icon_dir filter-hook . WP 1.0

No thumb, no image. We'll look for a mime-related icon instead.

Usage

add_filter( 'icon_dir', 'filter_function_name_6975' );
function filter_function_name_6975( $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 the hook is used (in WP core)