do_action( 'start_previewing_theme', WP_Customize_Manager $this )

Fires once the Customizer theme preview has started.

Parameters

$this

WP_Customize_Manager instance.

Source

File: wp-includes/class-wp-customize-manager.php

View on GitHub

Related

Used By

Used By
Used By Description
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::start_previewing_theme()

If the theme to be previewed isn’t the active theme, add filter callbacks to swap it out at runtime.

Changelog

Changelog
Version Description
WP-3.4.0 Introduced.