form_win(3x) — Linux manual page

form_win(3X)                                                form_win(3X)

NAME         top

       form_win - make and break form window and subwindow associations

SYNOPSIS         top

       #include <form.h>

       int set_form_win(FORM *form, WINDOW *win);
       WINDOW *form_win(const FORM *form);

       int set_form_sub(FORM *form, WINDOW *sub);
       WINDOW *form_sub(const FORM *form);

       int scale_form(const FORM *form, int *rows, int *columns);

DESCRIPTION         top

       Every form has an associated pair of curses windows.  The form
       window displays any title and border associated with the window;
       the form subwindow displays the items of the form that are
       currently available for selection.

       The first four functions get and set those windows.  It is not
       necessary to set either window; by default, the driver code uses
       stdscr for both.

       In the set_ functions, window argument of NULL is treated as
       though it were stsdcr.  A form argument of NULL is treated as a
       request to change the system default form window or subwindow.

       The function scale_form returns the minimum size required for the
       subwindow of form.

RETURN VALUE         top

       Routines that return pointers return NULL on error.  Routines
       that return an integer return one of the following error codes:

       E_OK The routine succeeded.

       E_SYSTEM_ERROR
            System error occurred (see errno(3)).

       E_BAD_ARGUMENT
            Routine detected an incorrect or out-of-range argument.

       E_POSTED
            The form has already been posted.

       E_NOT_CONNECTED
            No items are connected to the form.

SEE ALSO         top

       curses(3X), curs_variables(3X), form(3X).

NOTES         top

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

PORTABILITY         top

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

AUTHORS         top

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

COLOPHON         top

       This page is part of the ncurses (new curses) project.
       Information about the project can be found at 
       ⟨https://www.gnu.org/software/ncurses/ncurses.html⟩.  If you have
       a bug report for this manual page, send it to
       [email protected].  This page was obtained from the
       project's upstream Git mirror of the CVS repository
       ⟨https://github.com/mirror/ncurses.git⟩ on 2024-06-14.  (At that
       time, the date of the most recent commit that was found in the
       repository was 2023-03-12.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
       is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to
       [email protected]

                                                            form_win(3X)

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