[Glade-users] C Beginner question

[thelupine at gmail.com (Lupine)]

On Mon, 2007-12-24 at 10:33 -0800, Micah Carrick wrote:
> Did you specify "ssh_user_entry" as the user_data for the "clicked" 
> event of the button in the glade file? Otherwise, you might want to use 
> glade_xml_signal_connect instead of autoconnect so you can specify the 
> user data. Sometimes if you have custom user data, you use 
> glade_xml_signal_connect_data for your connections instead.
>
> void on_connect_btn_clicked(GtkButton *button, GtkWidget
> *ssh_user_entry)
> {
>     const gchar *ssh_user_text;
>      ssh_user_text = gtk_entry_get_text (GTK_ENTRY (ssh_user_entry));
>     printf ("Entry contents: %s\n", ssh_user_text);
> }
>
> int main (int argc, char *argv[])
> {
>     GladeXML *xml;    /* glade xml file */
>     GtkWidget *entry;
>    
>     gtk_init (&argc, &argv);
>     xml = glade_xml_new (GLADE_FILE, NULL, NULL);   
>    
>     /* get a reference to the entry widget */
>     entry = glade_xml_get_widget (xml, "ssh_user_entry");
>    
>     /*
>     assumes "on_connect_btn_clicked" is the handler name specified in glade
>     and passes the entry widget as user data.
>     */
>    
>     glade_xml_signal_connect_data (xml,
>                                    "on_connect_btn_clicked",
>                                    G_CALLBACK (on_connect_btn_clicked),
>                                    entry);
>                                   
>     /*
>     unlike PHP, you're responsible for freeing memory with C
>     Below we are unreferencing the xml object in memory now that we've built
>     the UI and obtained references to the widgets we need.
>     */
>    
>     g_object_unref (xml);
>    
>     gtk_main();
>
>     return 0;
> }



Ahhh, thanks for the thorough explanation, and sample code.  It makes a
little more sense now.  I'm just a little confused on the format of the
glade_xml_signal_connect_data function.  I'm now wondering how the best
way to pass multiple GtkEntry inputs to that function, or do I go and
grab that information from within the void on_connect_btn_clicked()
function.

Is there any site that I can reference for future, similar, basic
questions?

Thanks again for the same-day response!
-Lup