Libglade and passing user_data

[Laterix]

I have created a .glade file with glade-3, but I'm confused how to pass user_data. Ok let's see some code first:



int
main (int argc, char *argv[])
{
GladeXML *xml;
xml = glade_xml_new (PACKAGE_SOURCE_DIR "/Livingroom.glade", NULL, NULL);
glade_xml_signal_autoconnect (xml);

So, I want to use autoconnect and determine user_data with glade-editor. I want to pass this xml-pointer so that I can get widget pointers in callback functions.

In glade file it looks like this


<signal name="activate" handler="show_preferences_window" object="xml"/>


And callbacks are like this


void
show_preferences_window (GtkWidget * widget, gpointer user_data)
{
GladeXML *xml = GLADE_XML(user_data);
GtkWidget *pref_window = glade_xml_get_widget (xml, "preferences_window");
gtk_widget_show (pref_window);
}


And runtime error on callbacks first line is


GLib-GObject-WARNING **: invalid cast from `GtkToolButton' to `GladeXML'


So it seems that it gives an event source object as a user_data instead of GlideXML which I wanted. Is this a bug in libglade or am I missing something here?

[Laterix]

Anyone...? Pretty please :)

[PointSource]

I had/have a similar problem, but mine was/is to do with passing data through the glade GUI.