1 /***************************************************************************
2 * Copyright (c) 2024 Microsoft Corporation
3 *
4 * This program and the accompanying materials are made available under the
5 * terms of the MIT License which is available at
6 * https://opensource.org/licenses/MIT.
7 *
8 * SPDX-License-Identifier: MIT
9 **************************************************************************/
10
11
12 /**************************************************************************/
13 /**************************************************************************/
14 /** */
15 /** GUIX Component */
16 /** */
17 /** Widget Management (Widget) */
18 /** */
19 /**************************************************************************/
20
21 #define GX_SOURCE_CODE
22
23
24 /* Include necessary system files. */
25
26 #include "gx_api.h"
27 #include "gx_widget.h"
28
29 /* Bring in externs for caller checking code. */
30 GX_CALLER_CHECKING_EXTERNS
31
32 /**************************************************************************/
33 /* */
34 /* FUNCTION RELEASE */
35 /* */
36 /* _gxe_widget_create PORTABLE C */
37 /* 6.1 */
38 /* AUTHOR */
39 /* */
40 /* Kenneth Maxwell, Microsoft Corporation */
41 /* */
42 /* DESCRIPTION */
43 /* */
44 /* This function checks for errors in the widget create function call. */
45 /* */
46 /* INPUT */
47 /* */
48 /* widget Widget control block */
49 /* name Name of widget */
50 /* parent Parent widget control block */
51 /* style Style of widget */
52 /* Id Application-defined ID of */
53 /* the widget */
54 /* size Widget size */
55 /* */
56 /* OUTPUT */
57 /* */
58 /* status Completion status */
59 /* */
60 /* CALLS */
61 /* */
62 /* _gx_widget_create Actual widget create function */
63 /* */
64 /* CALLED BY */
65 /* */
66 /* Application Code */
67 /* */
68 /* RELEASE HISTORY */
69 /* */
70 /* DATE NAME DESCRIPTION */
71 /* */
72 /* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
73 /* 09-30-2020 Kenneth Maxwell Modified comment(s), */
74 /* resulting in version 6.1 */
75 /* */
76 /**************************************************************************/
_gxe_widget_create(GX_WIDGET * widget,GX_CONST GX_CHAR * name,GX_WIDGET * parent,ULONG style,USHORT Id,GX_CONST GX_RECTANGLE * size,UINT widget_block_size)77 UINT _gxe_widget_create(GX_WIDGET *widget, GX_CONST GX_CHAR *name, GX_WIDGET *parent,
78 ULONG style, USHORT Id, GX_CONST GX_RECTANGLE *size, UINT widget_block_size)
79 {
80 UINT status;
81
82 /* Check for appropriate caller. */
83 GX_INIT_AND_THREADS_CALLER_CHECKING
84
85 /* Check for invalid input pointers. */
86 if ((widget == GX_NULL) || (size == GX_NULL))
87 {
88 return(GX_PTR_ERROR);
89 }
90
91 /* Check for widget already created. */
92 if (widget -> gx_widget_type != 0)
93 {
94 return(GX_ALREADY_CREATED);
95 }
96
97 /* Check for invalid parent widget. */
98 if (parent && (parent -> gx_widget_type == 0))
99 {
100 return(GX_INVALID_WIDGET);
101 }
102
103 /* Check for invalid control block size. */
104 if (widget_block_size != sizeof(GX_WIDGET))
105 {
106 return(GX_INVALID_SIZE);
107 }
108
109 /* Call actual widget create function. */
110 status = _gx_widget_create(widget, name, parent, style, Id, size);
111
112 /* Return completion status. */
113 return(status);
114 }
115
116
