# form_post 3x

## NAME

           form_post  -  write or erase forms from associated subwin-
           dows

## SYNOPSIS

           #include <form.h>
           int post_form(FORM *form);
           int unpost_form(FORM *form);

## DESCRIPTION

           The function post_form displays a form to  its  associated
           subwindow.   To trigger physical display of the subwindow,
           use  refresh  or  some  equivalent  curses  routine   (the
           implicit  doupdate  triggered  by  an curses input request
           will do).

           The function unpost_form erases form from  its  associated
           subwindow.

## RETURN VALUE

           These routines return one of the following:

           E_OK The routine succeeded.

           E_SYSTEM_ERROR
                System error occurred (see errno).

           E_BAD_ARGUMENT
                Routine  detected  an incorrect or out-of-range argu-
                ment.

           E_POSTED
                The form has already been posted.

           E_BAD_STATE
                Routine was called from an initialization or termina-
                tion function.

           E_NO_ROOM
                Form is too large for its window.

           E_NOT_POSTED
                The form has not been posted.

           E_NOT_CONNECTED
                No items are connected to the form.

## 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.

## AUTHORS

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