magnify ()
{
int pid;
extern int errno;
menu_set ( menu_find ( main_menu, MENU_STRING, "magnify", 0 ),
MENU_INACTIVE, TRUE, 0 );
pid = vfork ();
if ( pid == -1 ) /* fork failed */
{
printf ( "fork failed errno is %d\n", errno );
}
else if ( pid ) /* parent */
{
notify_set_wait3_func ( canvas, mag_handler, pid );
}
else /* child */
{
execlp ( "/bin/X11/xmag",
"xmag", "-display", getenv("DISPLAY"), (char *) 0);
printf ( "exec failed\n" );
}
}
static void
menu_del_cb (GtkWidget *menu, menu_entry *me, char *target)
{
GtkWidget *item = menu_find (menu, me->path + me->root_offset, me->label);
if (item)
gtk_widget_destroy (item);
}
Notify_value
mag_handler ()
{
menu_set ( menu_find ( main_menu, MENU_STRING, "magnify", 0 ),
MENU_INACTIVE, FALSE, 0 );
return NOTIFY_DONE;
}
static void
menu_update_cb(GtkWidget *menu, menu_entry * me, char *target)
{
GtkWidget *item;
item = menu_find(menu, me->path, me->label);
if (item) {
gtk_widget_set_sensitive(item, me->enable);
/* must do it without triggering the callback */
if (GTK_IS_CHECK_MENU_ITEM(item))
GTK_CHECK_MENU_ITEM(item)->active = me->state;
}
}
