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form_field_userptr(3)           Library calls          form_field_userptr(3)


NAME

       set_field_userptr, 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 a pointer (which may be NULL).  It
       does not set errno.

       The function set_field_userptr returns E_OK (success).


PORTABILITY

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

       The user pointer is a void pointer.  We chose not to leave it as a char
       pointer for SVr4 compatibility.


AUTHORS

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


SEE ALSO

       curses(3X), form(3X)

ncurses 6.5                       2024-03-16            form_field_userptr(3)

ncurses 6.5 - Generated Mon May 6 07:41:48 CDT 2024
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