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 /**   System Management (System)                                          */
18 /**                                                                       */
19 /**************************************************************************/
20 
21 #define GX_SOURCE_CODE
22 
23 
24 /* Include necessary system files.  */
25 
26 #include "gx_api.h"
27 #include "gx_system.h"
28 
29 /* Bring in externs for caller checking code.  */
30 GX_CALLER_CHECKING_EXTERNS
31 
32 /**************************************************************************/
33 /*                                                                        */
34 /*  FUNCTION                                               RELEASE        */
35 /*                                                                        */
36 /*    _gxe_system_screen_stack_get                        PORTABLE C      */
37 /*                                                           6.1          */
38 /*  AUTHOR                                                                */
39 /*                                                                        */
40 /*    Kenneth Maxwell, Microsoft Corporation                              */
41 /*                                                                        */
42 /*  DESCRIPTION                                                           */
43 /*                                                                        */
44 /*    This function checks errors in the screen stack get function.       */
45 /*                                                                        */
46 /*  INPUT                                                                 */
47 /*                                                                        */
48 /*    None                                                                */
49 /*                                                                        */
50 /*  OUTPUT                                                                */
51 /*                                                                        */
52 /*    status                                Completion status             */
53 /*                                                                        */
54 /*  CALLS                                                                 */
55 /*                                                                        */
56 /*    _gx_system_screen_stack_get           The actual system screen      */
57 /*                                            stack get routine           */
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 /**************************************************************************/
_gxe_system_screen_stack_get(GX_WIDGET ** popped_parent,GX_WIDGET ** popped_screen)72 UINT  _gxe_system_screen_stack_get(GX_WIDGET **popped_parent, GX_WIDGET **popped_screen)
73 {
74     UINT status;
75 
76     /* Check for appropriate caller.  */
77     GX_INIT_AND_THREADS_CALLER_CHECKING
78 
79     if (!_gx_system_screen_stack.gx_screen_stack_control_memory)
80     {
81         return(GX_PTR_ERROR);
82     }
83 
84     /* Call actual system screen stack get function.  */
85     status = _gx_system_screen_stack_get(popped_parent, popped_screen);
86 
87     /* Return the error status from system screen stack pop.  */
88     return(status);
89 }
90 
91