Function main

DemoPrograms/Demo_Long_Operations.py:83–109

()

# This is your new code that uses a thread to perform the long operation

def main():
    layout = [  [sg.Text('Indirect Call Version')],
                [sg.Text('How many times to run the loop?'), sg.Input(s=(4,1), key='-IN-')],
                [sg.Text(s=(30,1), k='-STATUS-')],
                [sg.Button('Go', bind_return_key=True), sg.Button('Exit')]  ]

    window = sg.Window('Window Title', layout)

    while True:             # Event Loop
        event, values = window.read()
        print(event, values)
        if event == sg.WIN_CLOSED or event == 'Exit':
            break
        elif event == 'Go':
            window['-STATUS-'].update('Calling your function...')
            if values['-IN-'].isnumeric():

                # This is where the magic happens.  Add your function call as a lambda
                window.perform_long_operation(lambda :
                                              my_long_func(int(values['-IN-']), a=10),
                                              '-END KEY-')
            else:
                window['-STATUS-'].update('Try again... how about an int?')
        elif event == '-END KEY-':
            return_value = values[event]
            window['-STATUS-'].update(f'Completed. Returned: {return_value}')
    window.close()


'''