尝试绑定到您的主要变量:
from Tkinter import *
main = Tk()
def leftKey(event):
print "Left key pressed"
def rightKey(event):
print "Right key pressed"
frame = Frame(main, width=100, height=100)
main.bind('<Left>', leftKey)
main.bind('<Right>', rightKey)
frame.pack()
main.mainloop()
我应该解释这是因为 Tk 知道绑定,因为主窗口具有键盘焦点。正如@BryanOakley 的回答所解释的,您也可以将键盘焦点设置到另一个框架:
from Tkinter import *
main = Tk()
def leftKey(event):
print "Left key pressed"
def rightKey(event):
print "Right key pressed"
frame = Frame(main, width=100, height=100)
frame.bind('<Left>', leftKey)
frame.bind('<Right>', rightKey)
frame.focus_set()
frame.pack()
main.mainloop()
在 effbot 上查看有关事件和绑定的更多信息。
此外,您还可以重新编写它,以便您的应用程序是这样的子类Tkinter.Frame
:
import Tkinter
class Application(Tkinter.Frame):
def __init__(self, master):
Tkinter.Frame.__init__(self, master)
self.master.minsize(width=100, height=100)
self.master.config()
self.master.bind('<Left>', self.left_key)
self.master.bind('<Right>', self.right_key)
self.main_frame = Tkinter.Frame()
self.main_frame.pack(fill='both', expand=True)
self.pack()
@staticmethod
def left_key(event):
print event + " key pressed"
@staticmethod
def right_key(event):
print event + " key pressed"
root = Tkinter.Tk()
app = Application(root)
app.mainloop()