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Hotkeys in PySimpleGUI

I'd like to write a GUI with PySimpleGUI that can be used entirely by keyboard. Based on the following sample code:
import PySimpleGUI as sg
layout = [[sg.Text("Hello from PySimpleGUI")], [sg.Button(button_text="OK")]]
window = sg.Window("Demo", layout)
while True:
event, values = window.read()
if event == "OK" or event == sg.WIN_CLOSED:
break
window.close()
How can I add a hotkey which I can press using Alt+O to press the OK-Button? The O on the OK-Button should be underlined:

A minimalist working example derived from: https://github.com/PySimpleGUI/PySimpleGUI/issues/4122
import PySimpleGUI as sg
layout = [
[sg.Button("ok", size=(10, 2), key='button1'),
sg.Button("exit", size=(10, 2), key='button2')],
]
window = sg.Window('Hotkeys', layout, use_default_focus=False, finalize=True)
button1, button2 = window['button1'], window['button2']
window.bind("<Alt_L><o>", "ALT-o")
window.bind("<Alt_L><x>", "ALT-x")
button1.Widget.configure(underline=0, takefocus=0)
button2.Widget.configure(underline=1, takefocus=0)
while True:
event, values = window.read()
if event == sg.WINDOW_CLOSED:
break
elif event in ("button1", "ALT-o"):
print('OK')
elif event in ("button2", "ALT-x"):
break
window.close()

comment a line of code if checkbox checked Pysimplegui

how can i comment/uncomment a line of code by checking and unchecking a checkbox in python with PySimpleGUI?
also i don't know if i wrote the code in correct way but i'm just trying to comment a line of code by checking the checkbox
any other way to do it is also fix my problem
This is my code
layout = [[sg.Text('Choose Options'))],
[sg.Checkbox('Save Posts',key="save-ed")],
[sg.Submit('Next')) ,sg.Cancel("Cancel"))] ]
window = sg.Window('my bot', layout, icon="logo.ico")
event, values = window.read()
window.close()
while True:
event, values = window.read()
if event == sg.WIN_CLOSED or event == "Cancel":
break
elif values['save-ed'] == True:
save_input = ['usersave']
elif values['save-ed'] == False:
save_input = ['#usersave']
and this is the code which i want to comment or uncomment with checkbox
try:
save_input = webdriver.find_element_by_xpath('/html/body/div[4]/div[2]/div/article/div[3]/section[1]/span[4]/div/div/button/div')
save_input.click()
sleep(randint(4,5))
except NoSuchElementException:
pass

Following code show how to stop a thread to update time by a checkbox.
from datetime import datetime
from time import sleep
import threading
import PySimpleGUI as sg
def clock(window):
now = None
while timer:
new = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
if new != now:
now = new
if flag:
window.write_event_value('CLOCK', now)
sleep(0.1)
sg.theme("DarkBlue3")
sg.set_options(font=("Courier New", 16))
layout = [
[sg.Text("", size=(0, 1), key='TIME')],
[sg.Checkbox("Time ON", default=True, enable_events=True, key='TIME ON')],
]
window = sg.Window('Title', layout, finalize=True)
timer, flag = True, True
threading.Thread(target=clock, args=(window,), daemon=True).start()
while True:
event, values = window.read()
if event == sg.WINDOW_CLOSED:
timer = False
break
elif event == 'TIME ON':
flag = values[event]
elif event == 'CLOCK':
window['TIME'].update(values[event])
window.close()

according to previous comment and answer by #jason-yang
i got the point and changed the code like this and fixed my problem
layout = [[sg.Text('Choose Options'))],
[sg.Checkbox('Save Posts',key="save-ed")],
[sg.Submit('Next')) ,sg.Cancel("Cancel"))] ]
window = sg.Window('my bot', layout, icon="logo.ico")
event, values = window.read()
window.close()
while True:
event, values = window.read()
if event == sg.WIN_CLOSED or event == "Cancel":
break
if event == "save posts":
if values['save-ed'] == True:
save_input = values['usersave']
elif values['save-ed'] == False:
save_input = values['#usersave']
the rest of the code seems to be correct and i leave it unchanged
try:
save_input = webdriver.find_element_by_xpath('/html/body/div[4]/div[2]/div/article/div[3]/section[1]/span[4]/div/div/button/div')
save_input.click()
sleep(randint(4,5))
except NoSuchElementException:
pass

Using 'esc' to close PySimpleGUI window

I have a PySimpleGUI window that I want to maximise, eventually without a title bar. I want to use the 'esc' key to close the window.
Here's my (simplified) code:
import msvcrt
import PySimpleGUI as sg
layout = [[sg.Text(size=(40, 1), font=("Arial", (32)), justification='left', key='-TEXT-')]]
window = sg.Window(title="Window", layout=layout, grab_anywhere=True, finalize = True, no_titlebar=False)
window.maximize()
escape = False
while True:
event, values = window.read()
if msvcrt.kbhit() and msvcrt.getch() == chr(27).encode():
escape = True
else:
ecape = False
if event == sg.WIN_CLOSED or event == 'Cancel' or escape == True:
break
window.close()
The close button works fine - but pressing escape does nothing.
I've tried several of the answers here, but with no luck.
What's going wrong, and how can I fix it?

Bind event "<Escape>" to window to generate an event,
import PySimpleGUI as sg
layout = [[sg.Text(size=(40, 1), font=("Arial", (32)), justification='left', key='-TEXT-')]]
window = sg.Window(title="Window", layout=layout, grab_anywhere=True, finalize = True, no_titlebar=False)
window.maximize()
window.bind("<Escape>", "-ESCAPE-")
while True:
event, values = window.read()
if event in (sg.WINDOW_CLOSED, "-ESCAPE-"):
break
print(event, values)
window.close()

Solved.
As #knosmos pointed out, getch is only for the command line. Adding return_keyboard_events=True and event == 'Escape:27' did the trick.

How do I respond to window resize in PySimpleGUI

How can I get notified when the window is resized in PySimpleGUI?
I have a window that enables resize events, but I'm not finding a way to move the elements around when that resize occurs, so my window renames top left centered the same size when the window changes size.
Here is the basic code:
import PySimpleGUI as sg
layout = [[sg.Button('Save')]]
window = sg.Window('Window Title',
layout,
default_element_size=(12, 1),
resizable=True) # this is the change
while True:
event, values = window.read()
if event == 'Save':
print('clicked save')
if event == sg.WIN_MAXIMIZED: # I just made this up, and it does not work. :)
window.maximize()
if event == sg.WIN_CLOSED:
break

Adding tkinter events to windows results in callback on change of windows size
import PySimpleGUI as sg
layout = [[sg.Button('Save')]]
window = sg.Window('Window Title',
layout,
default_element_size=(12, 1),
resizable=True,finalize=True) # this is the chang
window.bind('<Configure>',"Event")
while True:
event, values = window.read()
if event == 'Save':
print('clicked save')
if event == "Event":
print(window.size)
if event == sg.WIN_CLOSED:
print("I am done")
break

You need to bind "<Configure>" event to check zoomed event.
import PySimpleGUI as sg
layout = [[sg.Text('Window normal', size=(30, 1), key='Status')]]
window = sg.Window('Title', layout, resizable=True, finalize=True)
window.bind('<Configure>', "Configure")
status = window['Status']
while True:
event, values = window.read()
if event == sg.WINDOW_CLOSED:
break
elif event == 'Configure':
if window.TKroot.state() == 'zoomed':
status.update(value='Window zoomed and maximized !')
else:
status.update(value='Window normal')
window.close()

How to resize sg.window in PYsimpleGUI?

I am using PYsimpleGUI in my python code, and while using the window element to create the main window, this is my code.
My code:
import PySimpleGUI as sg
layout = [ [sg.Button('Close')] ]
window = sg.Window('This is a long heading.', layout)
while True:
event, values = window.read()
if event == sg.WIN_CLOSED or event == 'Close':
break
break
window.close()
I notice that when I run this program, the full heading is not shown as the window resizes itself and becomes small.
Is there a way to resize sg.window?

You can add size argument in the sg.Window.
Try this :
import PySimpleGUI as sg
layout = [ [sg.Button('Close')] ]
window = sg.Window('This is a long heading.', layout,size=(290, 50))
while True:
event, values = window.read()
if event == sg.WIN_CLOSED or event == 'Close':
break
break
window.close()