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 /** Canvas Management (Canvas) */
18 /** */
19 /**************************************************************************/
20
21 #define GX_SOURCE_CODE
22
23
24 /* Include necessary system files. */
25
26 #include "gx_api.h"
27 #include "gx_canvas.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_canvas_pixel_draw PORTABLE C */
38 /* 6.1 */
39 /* AUTHOR */
40 /* */
41 /* Kenneth Maxwell, Microsoft Corporation */
42 /* */
43 /* DESCRIPTION */
44 /* */
45 /* This function checks errors in the canvas pixel draw function. */
46 /* */
47 /* INPUT */
48 /* */
49 /* position x,y position to draw to */
50 /* */
51 /* OUTPUT */
52 /* */
53 /* status Completion status */
54 /* */
55 /* CALLS */
56 /* */
57 /* _gx_canvas_pixel_draw The actual function */
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_canvas_pixel_draw(GX_POINT position)72 UINT _gxe_canvas_pixel_draw(GX_POINT position)
73 {
74 UINT status;
75
76 /* Check for appropriate caller. */
77 GX_INIT_AND_THREADS_CALLER_CHECKING
78
79 if (_gx_system_current_draw_context == GX_NULL)
80 {
81 return GX_INVALID_CONTEXT;
82 }
83
84 /* Call the actual function. */
85 status = _gx_canvas_pixel_draw(position);
86
87 /* Return completion status. */
88 return(status);
89 }
90
91
