In my own module i can override successful `template_preprocess_region()` with

```
 function mymodule_preprocess_region(&$vars) {
   ...
 }

```

Described at [hook\_preprocess\_HOOK](http://api.drupal.org/api/drupal/modules!system!theme.api.php/function/hook_preprocess_HOOK/7)

Is there a possibility to call a hook\_preprocess\_HOOK depending on an URl specified in hook\_menu()?