Two naive Tkinter questions

[Eric Brunel]

Pierre Quentel wrote:
> --- In python-list at yahoogroups.com, Eric Brunel <eric.brunel at p...> 
> wrote:
> 
>>Pierre Quentel wrote:
>>
>>>When you define self.b1, instead of 
>>
> using "command=self.setcolor"  
> 
>>>you can bind the event "click with left button" to a callback 
>>
> method 
> 
>>>by:
>>>self.b1=Button(self, bg="red")
>>>self.b1.bind("<Button-1>",self.setcolor)
>>
>>You shouldn't do that: the usual way buttons work is to run the 
> 
> associated 
> 
>>command when the mouse button is pressed in it, then released in it 
> 
> too. Having 
> 
>>the command run when the button is just clicked may seem awkward to 
> 
> many users. 
> 
>>And emulating the way button usually work with bindings would be 
> 
> quite 
> 
>>difficult, if not impossible.
>>
> 
> 
> There's no need to emulate, with the code above (using "bind") the 
> behaviour is the one you describe : the color changes only when the 
> button is released (with Python 2.3 on Windows 98 and with Cygwin)

Using Python 2.1 with tcl/tk 8.3.2, or Python 2.3 with tcl/tk 8.4.4 on Linux 
(Mandrake 8.0), it isn't: press the mouse button in the button, hold it, and 
move the mouse pointer out of the button: you'll see the button color has changed...
-- 
- Eric Brunel <eric dot brunel at pragmadev dot com> -
PragmaDev : Real Time Software Development Tools - http://www.pragmadev.com