WordPress at a glance
filter is not described

page_attributes_dropdown_pages_args filter-hook . WP 3.3.0

Filters the arguments used to generate a Pages drop-down element.

Usage

add_filter( 'page_attributes_dropdown_pages_args', 'filter_function_name_6895', 10, 2 );
function filter_function_name_6895( $dropdown_args, $post ){
	// filter...

	return $dropdown_args;
}
$dropdown_args(array)
Array of arguments used to generate the pages drop-down.
$post(WP_Post)
The current post.

Where the hook is called

page_attributes_meta_box()
wp-admin/includes/meta-boxes.php 857
$dropdown_args = apply_filters( 'page_attributes_dropdown_pages_args', $dropdown_args, $post );

Where the hook is used (in WP core)

Does not used.