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/*--------------------------------------------------------------------------* * * Microsoft Windows * Copyright (C) Microsoft Corporation, 1992 - 000 * * File: regutil.inl * * Contents: Inline functions for regutil.h * * History: 24-Apr-2000 jeffro Created * *--------------------------------------------------------------------------*/
#pragma once
#include "regkeyex.h"
/*+-------------------------------------------------------------------------* * IsIndirectStringSpecifier * * Returns true if the given string looks like it might be an indirect * string specifier acceptable to SHLoadRegUIString, i.e. "@dllname,-id". * * Returns false otherwise *--------------------------------------------------------------------------*/
inline bool IsIndirectStringSpecifier (LPCTSTR psz){ return ((psz != NULL) && (psz[0] == _T('@')) && (_tcsstr(psz, _T(",-")) != NULL));}
/*+-------------------------------------------------------------------------* * ScGetSnapinNameFromRegistry * * Loads the name of a snap-in from the given snap-in CLSID. * * The template type StringType can be any string class that supports * MFC's CString interface (i.e. MFC's CString, WTL::CString, or MMC's * CStr). *--------------------------------------------------------------------------*/
template<class StringType>SC ScGetSnapinNameFromRegistry ( const CLSID& clsid, StringType& str){ DECLARE_SC (sc, _T("ScGetSnapinNameFromRegistry"));
/* * convert class id to string */ OLECHAR szClsid[40]; if (!StringFromGUID2 (clsid, szClsid, countof(szClsid))) return (sc = E_INVALIDARG);
/* * load the name */ USES_CONVERSION; sc = ScGetSnapinNameFromRegistry (OLE2T(szClsid), str); if (sc) return (sc);
return (sc);}
/*+-------------------------------------------------------------------------* * ScGetSnapinNameFromRegistry * * Loads the name of a snap-in from the given snap-in CLSID string. * * The template type StringType can be any string class that supports * MFC's CString interface (i.e. MFC's CString, WTL::CString, or MMC's * CStr). *--------------------------------------------------------------------------*/
template<class StringType>SC ScGetSnapinNameFromRegistry ( LPCTSTR pszClsid, StringType& str){ DECLARE_SC (sc, _T("ScGetSnapinNameFromRegistry"));
/* * open HKLM\Software\Microsoft\MMC\SnapIns\{CLSID} */ StringType strKeyName = StringType(SNAPINS_KEY) + _T("\\") + pszClsid; CRegKeyEx SnapinKey; LONG lRet = SnapinKey.Open (HKEY_LOCAL_MACHINE, strKeyName, KEY_READ); if (ERROR_SUCCESS != lRet) return (sc = HRESULT_FROM_WIN32 (lRet));
/* * load the string */ sc = ScGetSnapinNameFromRegistry (SnapinKey, str); if (sc) return (sc);
return (sc);}
/*+-------------------------------------------------------------------------* * ScGetSnapinNameFromRegistry * * Loads the name of a snap-in from the given open snap-in registry key. * First, we'll try to use SHLoadRegUIString to resolve an indirect name * in the "NameStringIndirect" value. If that fails (because "NameString- * Indirect" isn't registered, because the registered DLL can't be loaded, * etc.), we'll fall back to the old "NameString" entry. * * The template type StringType can be any string class that supports * MFC's CString interface (i.e. MFC's CString, WTL::CString, or MMC's * CStr). *--------------------------------------------------------------------------*/
template<class StringType>SC ScGetSnapinNameFromRegistry ( CRegKeyEx& key, /* I:snap-in's key, opened for read */ StringType& str) /* O:name of snap-in */{ DECLARE_SC (sc, _T("ScGetSnapinNameFromRegistry"));
/* * try to load the MUI-friendly name first, ignoring errors */ sc = key.ScLoadRegUIString (g_szNameStringIndirect, str);
/* * if an error occurred, or ScLoadReagUIString couldn't resolve the * @dllname syntax, or the returned string was empty, fall back * on the legacy registry entry */ if (sc.IsError() || str.IsEmpty() || IsIndirectStringSpecifier(str)) sc = key.ScQueryString (g_szNameString, str, NULL);
return (sc);}
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