Re: http://www.gtk.org/tutorial/sec-anupgradedhelloworld.html



On Thu, 17 Feb 2005 13:05:43 +0100
Gert Cuykens <gert cuykens gmail com> wrote:

static void callback( GtkWidget *widget, gpointer   data ){
    g_print ("Hello again - %s was pressed\n", (gchar *) data);
}

why do they put () around gchar ?
why can it not be gchar *data ?

What does %s do ?
Are gpointer and gchar global variables of gtk ?
Are gpointer and gchar data types or objects ?
What does gpointer and gchar represent ?
You should learn some more about programming in C before you start
writing GTK apps.

hs



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