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 /**   String 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 /*  FUNCTION                                               RELEASE        */
35 /*                                                                        */
36 /*    _gxe_string_scroll_wheel_event_process              PORTABLE C      */
37 /*                                                           6.1          */
38 /*  AUTHOR                                                                */
39 /*                                                                        */
40 /*    Kenneth Maxwell, Microsoft Corporation                              */
41 /*                                                                        */
42 /*  DESCRIPTION                                                           */
43 /*                                                                        */
44 /*    This function checks for errors in string scroll wheel event        */
45 /*    process call.                                                       */
46 /*                                                                        */
47 /*  INPUT                                                                 */
48 /*                                                                        */
49 /*    wheel                                 Text scroll wheel control     */
50 /*                                            block                       */
51 /*    event_ptr                             Event to be processed         */
52 /*                                                                        */
53 /*  OUTPUT                                                                */
54 /*                                                                        */
55 /*    status                                Completion status             */
56 /*                                                                        */
57 /*  CALLS                                                                 */
58 /*                                                                        */
59 /*    _gx_string_scroll_wheel_event_process Actual string scroll wheel    */
60 /*                                            event process call          */
61 /*                                                                        */
62 /*  CALLED BY                                                             */
63 /*                                                                        */
64 /*    Application Code                                                    */
65 /*                                                                        */
66 /*  RELEASE HISTORY                                                       */
67 /*                                                                        */
68 /*    DATE              NAME                      DESCRIPTION             */
69 /*                                                                        */
70 /*  09-30-2020     Kenneth Maxwell          Initial Version 6.1           */
71 /*                                                                        */
72 /**************************************************************************/
_gxe_string_scroll_wheel_event_process(GX_STRING_SCROLL_WHEEL * wheel,GX_EVENT * event_ptr)73 UINT _gxe_string_scroll_wheel_event_process(GX_STRING_SCROLL_WHEEL *wheel, GX_EVENT *event_ptr)
74 {
75 UINT status;
76 
77     /* Check for appropriate caller.  */
78     GX_INIT_AND_THREADS_CALLER_CHECKING
79 
80     /* Check for invalid pointer. */
81     if ((wheel == GX_NULL) || (event_ptr == GX_NULL))
82     {
83         return GX_PTR_ERROR;
84     }
85 
86     /* Check for invalid widget.  */
87     if (wheel -> gx_widget_type == 0)
88     {
89         return(GX_INVALID_WIDGET);
90     }
91 
92     status = _gx_string_scroll_wheel_event_process(wheel, event_ptr);
93 
94     return status;
95 }
96 
97