Set a maxlength for the title input in a custom post type

Question

I'm creating a new custom post type. But I need to limit the max length for the title. This is how I'm creating the field in my code:

array(
    'key' => 'title',
    'label' => 'Title',
    'name' => 'title',
    'type' => 'text',
    'required' => 1,
    'maxlength' => 65,
)

But the maxlength property isn't working. Is there a way to set this limit from code (not using a plugin) and only for this post type?

Answer 1

array(
    'key' => 'custom_post_title',
    'label' => 'Title',
    'name' => 'title',
    'type' => 'text',
    'required_over' => 1,
    'maxlength_set' => 65,
)