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form_win(3X)

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NAME    [Toc]    [Back]

       form_win - make and break form window and subwindow associations

SYNOPSIS    [Toc]    [Back]

       #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    [Toc]    [Back]

       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    [Toc]    [Back]

       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    [Toc]    [Back]
	    System error occurred (see errno).

       E_BAD_ARGUMENT    [Toc]    [Back]
	    Routine detected an incorrect or out-of-range argument.

       E_POSTED    [Toc]    [Back]
	    The form has already been posted.

       E_NOT_CONNECTED    [Toc]    [Back]
	    No items are connected to the form.

SEE ALSO    [Toc]    [Back]

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

NOTES    [Toc]    [Back]

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

PORTABILITY    [Toc]    [Back]

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

AUTHORS    [Toc]    [Back]

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



								  form_win(3X)
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