configInputfields template context API usage

[interrobang]

I am playing around with the new addition getConfigAllowContext()
http://processwire.com/blog/posts/processwire-2.5.7-core-updates/#field-template-context-now-available-for-any-field-property
 
In my InputfieldTest.module I have this method:

    public function ___getConfigAllowContext($field)
    {
        $contextFields = parent::___getConfigAllowContext($field);
        $contextFields[] = 'cropSettings';
        return $contextFields;
    }

In the admin everything works like expected. But I have no idea how to use this with the API.

In my "FieldtypeTest.module" I want to get the cropSettings in the  context of a specific template. Until now I am using $inputFieldInstance->cropSettings to get my settings, but of course this gets me only the value without the context. 

Any ideas?

[adrian]

I haven't tested, but from memory, I think this is what you need:

$t = $templates->get('basic-page');
$f = $t->fieldgroup->getField('fieldname', true);
echo $f->cropSettings;

[interrobang]

Thanks Adrian, thats what I tried before. At least I thought so. Tried it again, and now it works.