[Glade-devel] callbacks
- From: wizard slacky it (Al)
- Subject: [Glade-devel] callbacks
- Date: Sun, 29 Aug 2004 12:10:36 +0200
Hi at all,
i followed a discussion about the callbacks with glade in witch people speaks
about the possibility to change the inteface.c file, but i learned from the
glade tutorial...
http://www.kplug.org/glade_tutorial/glade2_tutorial/quick_tour2.html
...that i should not change that file, because it will be overwitten every
time glade builds the code of my application.
I need a way to exchange pointers to widget between different callbacks
function. Is there a way without declaring a global variable?
For example my actual callbacks.c is like this:
/*Initialized in main.c with the pointer to the main window*/
extern GtkWidget *Main;
[...]
void
on_connectFileMenuButton_activate (GtkMenuItem *menuitem,
gpointer user_data)
{
GtkWidget *progress=lookup_widget(Main,"progressbar");
short int i;
gdouble fraction;
GtkWidget *connecting=create_Connecting();
for(i=0;i<=100;i++)
{
fraction=((gdouble)i)/100;
gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(progress),fraction);
sleep(0.9);
}
gtk_widget_show(connecting);
}
in this case i cannot obtain a pointer to the progressbar placed into the main
window, because the menuitem is a little window that contains: "File, Edit"
and so on... (therefore an approach like:
lookup_widget(menuitem,"progressbar"), or
lookup_widget(gtk_widget_get_toplevel(menuitem),"progressbar") does not
work).
My problem will be addressed if i could pass data into
user_data variable, but i don't know how to do that without changing the
interface.c
Can someone help me?
Thanks
Alberto
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