set_field_userptr(3x)

1form_field_userptr(3X)                                  form_field_userptr(3X)
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NAME

6       set_field_userptr,  field_userptr  -  associate application data with a
7       form field
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SYNOPSIS

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

15       Every form field has a field that can be used to hold  application-spe‐
16       cific  data  (that  is,  the  form-driver code leaves it alone).  These
17       functions get and set that field.
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RETURN VALUE

20       The function field_userptr returns a pointer (which may be  NULL).   It
21       does not set errno.
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23       The function set_field_userptr returns E_OK (success).
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NOTES

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

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

40       Juergen Pfeifer.  Manual pages and adaptation for new curses by Eric S.
41       Raymond.
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45                                                        form_field_userptr(3X)