize first

[jason990420]

forgot to put it into my code, Thank you, it work now, and I am going to update event handler.
After Finalized, I can bind event handler now.

('Widget', <tkinter.Button object .!toplevel37.!frame.!button>)
('TKButton', <tkinter.Button object .!toplevel37.!frame.!button>)