tkinter: 事件 & 绑定 (Events and Bindings)

目的

tkinter 获取 键盘输入 与 鼠标输入 。

实现代码

# coding=utf-8import tkinter as tkroot = tk.Tk()def center_window(w, h):    # 获取屏幕 宽、高    ws = root.winfo_screenwidth()    hs = root.winfo_screenheight()    # 计算 x, y 位置    x = (ws/2) - (w/2)    y = (hs/2) - (h/2)    root.geometry('%dx%d+%d+%d' % (w, h, x, y))center_window(500, 500)# 单击键盘def key(event):    print "pressed", repr(event.char)# 单击左键def callback_1(event):    #当前框架被选中，意思是键盘触发，只对这个框架有效    frame.focus_set()    print "left clicked at : (window coordinate {}, {}), (screen coordinate {}, {}) ".format(event.x, event.y, event.x_root, event.y_root)# 单击滚轮def callback_2(event):    #当前框架被选中，意思是键盘触发，只对这个框架有效    frame.focus_set()    print "middle clicked at : (window coordinate {}, {}), (screen coordinate {}, {}) ".format(event.x, event.y, event.x_root, event.y_root)# 单击右键def callback_3(event):    #当前框架被选中，意思是键盘触发，只对这个框架有效    frame.focus_set()    print "right clicked at : (window coordinate {}, {}), (screen coordinate {}, {}) ".format(event.x, event.y, event.x_root, event.y_root)frame = tk.Frame(root, width=500, height=500, bg='blue')frame.bind("<Key>", key)frame.bind("<Button-1>", callback_1)frame.bind("<Button-2>", callback_2)frame.bind("<Button-3>", callback_3)frame.bind('<Control-q>', lambda event: frame.quit())frame.pack()root.mainloop()

打印结果

left clicked at : (window coordinate 123, 239), (screen coordinate 833, 557) middle clicked at : (window coordinate 161, 221), (screen coordinate 871, 539) right clicked at : (window coordinate 206, 228), (screen coordinate 916, 546) pressed 'r'pressed 'g'pressed ''Process finished with exit code 0

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