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 /* Bring in externs for caller checking code. */
31 GX_CALLER_CHECKING_EXTERNS
32
33 /**************************************************************************/
34 /* */
35 /* FUNCTION RELEASE */
36 /* */
37 /* _gxe_widget_draw_set PORTABLE C */
38 /* 6.1 */
39 /* AUTHOR */
40 /* */
41 /* Kenneth Maxwell, Microsoft Corporation */
42 /* */
43 /* DESCRIPTION */
44 /* */
45 /* This function checks for errors in the widget draw set function */
46 /* call. */
47 /* */
48 /* INPUT */
49 /* */
50 /* widget Widget control block */
51 /* draw_func pointer to drawing function */
52 /* */
53 /* OUTPUT */
54 /* */
55 /* status Completion status */
56 /* */
57 /* CALLS */
58 /* */
59 /* _gx_widget_draw_set Actual widget draw set function */
60 /* */
61 /* CALLED BY */
62 /* */
63 /* application */
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_draw_set(GX_WIDGET * widget,VOID (* draw_func)(GX_WIDGET *))74 UINT _gxe_widget_draw_set(GX_WIDGET *widget, VOID (*draw_func)(GX_WIDGET *))
75 {
76 UINT status;
77
78 /* Check for appropriate caller. */
79 GX_INIT_AND_THREADS_CALLER_CHECKING
80
81 /* Check for invalid input pointers. */
82 if ((widget == GX_NULL) || (draw_func == GX_NULL))
83 {
84 return(GX_PTR_ERROR);
85 }
86
87 /* Check for invalid widget. */
88 if (widget -> gx_widget_type == 0)
89 {
90 return(GX_INVALID_WIDGET);
91 }
92
93 /* Call actual widget draw set function. */
94 status = _gx_widget_draw_set(widget, draw_func);
95
96 /* Return successful completion. */
97 return(status);
98 }
99
100
