PySimpleGUI/DemoPrograms/Demo_Buttons_Realtime.py at master · PySimpleGUI/PySimpleGUI · GitHub

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#!/usr/bin/env python

"""

Demo - Realtime Buttons

Realtime buttons provide a way for you to get a continuous stream of button

events for as long as a button is held down.

This demo is using a timeout to determine that a button has been released.

If your application doesn't care when a button is released and only needs to know

that it's being held down, then you can remove the timeout on the window read call.

Note that your reaction latency will be the same as your timeout value. In this demo

the timeout is 100, so there will be 100ms between releasing a button and your program detecting

this has happened.

"""

import PySimpleGUI as sg

def main():

# The Quit button is being placed in the bottom right corner and the colors are inverted, just for fun

layout = [[sg.Text('Robotics Remote Control')],

[sg.Text('Hold Down Button To Move')],

[sg.Text()],

[sg.Text(' '),

sg.RealtimeButton(sg.SYMBOL_UP, key='-FORWARD-')],

[sg.RealtimeButton(sg.SYMBOL_LEFT, key='-LEFT-'),

sg.Text(size=(10,1), key='-STATUS-', justification='c', pad=(0,0)),

sg.RealtimeButton(sg.SYMBOL_RIGHT, key='-RIGHT-')],

[sg.Text(' '),

sg.RealtimeButton(sg.SYMBOL_DOWN, key='-DOWN-')],

[sg.Text()],

[sg.Column([[sg.Quit(button_color=(sg.theme_button_color()[1], sg.theme_button_color()[0]), focus=True)]], justification='r')]]

window = sg.Window('Robotics Remote Control', layout)

while True:

# This is the code that reads and updates your window

event, values = window.read(timeout=100)

if event in (sg.WIN_CLOSED, 'Quit'):

break

if event != sg.TIMEOUT_EVENT:

# if not a timeout event, then it's a button that's being held down

window['-STATUS-'].update(event)

else:

# A timeout signals that all buttons have been released so clear the status display

window['-STATUS-'].update('')

window.close()

if __name__ == '__main__':

sg.theme('dark red')

main()

PySimpleGUI/DemoPrograms/Demo_Buttons_Realtime.py at master · PySimpleGUI/PySimpleGUI · GitHub

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