[开发工具]Python Tkinter 实现右键菜单

可以方便写个函数：

def showPopoutMenu(w, menu):
    def popout(event):
        menu.post(event.x + w.winfo_rootx(), event.y + w.winfo_rooty())
        w.update()
    w.bind('<Button-3>', popout)

应用：

1、用于整个窗口：

from tkinter import *
# Python 2.X 可以用from Tkinter import *

def showPopoutMenu(w, menu):
    def popout(event):
        menu.post(event.x + w.winfo_rootx(), event.y + w.winfo_rooty()) 
        w.update() 
    w.bind('<Button-3>', popout) 

w = Tk()
w.title('Pop-Out Menu')

menu = Menu(w)
menu.add_cascade(label = '功能一')
menu.add_cascade(label = '功能二')
showPopoutMenu(w, menu)

w.mainloop()

效果：

2、用于控件

from tkinter import *
# Python 2.X 可以用from Tkinter import *

def showPopoutMenu(w, menu):
    def popout(event):
        menu.post(event.x + w.winfo_rootx(), event.y + w.winfo_rooty()) 
        w.update() 
    w.bind('<Button-3>', popout) 

w = Tk()
w.title('Pop-Out Menu')

lab = Label(text = 'I am a Label widget with right-click menu! ')
lab.place(x = 0, y = 0)
menu = Menu(w)
menu.add_cascade(label = '功能一')
menu.add_cascade(label = '功能二')
showPopoutMenu(lab, menu)

w.mainloop()

效果：

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