PySimpleGUI中的热键

Question

我想用PySimpleGUI编写一个完全可以通过键盘使用的图形用户界面。基于以下示例代码：

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()

如何添加热键，可以使用Alt+O按下OK-Button？OK-Button上的O应该加下划线：

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Answer 1

派生自：https://github.com/PySimpleGUI/PySimpleGUI/issues/4122的极简工作示例

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()