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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
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460 | } |
461 |
|
462 | /** |
463 | * Fires once the Customizer theme preview has started. |
464 | * |
465 | * @since 3.4.0 |
466 | * |
467 | * @param WP_Customize_Manager $this WP_Customize_Manager instance. |
468 | */ |
469 | do_action( 'start_previewing_theme', $this ); |
470 | } |
471 |
|
472 | /** |
473 | * Stop previewing the selected theme. |
474 | * |
475 | * Removes filters to change the current theme. |
476 | * |
477 | * @since 3.4.0 |
478 | */ |