1form_userptr(3X)                                              form_userptr(3X)
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NAME

6       set_form_userptr, form_userptr - associate application data with a form
7       item
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SYNOPSIS

10       #include <form.h>
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12       int set_form_userptr(FORM *form, void *userptr);
13       void* form_userptr(const FORM *form);
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DESCRIPTION

16       Every form and every form item has a field that can be used to hold ap‐
17       plication-specific  data  (that  is,  the  form-driver  code  leaves it
18       alone).  These functions get and set the form user pointer field.
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RETURN VALUE

21       The function form_userptr returns a pointer (which may  be  NULL).   It
22       does not set errno.
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24       The function set_form_userptr returns E_OK (success).
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SEE ALSO

27       curses(3X), form(3X).
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NOTES

30       The  header  file  <form.h>  automatically  includes  the  header  file
31       <curses.h>.
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PORTABILITY

34       These routines emulate the System V forms library.  They were not  sup‐
35       ported on Version 7 or BSD versions.
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37       The user pointer is a void pointer.  We chose not to leave it as a char
38       pointer for SVr4 compatibility.
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AUTHORS

41       Juergen Pfeifer.  Manual pages and adaptation for new curses by Eric S.
42       Raymond.
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46                                                              form_userptr(3X)