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102 lines
5.0 KiB
C
102 lines
5.0 KiB
C
/***************************************************************************
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* Copyright (c) 2024 Microsoft Corporation
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*
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* This program and the accompanying materials are made available under the
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* terms of the MIT License which is available at
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* https://opensource.org/licenses/MIT.
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*
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* SPDX-License-Identifier: MIT
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**************************************************************************/
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/**************************************************************************/
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/**************************************************************************/
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/** */
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/** GUIX Component */
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/** */
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/** Canvas Management (Canvas) */
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/** */
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/**************************************************************************/
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#define GX_SOURCE_CODE
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/* Include necessary system files. */
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#include "gx_api.h"
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#include "gx_canvas.h"
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/* Bring in externs for caller checking code. */
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GX_CALLER_CHECKING_EXTERNS
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/**************************************************************************/
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/* */
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/* FUNCTION RELEASE */
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/* */
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/* _gxe_canvas_drawing_initiate PORTABLE C */
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/* 6.1 */
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/* AUTHOR */
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/* */
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/* Kenneth Maxwell, Microsoft Corporation */
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/* */
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/* DESCRIPTION */
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/* */
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/* This function checks for errors in the canvas drawing initiate */
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/* function call. */
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/* */
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/* INPUT */
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/* */
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/* canvas Canvas control block */
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/* who Widget control block pointer */
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/* dirty_area Area to draw on */
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/* */
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/* OUTPUT */
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/* */
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/* status Completion status */
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/* */
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/* CALLS */
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/* */
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/* _gx_canvas_drawing_initiate Actual canvas drawing */
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/* initiate call */
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/* */
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/* CALLED BY */
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/* */
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/* Application Code */
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/* */
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/* RELEASE HISTORY */
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/* */
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/* DATE NAME DESCRIPTION */
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/* */
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/* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
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/* 09-30-2020 Kenneth Maxwell Modified comment(s), */
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/* resulting in version 6.1 */
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/* */
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/**************************************************************************/
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UINT _gxe_canvas_drawing_initiate(GX_CANVAS *canvas, GX_WIDGET *who, GX_RECTANGLE *dirty_area)
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{
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UINT status;
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/* Check for appropriate caller. */
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GX_INIT_AND_THREADS_CALLER_CHECKING
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/* Check for the invalid input pointers. */
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if ((canvas == GX_NULL) ||
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(dirty_area == GX_NULL))
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{
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return(GX_PTR_ERROR);
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}
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if (canvas -> gx_canvas_id != GX_CANVAS_ID)
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{
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return(GX_INVALID_CANVAS);
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}
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/* Call the actual canvas drawing initiate function. */
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status = _gx_canvas_drawing_initiate(canvas, who, dirty_area);
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/* Return completion status. */
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return status;
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}
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