Re: Callback Parameters are Switched

[Tomas Carnecky <tom dbservice com>]

dhk wrote:
> Tomas Carnecky wrote:
> > dhk wrote:
> > > I'm using glade for a front end which has a button that when clicked 
> > > passes a notebook as the user_data to the callback.
> > >
> > > I'm using the gdb debugger to look at the two parameters in the 
> > > callback and they are switched.  The first parameter, the button, is 
> > > the notebook object and the second parameter, the user_data, is the 
> > > button object. If I don't use user_data in Glade the parameter are 
> > > correct, the first is the button and the second is NULL.
> > >
> > > Why is this happening?
> >
> > http://library.gnome.org/devel/gobject/stable/gobject-Signals.html#g-signal-connect-swapped 
> Ok, I think that explains it, but how was I suppose to know that was 
> happening?  . . . and what is the purpose in swapping the parameters? 
> Why do that?

There are circumstances where swapping the params is useful. But I have 
no idea why glade does it automatically for you.

tom