WordPress at a glance
filter is not described

wpsc_preload_post_types filter-hook . WPSCache 1.0

Usage

add_filter( 'wpsc_preload_post_types', 'filter_function_name_2593' );
function filter_function_name_2593( $post_types ){
	// filter...

	return $post_types;
}
$post_types
-

Where the hook is called

wpsc_get_post_types()
wpsc_preload_post_types
wp-super-cache/wp-cache.php 3933
$post_types = (array) apply_filters( 'wpsc_preload_post_types', get_post_types( $preload_type_args, 'names', 'or' ));

Where in WP core the hook is used WP Super Cache

Usage not found.