Tkinter - Button Overrelief

[Eric Brunel]

On Tue, 27 Jun 2006 14:06:05 +0200, Fuzzyman <fuzzyman at gmail.com> wrote:

> 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()
--------------------------------

HTH
-- 
python -c "print ''.join([chr(154 - ord(c)) for c in  
'U(17zX(%,5.zmz5(17l8(%,5.Z*(93-965$l7+-'])"