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 /** Canvas Management (Canvas) */
19 /** */
20 /**************************************************************************/
21
22 #define GX_SOURCE_CODE
23
24
25 /* Include necessary system files. */
26
27 #include "gx_api.h"
28 #include "gx_canvas.h"
29 #include "gx_system.h"
30
31 /* Bring in externs for caller checking code. */
32 GX_CALLER_CHECKING_EXTERNS
33
34 /**************************************************************************/
35 /* */
36 /* FUNCTION RELEASE */
37 /* */
38 /* _gxe_canvas_pixel_draw PORTABLE C */
39 /* 6.1 */
40 /* AUTHOR */
41 /* */
42 /* Kenneth Maxwell, Microsoft Corporation */
43 /* */
44 /* DESCRIPTION */
45 /* */
46 /* This function checks errors in the canvas pixel draw function. */
47 /* */
48 /* INPUT */
49 /* */
50 /* position x,y position to draw to */
51 /* */
52 /* OUTPUT */
53 /* */
54 /* status Completion status */
55 /* */
56 /* CALLS */
57 /* */
58 /* _gx_canvas_pixel_draw The actual function */
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_canvas_pixel_draw(GX_POINT position)73 UINT _gxe_canvas_pixel_draw(GX_POINT position)
74 {
75 UINT status;
76
77 /* Check for appropriate caller. */
78 GX_INIT_AND_THREADS_CALLER_CHECKING
79
80 if (_gx_system_current_draw_context == GX_NULL)
81 {
82 return GX_INVALID_CONTEXT;
83 }
84
85 /* Call the actual function. */
86 status = _gx_canvas_pixel_draw(position);
87
88 /* Return completion status. */
89 return(status);
90 }
91
92
