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 /* _gx_widget_top_visible_child_get PORTABLE C */
35 /* 6.1 */
36 /* AUTHOR */
37 /* */
38 /* Kenneth Maxwell, Microsoft Corporation */
39 /* */
40 /* DESCRIPTION */
41 /* */
42 /* This function returns the topmost visible child of the parent. */
43 /* */
44 /* INPUT */
45 /* */
46 /* parent Pointer to parent widget */
47 /* child_return Pointer to destination for */
48 /* found widget */
49 /* */
50 /* OUTPUT */
51 /* */
52 /* status Completion status */
53 /* */
54 /* CALLS */
55 /* */
56 /* None */
57 /* */
58 /* CALLED BY */
59 /* */
60 /* application */
61 /* */
62 /* RELEASE HISTORY */
63 /* */
64 /* DATE NAME DESCRIPTION */
65 /* */
66 /* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
67 /* 09-30-2020 Kenneth Maxwell Modified comment(s), */
68 /* resulting in version 6.1 */
69 /* */
70 /**************************************************************************/
_gx_widget_top_visible_child_find(GX_WIDGET * parent,GX_WIDGET ** child_return)71 UINT _gx_widget_top_visible_child_find(GX_WIDGET *parent, GX_WIDGET **child_return)
72 {
73 GX_WIDGET *test = parent -> gx_widget_last_child;
74
75 /* walk backwards through the child list looking for visible child */
76
77 while(test)
78 {
79 if (test -> gx_widget_status & GX_STATUS_VISIBLE)
80 {
81 *child_return = test;
82 break;
83 }
84 test = test -> gx_widget_previous;
85 }
86 return GX_SUCCESS;
87 }
88
89
