WordPress at a glance
filter is not described

register_post_type_args filter-hook . WP 4.4.0

Filters the arguments for registering a post type.

Usage

add_filter( 'register_post_type_args', 'filter_function_name_966', 10, 2 );
function filter_function_name_966( $args, $post_type ){
	// filter...

	return $args;
}
$args(array)
Array of arguments for registering a post type.
$post_type(string)
Post type key.

Where the hook is called

WP_Post_Type::set_props()
register_post_type_args
wp-includes/class-wp-post-type.php 376
$args = apply_filters( 'register_post_type_args', $args, $this->name );

Where the hook is used (in WP core)

Does not used.