BuddyPress.org

something like: (what i use for sitemap generator for a daily function call)

`
//on plugin activation register cron
function myplugin_activation() {
wp_schedule_event( time(), ‘daily’, ‘myplugin_wp_cron_call’ );
}
register_activation_hook(__FILE__, ‘myplugin_activation’);

//on plugin deactivation remove cron
function myplugin_deactivation() {
wp_clear_scheduled_hook( ‘myplugin_wp_cron_call’ );
}
register_deactivation_hook(__FILE__, ‘myplugin_deactivation’);

//hook the action to call from wp_cron
add_action( ‘myplugin_wp_cron_call’, ‘myplugin_some_function_to_hook_for_wp_cron’ );
`