xref: /freebsd/contrib/ncurses/form/frm_scale.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                                    *
32  ****************************************************************************/
33 
34 #include "form.priv.h"
35 
36 MODULE_ID("$Id: frm_scale.c,v 1.13 2021/06/17 21:20:30 tom Exp $")
37 
38 /*---------------------------------------------------------------------------
39 |   Facility      :  libnform
40 |   Function      :  int scale_form( const FORM *form, int *rows, int *cols )
41 |
42 |   Description   :  Retrieve size of form
43 |
44 |   Return Values :  E_OK              - no error
45 |                    E_BAD_ARGUMENT    - invalid form pointer
46 |                    E_NOT_CONNECTED   - no fields connected to form
47 +--------------------------------------------------------------------------*/
48 FORM_EXPORT(int)
49 scale_form(const FORM *form, int *rows, int *cols)
50 {
51   T((T_CALLED("scale_form(%p,%p,%p)"),
52      (const void *)form,
53      (void *)rows,
54      (void *)cols));
55 
56   if (!form)
57     RETURN(E_BAD_ARGUMENT);
58 
59   if (!(form->field))
60     RETURN(E_NOT_CONNECTED);
61 
62   if (rows)
63     *rows = form->rows;
64   if (cols)
65     *cols = form->cols;
66 
67   RETURN(E_OK);
68 }
69 
70 /* frm_scale.c ends here */
71