Hi! The best and simplest way to get rid of global varriables would be to define a structure that would contain all the data you need and then you can keep passing it's pointer around in the callbacks using the 'user_data' argument. If you want to use g_object_set/get_data() instead, thats also possible and very easy (you don't even have to define a new structure, since you can assign different string keys for different kinds of data). IMHO, the g_object_set/get_data() API reference (1) is good enough and there doesn't need to be an example code for all possible scenerios in the tutorials/docs.
1. http://developer.gnome.org/doc/API/2.0/gobject/gobject-The-Base-Object-Type.html#g-object-set-data On 11/26/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > This is my global variable version: > > #include <gtk/gtk.h> > > #include "callbacks.h" > #include "interface.h" > #include "support.h" > > GtkWidget *window2, *window1, *label1, *entry1; > > void > on_button1_clicked (GtkButton *button, > gpointer user_data) > { > window1 = lookup_widget(button,"window1"); > window2=create_window2(); > gtk_widget_show(window2); > gtk_grab_add(window2); > } > > > void > on_button2_clicked (GtkButton *button, > gpointer user_data) > { > label1 = lookup_widget(window1,"label1"); > entry1 = lookup_widget(window2,"entry1"); > gtk_label_set_text(label1,gtk_entry_get_text(entry1)); > gtk_grab_remove(window1); > gtk_widget_destroy(window2); > } > > Thanks, > Kim > ---- "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote: > > Hi, > > > > I am about to start a new app, and would like to improve my programming > > style. I have been using global variables to pass data from "popup" windows > > back to a main window. I have seen discussion about using > > g_object_set_data, but have not progressed to being able to use it > > confidently. > > > > Does anyone know of a simple example using g_object_set_data. The sort of > > thing I am thinking about is a main window with a label and button, that > > pops up a child window with an entry and a button. Clicking the child > > windows button returns the string in the entry back to the main windows > > label. > > > > This sort of example would be very useful in the tutorial. > > > > Thanks, > > Kim > > _______________________________________________ > > gtk-app-devel-list mailing list > > gtk-app-devel-list@gnome.org > > http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list > > _______________________________________________ > gtk-app-devel-list mailing list > gtk-app-devel-list@gnome.org > http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list > -- Regards, Zeeshan Ali, Software Design Engineer, Open Source Software Operations, Nokia, Helsinki, Finland. _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
