python模块tkinter的events

原文

1. event binding

from Tkinter import *

root = Tk()

def key(event):
    print "pressed", repr(event.char)

def callback(event):
    frame.focus_set()
    print "clicked at", event.x, event.y

frame = Frame(root, width=100, height=100)
frame.bind("<Key>", key)
frame.bind("<Button-1>", callback)
frame.pack()

root.mainloop()

2. events

<Button-1>
<B1-Motion>
<ButtonRelease-1>
<Double-Button-1>
<Enter>
<Leave>
<FocusIn>
<FocusOut>
<Return>
<Key>
a # The user typed an “a”.
<Shift-Up> # The user pressed the Up arrow, while holding the Shift key pressed.
<Configure> # The widget changed size (or location, on some platforms)

1. event object

# get the event object
def key(event):
    print "pressed", repr(event.char)
    print "clicked at", event.x, event.y
# attributes
widget
x, y
x_root, y_root
char
keysym
keycode
num
width, height
type

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