I just do a timer event as following:
to initial a time beat and handler
==================================
#include <signal.h>
#include <uinstd.h>
#include <sys/time.h>
#include <gnome.h>
enum {
BEAT,
LAST_SIGNAL
};
struct itimerval itv, oitv;
guint time_signals[LAST_SIGNAL];
void beat_close()
{
setitimer( ITIMER_REAL, &oitv, &itv );
}
void beat_handler( int sig )
{
/**************************
* emit signal to objects *
**************************/
gtk_signal_emit( /* gtk object */, time_signals[BEAT] );
...
}
int beat_init()
{
static struct sigatcion act;
/******************
* clear old beat *
******************/
itv.it_interval.tv_sec = 0;
itv.it_interval.tv_usec = 0;
it.it_value.tv_sec = 0;
it.it_value.tv_usec = 0;
setitimer( ITIMER_REAL, &itv, &oitv );
/****************************
* create new signal "beat" *
****************************/
time_signals[BEAT] = gtk_signal_new( "beat",
GTK_RUN_LAST | GTK_RUN_ACTION,
GTK_TYPE_OBJECT,
0,
gtk_marshall_NONE__NONE,
GTK_TYPE_NONE, 0 );
/************************
* set action for alarm *
************************/
act.sa_handler = beat_handler;
sigemptyset( &act.sa_mask );
sigaddset( &act.sa_mask, SIGALRM );
return( sigaction( SIGALRM, &act, NULL ) );
}
to connect to signal "beat"
===========================
...
gtk_object_class_add_signals( GTK_OBJECT(widget)->klass,
time_signals, LAST_SIGNAL );
gtk_signal_connect( GTK_OBJECT(widget), "beat"
GTK_SIGNAL_FUNC(on_what_object_handler_when_beat),
NULL );
...
HTH
On Thu, May 18, 2000 at 06:41:35PM -0700, Dominique Nerriere wrote:
> Hi all,
>
> I didn't find a way to generate an event with a timer, does gtk/gtk/glib provide
>such a thing?
>
> I need a function to be called every 1/33 seconde
>
> Thanks for your help :)
>
> Dominique
>
>
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