[pygtk] problem with gnome_icon_list_get_icon_data

[Sam Byrne]

I knew there had to be something that I was doing wrong in making the
call.  Interestingly enough, I was receiving a NULL pointer in the
return, so that makes perfect sense.  I apologize if I ask questions
that are blatantly wrong, but I am brand new to Python as well as to
GTK/GNOME.

Thanks much for your help.
Sam
On Mon, 2002-02-04 at 19:28, James Henstridge wrote:
> Sam Byrne wrote:
> 
> >I noticed in an archive that someone posted a question regarding a
> >problem that I seem to be stumped with.  Please help out if you know of
> >the solution.
> >
> >(This is snipped from the archive)
> >snip----
> >I've some problems with GnomeIconList: whenever I try to access
> >get_icon_data() method python just recives segfault and the whole app
> >crashes. It's enough to do something like:
> >
> >from gnome.ui import *
> >
> >l = GnomeIconList()
> >l.append('some-icon.png', 'some text')
> >l.get_icon_data(0)
> >
> >It also 'works' in full-blown apps (i.e. with main app window, mainloop
> >running etc.).
> >snip--
> >
> >I'm messing with the code on version 1.4.1 of pygnome on redhat 7.2.
> >Tracking the issue back to its source leads me to believe that this bit
> >of code might very well be the problem:
> >
> >static PyObject *_wrap_gnome_icon_list_get_icon_data(PyObject *self,
> >PyObject *args) {
> >  PyObject *ilist, *data;
> >  int pos;
> >
> >  if (!PyArg_ParseTuple(args, "O!i:gnome_icon_list_get_icon_data",
> >                        &PyGtk_Type, &ilist, &pos))
> >    return NULL;
> >  data =
> >gnome_icon_list_get_icon_data(GNOME_ICON_LIST(PyGtk_Get(ilist)), pos);
> >  Py_INCREF(data);
> >  return data;
> >}
> >
> >The call to gnome_icon_list_get_icon_data seems to return something
> >incorrect.  According to the source, it should return a void pointer
> >(gpointer), but the next call(Py_INCREF) seems to cause a seg fault. 
> >Any ideas???
> >
> If you didn't set the data associated with the icon, then the results 
> can be unpredictable (ie. get_icon_data() will return whatever you set 
> with set_icon_data()).  I suppose putting in a NULL check there would be 
> helpful, but you will run into the same sort of problem if the icon data 
> is set to something other than a PyObject.
> 
> James.
> 
> -- 
> Email: james@daa.com.au
> WWW:   http://www.daa.com.au/~james/
> 
> 
> 
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