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_child_detect 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 widget child detect function */
43 /* call. */
44 /* */
45 /* INPUT */
46 /* */
47 /* parent Pointer to parent widget */
48 /* child Pointer to child widget */
49 /* return_detect Pointer to destination for */
50 /* detection */
51 /* */
52 /* OUTPUT */
53 /* */
54 /* status Completion status */
55 /* */
56 /* CALLS */
57 /* */
58 /* _gx_widget_child_detect Actual widget child detect */
59 /* function */
60 /* */
61 /* CALLED BY */
62 /* */
63 /* GUIX 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_child_detect(GX_WIDGET * parent,GX_WIDGET * child,GX_BOOL * return_detect)74 UINT _gxe_widget_child_detect(GX_WIDGET *parent, GX_WIDGET *child, GX_BOOL *return_detect)
75 {
76 UINT status;
77
78 /* Check for invalid input pointers. */
79 if ((parent == GX_NULL) || (child == GX_NULL) || (return_detect == GX_NULL))
80 {
81 return(GX_PTR_ERROR);
82 }
83
84 /* Check for invalid parent and child widget. */
85 if ((parent -> gx_widget_type == 0) ||
86 (child -> gx_widget_type == 0))
87 {
88 return(GX_INVALID_WIDGET);
89 }
90
91 /* Call actual widget child detect function. */
92 status = _gx_widget_child_detect(parent, child, return_detect);
93
94 /* Return completion status. */
95 return(status);
96 }
97
98
