On Feb 19, 2005, at 2:51 AM, Gert Cuykens wrote:
On Thu, 17 Feb 2005 13:17:51 +0100, Hubert Sokołowski <[EMAIL PROTECTED]> wrote:On Thu, 17 Feb 2005 13:05:43 +0100 Gert Cuykens <[EMAIL PROTECTED]> 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 ?
You should learn some more about programming in C before you start writing GTK apps.
hs
Does anybody want to explain what the () thingies are around gchar * ?
It is a typecast -- coercing "data" to be of type (gchar *) to the compiler when matching parameter types at compiler time.
Chad
_______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
