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.

            System error occurred (see errno(3)).

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

            The form has already been posted.

            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

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

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