icon_dir filter-hook . WP 1.0

This filter is documented in wp-includes/post.php

Usage

add_filter( 'icon_dir', 'filter_function_name_4038' );
function filter_function_name_4038( $get_template_directory()  /images ){
	// filter...

	return $get_template_directory()  /images;
}

$get_template_directory() /images

-

Where the hook is called

$icon_dir = apply_filters( 'icon_dir', get_template_directory() . '/images' );

$icon_dir = apply_filters( 'icon_dir', ABSPATH . WPINC . '/images/media' );

$icon_dir = apply_filters( 'icon_dir', ABSPATH . WPINC . '/images/media' );

Where in WP core the hook is used WordPress