WordPress at a glance
filter is not described

wp_check_post_lock_window filter-hook . WP 3.3.0

Filters the post lock window duration.

Usage

add_filter( 'wp_check_post_lock_window', 'filter_function_name_5201' );
function filter_function_name_5201( $interval ){
	// filter...

	return $interval;
}
$interval(int)
The interval in seconds the post lock duration should last, plus 5 seconds.
Default: 150

Where the hook is called

wp_ajax_wp_remove_post_lock()
wp_check_post_lock()
wp-admin/includes/ajax-actions.php 2379
$new_lock = ( time() - apply_filters( 'wp_check_post_lock_window', 150 ) + 5 ) . ':' . $active_lock[1];
wp-admin/includes/post.php 1499
$time_window = apply_filters( 'wp_check_post_lock_window', 150 );

Where the hook is used (in WP core)

Does not used.