and UI_dup_error_string() are basically the same as their UI_add counterparts, except that they make their own copies of all strings.</p>

<p>UI_construct_prompt() is a helper function that can be used to create a prompt from two pieces of information: a phrase description <i>phrase_desc</i> and an object name <i>object_name</i>, where the latter may be NULL. The default constructor (if there is none provided by the method used) creates a string &quot;Enter <i>phrase_desc</i> for <i>object_name</i>:&quot; w