@johnmcalester– I’ll try to write up a tutorial on this, but for now you can check out the code in the Piklist Demo Add-on.  All the meta boxes in the demo currently have this feature turned on.  To see it in action, change the Post Status of a Demo post to LOCK.

Check out any file in this directory to see how this is done: add-ons/piklist-demos/parts/meta-boxes/

The Parameter is on_post_status

,'on_post_status' => array(
'value' => 'lock'
)


@johnmcalester– Glad we could help.  Wrote the tutorial here.

Also HTML has the readonly attribute, just not as flexible as on_post_status.  But this would work:


,'attributes' => array(
'class' => 'small-text'
,'readonly' => 'readonly'
)