Re: When is g_object_ref needed ?

[Frédéric Terraza <fterraza free fr>]

Thanks. But there are still some mysteries. For example, this sequence :

my_pixmap = gdk_pixmap_new(...) ;
my_gc = gdk_gc_new(my_pixmap) ;
g_object_unref(my_pixmap) ;
g_object_unref(my_gc) ;

seems to lead to an error. I was told that g_object_unref(my_pixmap) ; 
would unref my_gc too. And effectively, if I delete the 
g_object_unref(my_gc) ; everything works fine.

Are there some others examples of dependancies in GDK/GTK ? (colormaps, 
for example ?)


Tristan Van Berkom a écrit :

> Frédéric Terraza wrote:
>
> > Hello,
> >
> > I must use g_object_unref  to free a gdk or a gtk object. There are 
> > lots of deprecated functions that are now replaced by g_object_unref 
> > (such as g_pixmap_unref,  gdk_gc_unref).
> >
> > But must I use g_object_ref after the creation of a pixmap or a gc, 
> > since there used to be g_pixmap_ref and g_gc_ref functions ?
>
>
> Yes,
>   they GdkPixmap & GdkGC are GObjects so they need to be unreffed.
> (and the correct way to do this is to use g_object_unref).
>
> Cheers,
>                       -Tristan
>
>
> http://developer.gnome.org/doc/API/2.0/gdk/gdk-Bitmaps-and-Pixmaps.html#gdk-pixmap-unref 
>
>
>
>
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