65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
/*
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*********************************************************************************************************
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* uC/GUI
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* Universal graphic software for embedded applications
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*
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* (c) Copyright 2002, Micrium Inc., Weston, FL
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* (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
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*
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* µC/GUI is protected by international copyright laws. Knowledge of the
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* source code may not be used to write a similar product. This file may
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* only be used in accordance with a license and should not be redistributed
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* in any way. We appreciate your understanding and fairness.
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*
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----------------------------------------------------------------------
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File : GUI_ARRAY_ResizeItem.c
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Purpose : Array handling routines
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---------------------------END-OF-HEADER------------------------------
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*/
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#include "GUI_ARRAY.h"
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#include <string.h>
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#if GUI_WINSUPPORT
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/*********************************************************************
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*
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* public code
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*
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**********************************************************************
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*/
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/*********************************************************************
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*
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* GUI_ARRAY_ResizeItem
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*
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* Purpose:
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* Resizes one element in a GUI_ARRAY.
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* Return value:
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* Handle of allocated memory block if successful
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* 0 if failed
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*
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*/
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void* GUI_ARRAY_ResizeItem(GUI_ARRAY* pThis, unsigned int Index, int Len) {
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void* r = NULL;
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WM_HMEM hNew;
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hNew = GUI_ALLOC_AllocZero(Len);
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if (hNew) {
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void* pOld = GUI_ARRAY_GetpItem(pThis, Index);
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void* pNew = GUI_ALLOC_h2p(hNew);
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memcpy(pNew, pOld, Len);
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if (GUI_ARRAY_SethItem(pThis, Index, hNew)) {
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GUI_ALLOC_FreePtr(&hNew); /* Free on error */
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} else {
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r = pNew;
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}
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}
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return r;
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}
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#else /* avoid empty object files */
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void GUI_ARRAY_ResizeItem_C(void);
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void GUI_ARRAY_ResizeItem_C(void){}
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#endif
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