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OpenDarwin 7.2.1 - man page for form_field_userptr (opendarwin section 3X)

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form_field_userptr(3X)							   form_field_userptr(3X)

NAME
       form_field_userptr - associate application data with a form field

SYNOPSIS
       #include <form.h>
       int set_field_userptr(FIELD *field, void*userptr);
       void *field_userptr(const FIELD *field);

DESCRIPTION
       Every  form field has a field that can be used to hold application-specific data (that is,
       the form-driver code leaves it alone).  These functions get and set that field.

RETURN VALUE
       The function field_userptr returns NULL on error. The function  set_field_userptr  returns
       one of the following:

       E_OK The routine succeeded.

       E_SYSTEM_ERROR
	    System error occurred (see errno).

SEE ALSO
       curses(3X), form(3X).

NOTES
       The header file <form.h> automatically includes the header file <curses.h>.

PORTABILITY
       These  routines	emulate the System V forms library.  They were not supported on Version 7
       or BSD versions.

       The user pointer should be a void pointer.  We leave it as a char pointer for SVr4 compat-
       ibility.

AUTHORS
       Juergen Pfeifer.  Manual pages and adaptation for new curses by Eric S. Raymond.

									   form_field_userptr(3X)
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