[Tutor] tkinter events: <B1-Motion>

[Zsiros Levente]

/#!/usr/bin/python/

/# In this program I wanted to write the event <B1-Motion> on my own, combining <Button-1>, <Motion> and <ButtonRelease-1>,
# but unfortunetly it doesn't work. No syntax errors.

/ from Tkinter import *


*def* handler(event):
	*if* buttonpressed == 1 :
		/#if the mousebutton is pressed and moved, circles should appear, but they do not/
		can.create_oval(event.x-r, event.y-r, event.x+r, event.y+r, fill="orange")
	lab.config(text='buttonpressed=' + str(buttonpressed) )

*def* press(event):
	buttonpressed=1
	lab2.config(text=buttonpressed)
	
*def* release(event):
	buttonpressed=0
	lab2.config(text=buttonpressed)	


r=5
/#global buttonpressed/
buttonpressed=0

root = Tk()
root.geometry('600x500+200+200')

/# both labels are used to check the status of the variable buttonpressed/
lab = Label(root, text='cucc')
lab2 = Label(root, text='cucc2')

can = Canvas(root, width='500', height='400', bg='white')
can.bind("<Motion>",handler)
can.bind("<Button-1>",press)
can.bind("<ButtonRelease-1>",release)

lab.pack()
lab2.pack()
can.pack()

root.mainloop()

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