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 /**   Widget Management (Widget)                                          */
18 /**                                                                       */
19 /**************************************************************************/
20 
21 #define GX_SOURCE_CODE
22 
23 
24 /* Include necessary system files.  */
25 
26 #include "gx_api.h"
27 #include "gx_widget.h"
28 
29 /**************************************************************************/
30 /*                                                                        */
31 /*  FUNCTION                                               RELEASE        */
32 /*                                                                        */
33 /*    _gxe_widget_previous_sibling_get                    PORTABLE C      */
34 /*                                                           6.1          */
35 /*  AUTHOR                                                                */
36 /*                                                                        */
37 /*    Kenneth Maxwell, Microsoft Corporation                              */
38 /*                                                                        */
39 /*  DESCRIPTION                                                           */
40 /*                                                                        */
41 /*    This function checks for errors in the                              */
42 /*    gx_widget_previous_sibling_get function call.                       */
43 /*                                                                        */
44 /*  INPUT                                                                 */
45 /*                                                                        */
46 /*    current                               Pointer to current widget to  */
47 /*                                            start search from           */
48 /*    return_widget                         Pointer to destination for    */
49 /*                                            found widget                */
50 /*                                                                        */
51 /*  OUTPUT                                                                */
52 /*                                                                        */
53 /*    status                                Completion status             */
54 /*                                                                        */
55 /*  CALLS                                                                 */
56 /*                                                                        */
57 /*    _gx_widget_previous_sibling_get       Actual                        */
58 /*                                            widget_previous_sibling_get */
59 /*                                            function.                   */
60 /*                                                                        */
61 /*  CALLED BY                                                             */
62 /*                                                                        */
63 /*    Application Code                                                    */
64 /*                                                                        */
65 /*  RELEASE HISTORY                                                       */
66 /*                                                                        */
67 /*    DATE              NAME                      DESCRIPTION             */
68 /*                                                                        */
69 /*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
70 /*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
71 /*                                            resulting in version 6.1    */
72 /*                                                                        */
73 /**************************************************************************/
_gxe_widget_previous_sibling_get(GX_WIDGET * current,GX_WIDGET ** return_widget)74 UINT _gxe_widget_previous_sibling_get(GX_WIDGET *current, GX_WIDGET **return_widget)
75 {
76 UINT status;
77 
78     /* Check for invalid input pointers.  */
79     if ((current == GX_NULL) || (return_widget == GX_NULL))
80     {
81         return(GX_PTR_ERROR);
82     }
83 
84     /* Check for invalid widget.  */
85     if (current -> gx_widget_type == 0)
86     {
87         return(GX_INVALID_WIDGET);
88     }
89 
90     /* Call actual widget find function.  */
91     status = _gx_widget_previous_sibling_get(current, return_widget);
92 
93     /* Return successful completion.  */
94     return(status);
95 }
96 
97