1 /**************************************************************************/
2 /* */
3 /* Copyright (c) Microsoft Corporation. All rights reserved. */
4 /* */
5 /* This software is licensed under the Microsoft Software License */
6 /* Terms for Microsoft Azure RTOS. Full text of the license can be */
7 /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
8 /* and in the root directory of this software. */
9 /* */
10 /**************************************************************************/
11
12
13 /**************************************************************************/
14 /**************************************************************************/
15 /** */
16 /** GUIX Component */
17 /** */
18 /** Widget Management (Widget) */
19 /** */
20 /**************************************************************************/
21
22 #define GX_SOURCE_CODE
23
24
25 /* Include necessary system files. */
26
27 #include "gx_api.h"
28 #include "gx_widget.h"
29
30 /**************************************************************************/
31 /* */
32 /* FUNCTION RELEASE */
33 /* */
34 /* _gxe_widget_top_visible_child_find PORTABLE C */
35 /* 6.1 */
36 /* AUTHOR */
37 /* */
38 /* Kenneth Maxwell, Microsoft Corporation */
39 /* */
40 /* DESCRIPTION */
41 /* */
42 /* This function checks for errors in the */
43 /* gx_widget_top_visible_child_find function call. */
44 /* */
45 /* INPUT */
46 /* */
47 /* parent Pointer to parent widget to */
48 /* start search from */
49 /* return_widget Pointer to destination for */
50 /* found widget */
51 /* */
52 /* OUTPUT */
53 /* */
54 /* status Completion status */
55 /* */
56 /* CALLS */
57 /* */
58 /* _gx_widget_top_visible_child_find Actual */
59 /* widget_previous_sibling_get */
60 /* function. */
61 /* */
62 /* CALLED BY */
63 /* */
64 /* Application Code */
65 /* */
66 /* RELEASE HISTORY */
67 /* */
68 /* DATE NAME DESCRIPTION */
69 /* */
70 /* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
71 /* 09-30-2020 Kenneth Maxwell Modified comment(s), */
72 /* resulting in version 6.1 */
73 /* */
74 /**************************************************************************/
_gxe_widget_top_visible_child_find(GX_WIDGET * parent,GX_WIDGET ** return_widget)75 UINT _gxe_widget_top_visible_child_find(GX_WIDGET *parent, GX_WIDGET **return_widget)
76 {
77 UINT status;
78 /* Check for invalid input pointers. */
79 if ((parent == GX_NULL) || (return_widget == GX_NULL))
80 {
81 return(GX_PTR_ERROR);
82 }
83
84 /* Check for invalid widget. */
85 if (parent -> gx_widget_type == 0)
86 {
87 return(GX_INVALID_WIDGET);
88 }
89
90 /* Call actual widget find function. */
91 status = _gx_widget_top_visible_child_find(parent, return_widget);
92
93 /* Return successful completion. */
94 return(status);
95 }
96
97
