GUIDEV_Clear.c
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上传日期:2017-08-10
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- /*
- *********************************************************************************************************
- * uC/GUI
- * Universal graphic software for embedded applications
- *
- * (c) Copyright 2002, Micrium Inc., Weston, FL
- * (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
- *
- * 礐/GUI is protected by international copyright laws. Knowledge of the
- * source code may not be used to write a similar product. This file may
- * only be used in accordance with a license and should not be redistributed
- * in any way. We appreciate your understanding and fairness.
- *
- ----------------------------------------------------------------------
- File : GUIDev1.C
- Purpose : Implementation of memory devices, add. module
- ---------------------------END-OF-HEADER------------------------------
- */
- #include "GUI_Protected.h"
- #include "GUIDebug.h"
- #include <string.h>
- /* Memory device capabilities are compiled only if support for them is enabled. */
- #if GUI_SUPPORT_MEMDEV
- /*
- ************************************************
- *
- * Clear
- *
- *************************************************
- */
- void GUI_MEMDEV_Clear(GUI_MEMDEV_Handle hMem) {
- if (!hMem) {
- if ((hMem = GUI_Context.hDevData) ==0) {
- return;
- }
- }
- {
- GUI_MEMDEV* pDev = GUI_MEMDEV_h2p(hMem); /* Convert to pointer */
- GUI_USAGE_h hUsage = pDev->hUsage;
- if (hUsage) {
- GUI_USAGE* pUsage = GUI_USAGE_h2p(hUsage);
- GUI_USAGE_Clear(pUsage);
- }/* else {
- GUI_Clear();
- }*/
- }
- }
- #else
- void GUIDEV_Clear(void) {} /* avoid empty object files */
- #endif /* GUI_MEMDEV_SUPPORT */