set_form_win man page on FreeBSD

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form_win(3X)							  form_win(3X)

NAME
       form_win - make and break form window and subwindow associations

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

       The first four functions get and set those windows.  It is  not	neces‐
       sary  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  sub‐
       window of form.

RETURN VALUE
       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).

       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
       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 sup‐
       ported on Version 7 or BSD versions.

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

								  form_win(3X)
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