- The function <STRONG>form_userptr</STRONG> returns <STRONG>NULL</STRONG> on error. The
- function <STRONG>set_form_userptr</STRONG> returns one of the following:
-
- <STRONG>E_OK</STRONG> The routine succeeded.
+ The function <STRONG>form_userptr</STRONG> returns a pointer (which may be
+ <STRONG>NULL</STRONG>). It does not set errno.