1 /* Monolith form input class.
2 * - by Richard W.M. Jones <rich@annexia.org>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the Free
16 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 * $Id: ml_form_input.h,v 1.3 2002/08/30 14:28:47 rich Exp $
21 #ifndef ML_FORM_INPUT_H
22 #define ML_FORM_INPUT_H
26 /* As with widgets, form inputs are opaque except within ml_form_input.c
29 typedef void *ml_form_input;
31 /* A pointer to this struct must occupy the second slot in every
32 * form input structure we define elsewhere (just after the widget
33 * pointer in the first slot).
35 struct ml_form_input_operations
37 void (*clear_value) (void *form_input);
38 void (*set_value) (void *form_input, const char *value);
39 const char *(*get_value) (void *form_input);
42 /* Function: ml_form_input_set_value - Operations on generic form inputs.
43 * Function: ml_form_input_get_value
44 * Function: ml_form_input_clear_value
46 * @code{ml_form_input_(set|get)_value} update the value field in any
49 * @code{ml_form_input_clear_value} clears (nulls) the value field.
51 extern void ml_form_input_set_value (ml_form_input form_input, const char *value);
52 extern const char *ml_form_input_get_value (ml_form_input form_input);
53 extern void ml_form_input_clear_value (ml_form_input form_input);
55 #endif /* ML_FORM_INPUT_H */