xref: /freebsd/contrib/ncurses/form/frm_sub.c (revision 7a7741af18d6c8a804cc643cb7ecda9d730c6aa6)
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2  * Copyright 2020,2021 Thomas E. Dickey                                     *
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29 
30 /****************************************************************************
31  *   Author:  Juergen Pfeifer, 1995-1997,2009                               *
32  ****************************************************************************/
33 
34 #include "form.priv.h"
35 
36 MODULE_ID("$Id: frm_sub.c,v 1.15 2021/06/17 21:20:30 tom Exp $")
37 
38 /*---------------------------------------------------------------------------
39 |   Facility      :  libnform
40 |   Function      :  int set_form_sub(FORM *form, WINDOW *win)
41 |
42 |   Description   :  Set the subwindow of the form to win.
43 |
44 |   Return Values :  E_OK       - success
45 |                    E_POSTED   - form is posted
46 +--------------------------------------------------------------------------*/
47 FORM_EXPORT(int)
48 set_form_sub(FORM *form, WINDOW *win)
49 {
50   T((T_CALLED("set_form_sub(%p,%p)"), (void *)form, (void *)win));
51 
52   if (form && (form->status & _POSTED))
53     RETURN(E_POSTED);
54   else
55     {
56 #if NCURSES_SP_FUNCS
57       FORM *f = Normalize_Form(form);
58 
59       f->sub = win ? win : StdScreen(Get_Form_Screen(f));
60       RETURN(E_OK);
61 #else
62       Normalize_Form(form)->sub = win;
63       RETURN(E_OK);
64 #endif
65     }
66 }
67 
68 /*---------------------------------------------------------------------------
69 |   Facility      :  libnform
70 |   Function      :  WINDOW *form_sub(const FORM *)
71 |
72 |   Description   :  Retrieve the window of the form.
73 |
74 |   Return Values :  The pointer to the Subwindow.
75 +--------------------------------------------------------------------------*/
76 FORM_EXPORT(WINDOW *)
77 form_sub(const FORM *form)
78 {
79   const FORM *f;
80 
81   T((T_CALLED("form_sub(%p)"), (const void *)form));
82 
83   f = Normalize_Form(form);
84   returnWin(Get_Form_Window(f));
85 }
86 
87 /* frm_sub.c ends here */
88