81 lines
1.5 KiB
C++
81 lines
1.5 KiB
C++
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/*==========================================================================
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*
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* Copyright (C) 1999 Microsoft Corporation. All Rights Reserved.
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*
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* File: dpvxlib.cpp
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* Content: Useful char utility functions lib for sample apps
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*
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* History:
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* Date By Reason
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* ==== == ======
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* 10/07/99 rodtoll Created It
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* 06/28/2000 rodtoll Prefix Bug #38033
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*
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***************************************************************************/
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#include "dpvxlibpch.h"
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// Conversion Functions
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int DPVDX_WideToAnsi(LPSTR lpStr,LPWSTR lpWStr,int cchStr)
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{
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int rval;
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BOOL bDefault = FALSE;
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if (!lpWStr && cchStr)
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{
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DebugBreak();
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return 0;
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}
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// use the default code page (CP_ACP)
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// -1 indicates WStr must be null terminated
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rval = WideCharToMultiByte(CP_ACP,0,lpWStr,-1,lpStr,cchStr,
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"-",&bDefault);
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if (bDefault)
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{
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DebugBreak();
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}
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return rval;
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}
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HRESULT DPVDX_AllocAndConvertToANSI(LPSTR * ppszAnsi,LPWSTR lpszWide)
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{
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int iStrLen;
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if (!lpszWide)
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{
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*ppszAnsi = NULL;
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return S_OK;
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}
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// call wide to ansi to find out how big +1 for terminating NULL
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iStrLen = DPVDX_WideToAnsi(NULL,lpszWide,0) + 1;
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*ppszAnsi = new char[iStrLen];
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if (!*ppszAnsi)
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{
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return E_OUTOFMEMORY;
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}
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DPVDX_WideToAnsi(*ppszAnsi,lpszWide,iStrLen);
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return S_OK;
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}
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int DPVDX_AnsiToWide(LPWSTR lpWStr,LPSTR lpStr,int cchWStr)
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{
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int rval;
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if (!lpStr && cchWStr)
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{
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return 0;
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}
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rval = MultiByteToWideChar(CP_ACP,0,lpStr,-1,lpWStr,cchWStr);
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return rval;
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} // AnsiToWide
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