检查是否在 tkinter 中按下了修饰键 [英] check if modifier key is pressed in tkinter

问题描述

我知道并经常使用绑定语法，但是我怎样才能直接检查事件对象并提取两个按下的字母，例如'c' 和修饰符，例如，'Control' 和 'Alt' ?

I know and use a lot the syntax for binding, but how can I instead check directly the event object and extract both the letter pressed e.g. 'c' and the modifiers e,g,'Control' and 'Alt' ?

我试过了

def reportEvent(event):
        eventDict = {
                '2': 'KeyPress', '3': 'KeyRelease', '4': 'ButtonPress', '5': 'ButtonRelease', '6': 'Motion', '7': 'Enter',
                '8': 'Leave', '9': 'FocusIn', '10': 'FocusOut', '12': 'Expose', '15': 'Visibility', '17': 'Destroy',
                '18': 'Unmap', '19': 'Map', '21': 'Reparent', '22': 'Configure', '24': 'Gravity', '26': 'Circulate',
                '28': 'Property', '32': 'Colormap','36': 'Activate', '37': 'Deactivate'}

        rpt = '\n\n%s' % (80*'=')
        rpt = '%s\nEvent: type=%s (%s)' % (rpt, event.type,eventDict.get(event.type, 'Unknown'))
        rpt = '%s\ntime=%s' % (rpt, event.time)
        rpt = '%s widget=%s' % (rpt, event.widget)
        rpt = '%s x=%d, y=%d'% (rpt, event.x, event.y)
        rpt = '%s x_root=%d, y_root=%d' % (rpt, event.x_root, event.y_root)
        rpt = '%s y_root=%d' % (rpt, event.y_root)
        rpt = '%s\nserial=%s' % (rpt, event.serial)
        rpt = '%s num=%s' % (rpt, event.num)
        rpt = '%s height=%s' % (rpt, event.height)
        rpt = '%s width=%s' % (rpt, event.width)
        rpt = '%s keysym=%s' % (rpt, event.keysym)
        rpt = '%s ksNum=%s' % (rpt, event.keysym_num)
        #### Some event types don't have these attributes
        try:
                rpt = '%s focus=%s' % (rpt, event.focus)
        except:
                try:
                        rpt = '%s send=%s' % (rpt, event.send_event)
                except:
                        pass
        print rpt

被盗到 Python 和 Tkinter 编程，但它没有显示我按下的最终修饰符

stolen to Python and Tkinter Programming,but it doesnt show the eventual modifiers I'm pressing

推荐答案

理论上这将是您问题的答案:

Theoretically this would be the answer for your problem:

from tkinter import *

root = Tk()

mods = {
    0x0001: 'Shift',
    0x0002: 'Caps Lock',
    0x0004: 'Control',
    0x0008: 'Left-hand Alt',
    0x0010: 'Num Lock',
    0x0080: 'Right-hand Alt',
    0x0100: 'Mouse button 1',
    0x0200: 'Mouse button 2',
    0x0400: 'Mouse button 3'
}

root.bind( '<Key>', lambda e: print( 'Key:', e.char,
                                     'Mods:', mods.get( e.state, None )))

root.mainloop()

但是，它无法正常工作——或者至少在我的 110 键布局的匈牙利苹果键盘上没有.

However, it is not working as it should be -- or at least it's not on my hungarian apple keyboard which is a 110 keys layout..

无论如何，这里是事件对象的所有属性:http://infohost.nmt.edu/tcc/help/pubs/tkinter/web/event-handlers.html

Anyway, here are all the properties of the event object: http://infohost.nmt.edu/tcc/help/pubs/tkinter/web/event-handlers.html

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