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 /**   System Management (System)                                          */
19 /**                                                                       */
20 /**************************************************************************/
21 
22 #define GX_SOURCE_CODE
23 
24 
25 /* Include necessary system files.  */
26 
27 #include "gx_api.h"
28 #include "gx_system.h"
29 
30 /* Bring in externs for caller checking code.  */
31 GX_CALLER_CHECKING_EXTERNS
32 
33 /**************************************************************************/
34 /*                                                                        */
35 /*  FUNCTION                                               RELEASE        */
36 /*                                                                        */
37 /*    _gxe_system_screen_stack_get                        PORTABLE C      */
38 /*                                                           6.1          */
39 /*  AUTHOR                                                                */
40 /*                                                                        */
41 /*    Kenneth Maxwell, Microsoft Corporation                              */
42 /*                                                                        */
43 /*  DESCRIPTION                                                           */
44 /*                                                                        */
45 /*    This function checks errors in the screen stack get function.       */
46 /*                                                                        */
47 /*  INPUT                                                                 */
48 /*                                                                        */
49 /*    None                                                                */
50 /*                                                                        */
51 /*  OUTPUT                                                                */
52 /*                                                                        */
53 /*    status                                Completion status             */
54 /*                                                                        */
55 /*  CALLS                                                                 */
56 /*                                                                        */
57 /*    _gx_system_screen_stack_get           The actual system screen      */
58 /*                                            stack get routine           */
59 /*                                                                        */
60 /*  CALLED BY                                                             */
61 /*                                                                        */
62 /*    Application Code                                                    */
63 /*                                                                        */
64 /*  RELEASE HISTORY                                                       */
65 /*                                                                        */
66 /*    DATE              NAME                      DESCRIPTION             */
67 /*                                                                        */
68 /*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
69 /*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
70 /*                                            resulting in version 6.1    */
71 /*                                                                        */
72 /**************************************************************************/
_gxe_system_screen_stack_get(GX_WIDGET ** popped_parent,GX_WIDGET ** popped_screen)73 UINT  _gxe_system_screen_stack_get(GX_WIDGET **popped_parent, GX_WIDGET **popped_screen)
74 {
75     UINT status;
76 
77     /* Check for appropriate caller.  */
78     GX_INIT_AND_THREADS_CALLER_CHECKING
79 
80     if (!_gx_system_screen_stack.gx_screen_stack_control_memory)
81     {
82         return(GX_PTR_ERROR);
83     }
84 
85     /* Call actual system screen stack get function.  */
86     status = _gx_system_screen_stack_get(popped_parent, popped_screen);
87 
88     /* Return the error status from system screen stack pop.  */
89     return(status);
90 }
91 
92