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 /**   Button Management (Button)                                          */
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 #include "gx_button.h"
30 
31 /* Bring in externs for caller checking code.  */
32 GX_CALLER_CHECKING_EXTERNS
33 
34 /**************************************************************************/
35 /*                                                                        */
36 /*  FUNCTION                                               RELEASE        */
37 /*                                                                        */
38 /*    _gxe_button_create                                  PORTABLE C      */
39 /*                                                           6.1          */
40 /*  AUTHOR                                                                */
41 /*                                                                        */
42 /*    Kenneth Maxwell, Microsoft Corporation                              */
43 /*                                                                        */
44 /*  DESCRIPTION                                                           */
45 /*                                                                        */
46 /*    This function checks for errors in the button create function call. */
47 /*                                                                        */
48 /*  INPUT                                                                 */
49 /*                                                                        */
50 /*    button                                Pointer to button control     */
51 /*                                            block                       */
52 /*    name                                  Logical name of button        */
53 /*    parent                                Pointer to parent widget      */
54 /*                                            of button                   */
55 /*    style                                 Button stuyle                 */
56 /*    button_id                             Application-defined ID of     */
57 /*                                            the button                  */
58 /*    size                                  Size of the button            */
59 
60 /*                                                                        */
61 /*  OUTPUT                                                                */
62 /*                                                                        */
63 /*    status                                Completion status             */
64 /*                                                                        */
65 /*  CALLS                                                                 */
66 /*                                                                        */
67 /*    _gx_button_create                     Actual button create function */
68 /*                                                                        */
69 /*  CALLED BY                                                             */
70 /*                                                                        */
71 /*    Application Code                                                    */
72 /*                                                                        */
73 /*  RELEASE HISTORY                                                       */
74 /*                                                                        */
75 /*    DATE              NAME                      DESCRIPTION             */
76 /*                                                                        */
77 /*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
78 /*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
79 /*                                            resulting in version 6.1    */
80 /*                                                                        */
81 /**************************************************************************/
_gxe_button_create(GX_BUTTON * button,GX_CONST GX_CHAR * name,GX_WIDGET * parent,ULONG style,USHORT button_id,GX_CONST GX_RECTANGLE * size,UINT button_control_block_size)82 UINT  _gxe_button_create(GX_BUTTON *button, GX_CONST GX_CHAR *name, GX_WIDGET *parent, ULONG style,
83                          USHORT button_id, GX_CONST GX_RECTANGLE *size, UINT button_control_block_size)
84 {
85 UINT status;
86 
87     /* Check for appropriate caller.  */
88     GX_INIT_AND_THREADS_CALLER_CHECKING
89 
90     /* Check for invalid input pointers.  */
91     if ((button == GX_NULL) || (size == GX_NULL))
92     {
93         return(GX_PTR_ERROR);
94     }
95 
96     /* Check for invalid widget control block size. */
97     if (button_control_block_size != sizeof(GX_BUTTON))
98     {
99         return(GX_INVALID_SIZE);
100     }
101 
102     /* Check for widget already created.  */
103     if (button -> gx_widget_type != 0)
104     {
105         return(GX_ALREADY_CREATED);
106     }
107 
108     /* Call the actual button create function.  */
109     status = _gx_button_create(button, name, parent, style, button_id, size);
110 
111     /* Return completion status.  */
112     return status;
113 }
114 
115