1 /***************************************************************************
2  * Copyright (c) 2024 Microsoft Corporation
3  *
4  * This program and the accompanying materials are made available under the
5  * terms of the MIT License which is available at
6  * https://opensource.org/licenses/MIT.
7  *
8  * SPDX-License-Identifier: MIT
9  **************************************************************************/
10 
11 
12 /**************************************************************************/
13 /**************************************************************************/
14 /**                                                                       */
15 /** GUIX Component                                                        */
16 /**                                                                       */
17 /**   Scrollbar Management (Scrollbar)                                    */
18 /**                                                                       */
19 /**************************************************************************/
20 
21 #define GX_SOURCE_CODE
22 
23 /* Include necessary system files.  */
24 
25 #include "gx_api.h"
26 #include "gx_scrollbar.h"
27 
28 /* Bring in externs for caller checking code.  */
29 GX_CALLER_CHECKING_EXTERNS
30 
31 /**************************************************************************/
32 /*                                                                        */
33 /*  FUNCTION                                               RELEASE        */
34 /*                                                                        */
35 /*    _gxe_scrollbar_value_set                            PORTABLE C      */
36 /*                                                           6.1          */
37 /*  AUTHOR                                                                */
38 /*                                                                        */
39 /*    Kenneth Maxwell, Microsoft Corporation                              */
40 /*                                                                        */
41 /*  DESCRIPTION                                                           */
42 /*                                                                        */
43 /*    This service checks errors in the scrollbar value set function call */
44 /*                                                                        */
45 /*                                                                        */
46 /*  INPUT                                                                 */
47 /*                                                                        */
48 /*    scrollbar                             Scrollbar control block       */
49 /*    value                                 New scrollbar value           */
50 /*                                                                        */
51 /*  OUTPUT                                                                */
52 /*                                                                        */
53 /*    status               Completion status                              */
54 /*                                                                        */
55 /*  CALLS                                                                 */
56 /*                                                                        */
57 /*    _gx_scrollbar_value_set The actual function                         */
58 /*                                                                        */
59 /*  CALLED BY                                                             */
60 /*                                                                        */
61 /*    Application Code                                                    */
62 /*                                                                        */
63 /*  RELEASE HISTORY                                                       */
64 /*                                                                        */
65 /*    DATE              NAME                      DESCRIPTION             */
66 /*                                                                        */
67 /*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
68 /*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
69 /*                                            resulting in version 6.1    */
70 /*                                                                        */
71 /**************************************************************************/
_gxe_scrollbar_value_set(GX_SCROLLBAR * scrollbar,INT value)72 UINT _gxe_scrollbar_value_set(GX_SCROLLBAR *scrollbar, INT value)
73 {
74 UINT status;
75 
76     /* Check for appropriate caller.  */
77     GX_INIT_AND_THREADS_CALLER_CHECKING
78 
79     /* Check for invalid input pointers.  */
80     if ((scrollbar == GX_NULL))
81     {
82         return(GX_PTR_ERROR);
83     }
84 
85     /* Check for invalid widget.  */
86     if (scrollbar -> gx_widget_type == 0)
87     {
88         return(GX_INVALID_WIDGET);
89     }
90 
91     /* Call the actual function.  */
92     status = _gx_scrollbar_value_set(scrollbar, value);
93 
94     /* Return successful completion.  */
95     return(status);
96 }
97 
98