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 /** Screen Stack Management (Screen Stack) */
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 #include "gx_screen_stack.h"
29
30 /**************************************************************************/
31 /* */
32 /* FUNCTION RELEASE */
33 /* */
34 /* _gx_screen_stack_create PORTABLE C */
35 /* 6.1 */
36 /* AUTHOR */
37 /* */
38 /* Kenneth Maxwell, Microsoft Corporation */
39 /* */
40 /* DESCRIPTION */
41 /* */
42 /* This function initializes a screen stack. */
43 /* */
44 /* INPUT */
45 /* */
46 /* control Screen stack control block. */
47 /* memory Memory address at which to */
48 /* create screen stack. */
49 /* size Memory size in bytes. */
50 /* */
51 /* OUTPUT */
52 /* */
53 /* status Completion status */
54 /* */
55 /* CALLS */
56 /* */
57 /* None */
58 /* */
59 /* CALLED BY */
60 /* */
61 /* Application Code */
62 /* */
63 /* RELEASE HISTORY */
64 /* */
65 /* DATE NAME DESCRIPTION */
66 /* */
67 /* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
68 /* 09-30-2020 Kenneth Maxwell Modified comment(s), */
69 /* resulting in version 6.1 */
70 /* */
71 /**************************************************************************/
_gx_screen_stack_create(GX_SCREEN_STACK_CONTROL * control,GX_WIDGET ** memory,INT size)72 UINT _gx_screen_stack_create(GX_SCREEN_STACK_CONTROL *control, GX_WIDGET **memory, INT size)
73 {
74 control -> gx_screen_stack_control_memory = memory;
75 control -> gx_screen_stack_control_max = (INT)((UINT)size / (sizeof(GX_WIDGET *) << 1));
76 control -> gx_screen_stack_control_top = -1;
77
78 return(GX_SUCCESS);
79 }
80
81
