activate_header │ action-hook │ WP 3.0.0

Fires before the Site Activation page is loaded.

Usage

add_action( 'activate_header', 'wp_kama_activate_header_action' );

/**
 * Function for `activate_header` action-hook.
 * 
 * @return void
 */
function wp_kama_activate_header_action(){

	// action...
}

Changelog

Where the hook is called

do_action( 'activate_header' );

Where the hook is used in WordPress

add_action( 'activate_header', '_wp_admin_bar_init' );