Tkinter - Button Overrelief

[Fuzzyman]

Hello all,

I have some Tkinter buttons that display images. I would like to change
these to 'active' images when the mouse is over the button.

I see that the button widget can take an 'overrelief' argument in the
constructor. What values can this take ?

Also - can anyone provide an example of using the equivalent of a
'mouseover' event to change the image used by a button in Tkinter ? I'm
afraid google has not helped me much here.

Much Appreciated,


Fuzzyman
http://www.voidspace.org.uk/python/index.shtml

 

[Eric Brunel]

Hello all,

I have some Tkinter buttons that display images. I would like to change
these to 'active' images when the mouse is over the button.

I see that the button widget can take an 'overrelief' argument in the
constructor. What values can this take ?

The same as the 'relief' option, i.e the ones described here:
http://www.tcl.tk/man/tcl8.4/TkCmd/options.htm#M-relief

Note that Tkinter contains symbolic constants for these values: 'raised'
is Tkinter.RAISED, 'flat' is Tkinter.FLAT, and so on.

Also - can anyone provide an example of using the equivalent of a
'mouseover' event to change the image used by a button in Tkinter ? I'm
afraid google has not helped me much here.

The events you're after are '<Enter>' and '<Leave>'; see here:
http://www.tcl.tk/man/tcl8.3/TkCmd/bind.htm#M7

Here is an example showing how to change the button text (changing the
image is similar):

--------------------------------
from Tkinter import *

root = Tk()

b = Button(root, width=8, text='foo')
b.pack()

def enterB(event):
b.configure(text='bar')

def leaveB(event):
b.configure(text='foo')

b.bind('<Enter>', enterB)
b.bind('<Leave>', leaveB)

root.mainloop()

 

[Fuzzyman]

The same as the 'relief' option, i.e the ones described here:
http://www.tcl.tk/man/tcl8.4/TkCmd/options.htm#M-relief

Note that Tkinter contains symbolic constants for these values: 'raised'
is Tkinter.RAISED, 'flat' is Tkinter.FLAT, and so on.

Cool, I'll have to look into this and see how they look. Thanks.

The events you're after are '<Enter>' and '<Leave>'; see here:
http://www.tcl.tk/man/tcl8.3/TkCmd/bind.htm#M7

Here is an example showing how to change the button text (changing the
image is similar):

--------------------------------
from Tkinter import *

root = Tk()

b = Button(root, width=8, text='foo')
b.pack()

def enterB(event):
b.configure(text='bar')

def leaveB(event):
b.configure(text='foo')

b.bind('<Enter>', enterB)
b.bind('<Leave>', leaveB)

root.mainloop()

That works like a charm, great.

Much Appreciated

Fuzzyman
http://www.voidspace.org.uk/python/index.shtml