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76 lines
2.1 KiB
76 lines
2.1 KiB
/*==========================================================================;
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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: guidutil.cpp
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* Content: Some GUID related utility functions
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*
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* History:
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* Date By Reason
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* ============
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* 08/19/99 pnewson created
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***************************************************************************/
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#include "guidutil.h"
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#include "stdio.h"
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#undef DPF_MODNAME
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#define DPF_MODNAME "DVStringFromGUID"
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HRESULT DVStringFromGUID(const GUID* lpguid, WCHAR* swzBuf, DWORD dwNumChars)
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{
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if (dwNumChars < GUID_STRING_LEN)
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{
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return E_FAIL;
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}
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swprintf(
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swzBuf,
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L"{%-08.8X-%-04.4X-%-04.4X-%02.2X%02.2X-%02.2X%02.2X%02.2X%02.2X%02.2X%02.2X}",
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lpguid->Data1,
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lpguid->Data2,
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lpguid->Data3,
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lpguid->Data4[0],
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lpguid->Data4[1],
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lpguid->Data4[2],
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lpguid->Data4[3],
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lpguid->Data4[4],
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lpguid->Data4[5],
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lpguid->Data4[6],
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lpguid->Data4[7] );
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return S_OK;
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}
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#undef DPF_MODNAME
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#define DPF_MODNAME "DVGUIDFromString"
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HRESULT DVGUIDFromString(const WCHAR* wszBuf, GUID* lpguid)
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{
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UINT aiTmp[10];
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if( swscanf( wszBuf, L"{%8X-%4X-%4X-%2X%2X-%2X%2X%2X%2X%2X%2X}",
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&lpguid->Data1,
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&aiTmp[0], &aiTmp[1],
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&aiTmp[2], &aiTmp[3],
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&aiTmp[4], &aiTmp[5],
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&aiTmp[6], &aiTmp[7],
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&aiTmp[8], &aiTmp[9] ) != 11 )
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{
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ZeroMemory(lpguid, sizeof(GUID));
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return FALSE;
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}
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else
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{
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lpguid->Data2 = (USHORT) aiTmp[0];
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lpguid->Data3 = (USHORT) aiTmp[1];
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lpguid->Data4[0] = (BYTE) aiTmp[2];
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lpguid->Data4[1] = (BYTE) aiTmp[3];
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lpguid->Data4[2] = (BYTE) aiTmp[4];
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lpguid->Data4[3] = (BYTE) aiTmp[5];
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lpguid->Data4[4] = (BYTE) aiTmp[6];
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lpguid->Data4[5] = (BYTE) aiTmp[7];
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lpguid->Data4[6] = (BYTE) aiTmp[8];
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lpguid->Data4[7] = (BYTE) aiTmp[9];
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return TRUE;
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}
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}
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