Re: gtk-entry pointer problem

[Iago Rubio <iago rubio hispalinux es>]

On Wed, 2005-03-09 at 11:19 +0100, simon honold epfl ch wrote:
> Hello,
> I have a problem with my gtk entry widget. In my application I want to get the
> path of a picture, entered by the user in this entry widget.
>
> I have the following structure which is passed as argument
[snipped]
> gboolean text_path_drawback(GtkWidget*widget,GdkEvent *event,struct picture_s
> *picture){
>
>       const char *pathentered= gtk_entry_get_text (GTK_ENTRY (widget));
>       picture->path=pathentered;
>         printf("%sn",picture->path);
>
>       return TRUE;
>
> }
>
> so this printf is done very well, but if I click now on my Load button widget
> and i use absolutely the same printf,( printf("%sn",picture->path); )
> so my element "path" seems to be a null pointer.

const char *pathentered is out of bounds when it runs out the function.

Try to chage:
        gtk_entry_get_text(GTK_ENTRY (widget)) 
.. with ...
        gtk_editable_get_chars(GTK_EDITABLE(widget), 0, -1)

It returns an allocated buffer - you should remember to free it - and
will not get out of bounds when this function ends.

[snip]

> I now, that it has to be a really stupid beginner mistake, but i can't find it,
> so please help me a little bit!!

I hope I did :)
-- 
Iago Rubio