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 (Generic 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_generic_scroll_wheel_event_process PORTABLE C */
37 /* 6.1.7 */
38 /* AUTHOR */
39 /* */
40 /* Ting Zhu, Microsoft Corporation */
41 /* */
42 /* DESCRIPTION */
43 /* */
44 /* This function checks for errors in the generic scroll wheel event */
45 /* process function call. */
46 /* */
47 /* INPUT */
48 /* */
49 /* wheel Generic scroll wheel control */
50 /* block */
51 /* event_ptr Pointer to event to process */
52 /* */
53 /* OUTPUT */
54 /* */
55 /* status Completion status */
56 /* */
57 /* CALLS */
58 /* */
59 /* _gxe_generic_scroll_wheel_event_process */
60 /* Actual generic scroll wheel */
61 /* event process function */
62 /* */
63 /* CALLED BY */
64 /* */
65 /* Application Code */
66 /* */
67 /* RELEASE HISTORY */
68 /* */
69 /* DATE NAME DESCRIPTION */
70 /* */
71 /* 06-02-2021 Ting Zhu Initial Version 6.1.7 */
72 /* */
73 /**************************************************************************/
_gxe_generic_scroll_wheel_event_process(GX_GENERIC_SCROLL_WHEEL * wheel,GX_EVENT * event_ptr)74 UINT _gxe_generic_scroll_wheel_event_process(GX_GENERIC_SCROLL_WHEEL *wheel, GX_EVENT *event_ptr)
75 {
76
77 /* Check for appropriate caller. */
78 GX_INIT_AND_THREADS_CALLER_CHECKING
79
80 /* Check for invalid input pointers. */
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 /* Call the actual generic scroll wheel event process function. */
93 return _gx_generic_scroll_wheel_event_process(wheel, event_ptr);
94 }
95
96
