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 /**   Scroll Wheel Management (Scroll Wheel)                              */
19 /**                                                                       */
20 /**************************************************************************/
21 
22 #define GX_SOURCE_CODE
23 
24 
25 /* Include necessary system files.  */
26 
27 #include "gx_api.h"
28 #include "gx_scroll_wheel.h"
29 
30 GX_CALLER_CHECKING_EXTERNS
31 
32 
33 /**************************************************************************/
34 /*                                                                        */
35 /*  FUNCTION                                               RELEASE        */
36 /*                                                                        */
37 /*    _gxe_scroll_wheel_event_process                     PORTABLE C      */
38 /*                                                           6.1          */
39 /*  AUTHOR                                                                */
40 /*                                                                        */
41 /*    Kenneth Maxwell, Microsoft Corporation                              */
42 /*                                                                        */
43 /*  DESCRIPTION                                                           */
44 /*                                                                        */
45 /*    This function checks for errors in scroll wheel event process.      */
46 /*                                                                        */
47 /*  INPUT                                                                 */
48 /*                                                                        */
49 /*    wheel                                 Scroll wheel control block    */
50 /*    event_ptr                             Event to be processed         */
51 /*                                                                        */
52 /*  OUTPUT                                                                */
53 /*                                                                        */
54 /*    status                                Completion status             */
55 /*                                                                        */
56 /*  CALLS                                                                 */
57 /*                                                                        */
58 /*    _gx_scroll_wheel_event_process        Actual scroll wheel event     */
59 /*                                            process                     */
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_scroll_wheel_event_process(GX_SCROLL_WHEEL * wheel,GX_EVENT * event_ptr)74 UINT _gxe_scroll_wheel_event_process(GX_SCROLL_WHEEL *wheel, GX_EVENT *event_ptr)
75 {
76 UINT status;
77 
78     /* Check for appropriate caller.  */
79     GX_INIT_AND_THREADS_CALLER_CHECKING
80 
81     if ((wheel == GX_NULL) || (event_ptr == GX_NULL))
82     {
83         return GX_PTR_ERROR;
84     }
85 
86     if (wheel -> gx_widget_type == 0)
87     {
88         return GX_INVALID_WIDGET;
89     }
90 
91     status = _gx_scroll_wheel_event_process(wheel, event_ptr);
92 
93     return status;
94 }
95 
96