65fd5cb012
added wxUSE_NORLANDER_HEADERS for mingw32/gcc-2.95 git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3258 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
850 lines
24 KiB
C++
850 lines
24 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: msw/registry.cpp
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// Purpose: implementation of registry classes and functions
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 03.04.98
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// RCS-ID: $Id$
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// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
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// Licence: wxWindows license
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// TODO: - parsing of registry key names
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// - support of other (than REG_SZ/REG_DWORD) registry types
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// - add high level functions (RegisterOleServer, ...)
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///////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma implementation "registry.h"
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#endif
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// for compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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// other wxWindows headers
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#include "wx/string.h"
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#include "wx/intl.h"
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#include "wx/log.h"
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#include "wx/config.h" // for wxExpandEnvVars
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#ifndef __WIN16__
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// Windows headers
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/*
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#define STRICT
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#define WIN32_LEAN_AND_MEAN
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*/
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#include <windows.h>
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// other std headers
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#include <stdlib.h> // for _MAX_PATH
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#ifndef _MAX_PATH
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#define _MAX_PATH 512
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#endif
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// our header
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#define HKEY_DEFINED // already defined in windows.h
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#include "wx/msw/registry.h"
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// some registry functions don't like signed chars
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typedef unsigned char *RegString;
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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// the standard key names, short names and handles all bundled together for
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// convenient access
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static struct
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{
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HKEY hkey;
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const wxChar *szName;
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const wxChar *szShortName;
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}
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aStdKeys[] =
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{
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{ HKEY_CLASSES_ROOT, _T("HKEY_CLASSES_ROOT"), _T("HKCR") },
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#ifdef __WIN32__
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{ HKEY_CURRENT_USER, _T("HKEY_CURRENT_USER"), _T("HKCU") },
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{ HKEY_LOCAL_MACHINE, _T("HKEY_LOCAL_MACHINE"), _T("HKLM") },
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{ HKEY_USERS, _T("HKEY_USERS"), _T("HKU") }, // short name?
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{ HKEY_PERFORMANCE_DATA, _T("HKEY_PERFORMANCE_DATA"), _T("HKPD") },
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#if WINVER >= 0x0400
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{ HKEY_CURRENT_CONFIG, _T("HKEY_CURRENT_CONFIG"), _T("HKCC") },
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#ifndef __GNUWIN32__
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{ HKEY_DYN_DATA, _T("HKEY_DYN_DATA"), _T("HKDD") }, // short name?
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#endif //GNUWIN32
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#endif //WINVER >= 4.0
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#endif //WIN32
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};
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// the registry name separator (perhaps one day MS will change it to '/' ;-)
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#define REG_SEPARATOR _T('\\')
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// useful for Windows programmers: makes somewhat more clear all these zeroes
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// being passed to Windows APIs
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#define RESERVED (NULL)
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// ----------------------------------------------------------------------------
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// macros
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// ----------------------------------------------------------------------------
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// @ const_cast<> is not yet supported by all compilers
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#define CONST_CAST ((wxRegKey *)this)->
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#if !USE_MUTABLE
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#define m_dwLastError CONST_CAST m_dwLastError
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#endif
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// ----------------------------------------------------------------------------
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// non member functions
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// ----------------------------------------------------------------------------
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// removes the trailing backslash from the string if it has one
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static inline void RemoveTrailingSeparator(wxString& str);
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// returns TRUE if given registry key exists
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static bool KeyExists(WXHKEY hRootKey, const wxChar *szKey);
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// combines value and key name (uses static buffer!)
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static const wxChar *GetFullName(const wxRegKey *pKey,
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const wxChar *szValue = NULL);
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// ============================================================================
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// implementation of wxRegKey class
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// ============================================================================
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// ----------------------------------------------------------------------------
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// static functions and variables
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// ----------------------------------------------------------------------------
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const size_t wxRegKey::nStdKeys = WXSIZEOF(aStdKeys);
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// @@ should take a `StdKey key', but as it's often going to be used in loops
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// it would require casts in user code.
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const wxChar *wxRegKey::GetStdKeyName(size_t key)
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{
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// return empty string if key is invalid
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wxCHECK_MSG( key < nStdKeys, _T(""), _T("invalid key in wxRegKey::GetStdKeyName") );
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return aStdKeys[key].szName;
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}
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const wxChar *wxRegKey::GetStdKeyShortName(size_t key)
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{
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// return empty string if key is invalid
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wxCHECK( key < nStdKeys, _T("") );
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return aStdKeys[key].szShortName;
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}
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wxRegKey::StdKey wxRegKey::ExtractKeyName(wxString& strKey)
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{
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wxString strRoot = strKey.Left(REG_SEPARATOR);
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HKEY hRootKey = 0;
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size_t ui;
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for ( ui = 0; ui < nStdKeys; ui++ ) {
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if ( strRoot.CmpNoCase(aStdKeys[ui].szName) == 0 ||
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strRoot.CmpNoCase(aStdKeys[ui].szShortName) == 0 ) {
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hRootKey = aStdKeys[ui].hkey;
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break;
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}
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}
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if ( ui == nStdKeys ) {
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wxFAIL_MSG(_T("invalid key prefix in wxRegKey::ExtractKeyName."));
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hRootKey = HKEY_CLASSES_ROOT;
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}
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else {
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strKey = strKey.After(REG_SEPARATOR);
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if ( !strKey.IsEmpty() && strKey.Last() == REG_SEPARATOR )
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strKey.Truncate(strKey.Len() - 1);
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}
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return (wxRegKey::StdKey)(int)hRootKey;
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}
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wxRegKey::StdKey wxRegKey::GetStdKeyFromHkey(WXHKEY hkey)
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{
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for ( size_t ui = 0; ui < nStdKeys; ui++ ) {
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if ( (int) aStdKeys[ui].hkey == (int) hkey )
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return (StdKey)ui;
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}
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wxFAIL_MSG(_T("non root hkey passed to wxRegKey::GetStdKeyFromHkey."));
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return HKCR;
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}
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// ----------------------------------------------------------------------------
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// ctors and dtor
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// ----------------------------------------------------------------------------
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wxRegKey::wxRegKey()
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{
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m_hKey = 0;
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m_hRootKey = (WXHKEY) aStdKeys[HKCR].hkey;
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m_dwLastError = 0;
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}
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wxRegKey::wxRegKey(const wxString& strKey) : m_strKey(strKey)
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{
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m_hRootKey = (WXHKEY) aStdKeys[ExtractKeyName(m_strKey)].hkey;
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m_hKey = (WXHKEY) NULL;
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m_dwLastError = 0;
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}
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// parent is a predefined (and preopened) key
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wxRegKey::wxRegKey(StdKey keyParent, const wxString& strKey) : m_strKey(strKey)
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{
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RemoveTrailingSeparator(m_strKey);
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m_hRootKey = (WXHKEY) aStdKeys[keyParent].hkey;
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m_hKey = (WXHKEY) NULL;
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m_dwLastError = 0;
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}
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// parent is a normal regkey
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wxRegKey::wxRegKey(const wxRegKey& keyParent, const wxString& strKey)
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: m_strKey(keyParent.m_strKey)
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{
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// combine our name with parent's to get the full name
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if ( !m_strKey.IsEmpty() &&
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(strKey.IsEmpty() || strKey[0] != REG_SEPARATOR) ) {
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m_strKey += REG_SEPARATOR;
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}
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m_strKey += strKey;
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RemoveTrailingSeparator(m_strKey);
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m_hRootKey = keyParent.m_hRootKey;
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m_hKey = (WXHKEY) NULL;
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m_dwLastError = 0;
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}
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// dtor closes the key releasing system resource
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wxRegKey::~wxRegKey()
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{
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Close();
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}
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// ----------------------------------------------------------------------------
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// change the key name/hkey
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// ----------------------------------------------------------------------------
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// set the full key name
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void wxRegKey::SetName(const wxString& strKey)
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{
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Close();
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m_strKey = strKey;
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m_hRootKey = (WXHKEY) aStdKeys[ExtractKeyName(m_strKey)].hkey;
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}
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// the name is relative to the parent key
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void wxRegKey::SetName(StdKey keyParent, const wxString& strKey)
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{
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Close();
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m_strKey = strKey;
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RemoveTrailingSeparator(m_strKey);
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m_hRootKey = (WXHKEY) aStdKeys[keyParent].hkey;
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}
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// the name is relative to the parent key
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void wxRegKey::SetName(const wxRegKey& keyParent, const wxString& strKey)
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{
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Close();
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// combine our name with parent's to get the full name
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m_strKey = keyParent.m_strKey;
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if ( !strKey.IsEmpty() && strKey[0] != REG_SEPARATOR )
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m_strKey += REG_SEPARATOR;
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m_strKey += strKey;
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RemoveTrailingSeparator(m_strKey);
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m_hRootKey = keyParent.m_hRootKey;
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}
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// hKey should be opened and will be closed in wxRegKey dtor
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void wxRegKey::SetHkey(WXHKEY hKey)
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{
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Close();
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m_hKey = hKey;
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}
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// ----------------------------------------------------------------------------
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// info about the key
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// ----------------------------------------------------------------------------
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// returns TRUE if the key exists
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bool wxRegKey::Exists() const
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{
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// opened key has to exist, try to open it if not done yet
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return IsOpened() ? TRUE : KeyExists(m_hRootKey, m_strKey);
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}
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// returns the full name of the key (prefix is abbreviated if bShortPrefix)
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wxString wxRegKey::GetName(bool bShortPrefix) const
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{
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StdKey key = GetStdKeyFromHkey((StdKey) m_hRootKey);
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wxString str = bShortPrefix ? aStdKeys[key].szShortName
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: aStdKeys[key].szName;
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if ( !m_strKey.IsEmpty() )
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str << "\\" << m_strKey;
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return str;
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}
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#if defined( __GNUWIN32__ ) && !defined(wxUSE_NORLANDER_HEADERS)
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bool wxRegKey::GetKeyInfo(size_t* pnSubKeys,
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size_t* pnMaxKeyLen,
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size_t* pnValues,
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size_t* pnMaxValueLen) const
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#else
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bool wxRegKey::GetKeyInfo(ulong *pnSubKeys,
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ulong *pnMaxKeyLen,
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ulong *pnValues,
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ulong *pnMaxValueLen) const
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#endif
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{
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#if defined(__WIN32__) && !defined(__TWIN32__)
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m_dwLastError = ::RegQueryInfoKey
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(
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(HKEY) m_hKey,
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NULL, // class name
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NULL, // (ptr to) size of class name buffer
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RESERVED,
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pnSubKeys, // [out] number of subkeys
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pnMaxKeyLen, // [out] max length of a subkey name
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NULL, // longest subkey class name
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pnValues, // [out] number of values
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pnMaxValueLen, // [out] max length of a value name
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NULL, // longest value data
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NULL, // security descriptor
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NULL // time of last modification
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);
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if ( m_dwLastError != ERROR_SUCCESS ) {
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wxLogSysError(m_dwLastError, _("can't get info about registry key '%s'"),
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GetName().c_str());
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return FALSE;
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}
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else
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return TRUE;
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#else // Win16
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wxFAIL_MSG("GetKeyInfo() not implemented");
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return FALSE;
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#endif
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}
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// ----------------------------------------------------------------------------
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// operations
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// ----------------------------------------------------------------------------
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// opens key (it's not an error to call Open() on an already opened key)
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bool wxRegKey::Open()
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{
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if ( IsOpened() )
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return TRUE;
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HKEY tmpKey;
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m_dwLastError = RegOpenKey((HKEY) m_hRootKey, m_strKey, &tmpKey);
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if ( m_dwLastError != ERROR_SUCCESS ) {
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wxLogSysError(m_dwLastError, _("can't open registry key '%s'"),
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GetName().c_str());
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return FALSE;
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}
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else
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{
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m_hKey = (WXHKEY) tmpKey;
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return TRUE;
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}
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}
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// creates key, failing if it exists and !bOkIfExists
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bool wxRegKey::Create(bool bOkIfExists)
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{
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// check for existence only if asked (i.e. order is important!)
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if ( !bOkIfExists && Exists() ) {
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return FALSE;
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}
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if ( IsOpened() )
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return TRUE;
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HKEY tmpKey;
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m_dwLastError = RegCreateKey((HKEY) m_hRootKey, m_strKey, &tmpKey);
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if ( m_dwLastError != ERROR_SUCCESS ) {
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wxLogSysError(m_dwLastError, _("can't create registry key '%s'"),
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GetName().c_str());
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return FALSE;
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}
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else
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{
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m_hKey = (WXHKEY) tmpKey;
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return TRUE;
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}
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}
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// close the key, it's not an error to call it when not opened
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bool wxRegKey::Close()
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{
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if ( IsOpened() ) {
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m_dwLastError = RegCloseKey((HKEY) m_hKey);
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if ( m_dwLastError != ERROR_SUCCESS ) {
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wxLogSysError(m_dwLastError, _("can't close registry key '%s'"),
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GetName().c_str());
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m_hKey = 0;
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return FALSE;
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}
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else {
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m_hKey = 0;
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}
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}
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return TRUE;
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}
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// ----------------------------------------------------------------------------
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// delete keys/values
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// ----------------------------------------------------------------------------
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bool wxRegKey::DeleteSelf()
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{
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{
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wxLogNull nolog;
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if ( !Open() ) {
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// it already doesn't exist - ok!
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return TRUE;
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}
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}
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// prevent a buggy program from erasing one of the root registry keys or an
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// immediate subkey (i.e. one which doesn't have '\\' inside) of any other
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// key except HKCR (HKCR has some "deleteable" subkeys)
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if ( m_strKey.IsEmpty() || (m_hRootKey != HKCR &&
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m_strKey.Find(REG_SEPARATOR) == wxNOT_FOUND) ) {
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wxLogError(_("Registry key '%s' is needed for normal system operation,\n"
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"deleting it will leave your system in unusable state:\n"
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"operation aborted."), GetFullName(this));
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return FALSE;
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}
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// we can't delete keys while enumerating because it confuses GetNextKey, so
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// we first save the key names and then delete them all
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wxArrayString astrSubkeys;
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wxString strKey;
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long lIndex;
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bool bCont = GetFirstKey(strKey, lIndex);
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while ( bCont ) {
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astrSubkeys.Add(strKey);
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bCont = GetNextKey(strKey, lIndex);
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}
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size_t nKeyCount = astrSubkeys.Count();
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for ( size_t nKey = 0; nKey < nKeyCount; nKey++ ) {
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wxRegKey key(*this, astrSubkeys[nKey]);
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if ( !key.DeleteSelf() )
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return FALSE;
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}
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// now delete this key itself
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Close();
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m_dwLastError = RegDeleteKey((HKEY) m_hRootKey, m_strKey);
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if ( m_dwLastError != ERROR_SUCCESS ) {
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wxLogSysError(m_dwLastError, _("can't delete key '%s'"),
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GetName().c_str());
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return FALSE;
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}
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return TRUE;
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}
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bool wxRegKey::DeleteKey(const wxChar *szKey)
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{
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if ( !Open() )
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return FALSE;
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wxRegKey key(*this, szKey);
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return key.DeleteSelf();
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}
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bool wxRegKey::DeleteValue(const wxChar *szValue)
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{
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if ( !Open() )
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return FALSE;
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#if defined(__WIN32__) && !defined(__TWIN32__)
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m_dwLastError = RegDeleteValue((HKEY) m_hKey, WXSTRINGCAST szValue);
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if ( m_dwLastError != ERROR_SUCCESS ) {
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wxLogSysError(m_dwLastError, _("can't delete value '%s' from key '%s'"),
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szValue, GetName().c_str());
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return FALSE;
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}
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#else //WIN16
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// named registry values don't exist in Win16 world
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wxASSERT( IsEmpty(szValue) );
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// just set the (default and unique) value of the key to ""
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m_dwLastError = RegSetValue((HKEY) m_hKey, NULL, REG_SZ, "", RESERVED);
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if ( m_dwLastError != ERROR_SUCCESS ) {
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wxLogSysError(m_dwLastError, _("can't delete value of key '%s'"),
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GetName().c_str());
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return FALSE;
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}
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#endif //WIN16/32
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return TRUE;
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}
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// ----------------------------------------------------------------------------
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// access to values and subkeys
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// ----------------------------------------------------------------------------
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// return TRUE if value exists
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bool wxRegKey::HasValue(const wxChar *szValue) const
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{
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// this function should be silent, so suppress possible messages from Open()
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wxLogNull nolog;
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#ifdef __WIN32__
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if ( CONST_CAST Open() ) {
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return RegQueryValueEx((HKEY) m_hKey, WXSTRINGCAST szValue, RESERVED,
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NULL, NULL, NULL) == ERROR_SUCCESS;
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}
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else
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return FALSE;
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#else // WIN16
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// only unnamed value exists
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return IsEmpty(szValue);
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#endif // WIN16/32
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}
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// returns TRUE if this key has any values
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bool wxRegKey::HasValues() const
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{
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// suppress possible messages from GetFirstValue()
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wxLogNull nolog;
|
|
|
|
// just call GetFirstValue with dummy parameters
|
|
wxString str;
|
|
long l;
|
|
return CONST_CAST GetFirstValue(str, l);
|
|
}
|
|
|
|
// returns TRUE if this key has any subkeys
|
|
bool wxRegKey::HasSubkeys() const
|
|
{
|
|
// suppress possible messages from GetFirstKey()
|
|
wxLogNull nolog;
|
|
|
|
// just call GetFirstKey with dummy parameters
|
|
wxString str;
|
|
long l;
|
|
return CONST_CAST GetFirstKey(str, l);
|
|
}
|
|
|
|
// returns TRUE if given subkey exists
|
|
bool wxRegKey::HasSubKey(const wxChar *szKey) const
|
|
{
|
|
// this function should be silent, so suppress possible messages from Open()
|
|
wxLogNull nolog;
|
|
|
|
if ( CONST_CAST Open() )
|
|
return KeyExists(m_hKey, szKey);
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
wxRegKey::ValueType wxRegKey::GetValueType(const wxChar *szValue) const
|
|
{
|
|
#ifdef __WIN32__
|
|
if ( ! CONST_CAST Open() )
|
|
return Type_None;
|
|
|
|
DWORD dwType;
|
|
m_dwLastError = RegQueryValueEx((HKEY) m_hKey, WXSTRINGCAST szValue, RESERVED,
|
|
&dwType, NULL, NULL);
|
|
if ( m_dwLastError != ERROR_SUCCESS ) {
|
|
wxLogSysError(m_dwLastError, _("can't read value of key '%s'"),
|
|
GetName().c_str());
|
|
return Type_None;
|
|
}
|
|
|
|
return (ValueType)dwType;
|
|
#else //WIN16
|
|
return IsEmpty(szValue) ? Type_String : Type_None;
|
|
#endif //WIN16/32
|
|
}
|
|
|
|
#ifdef __WIN32__
|
|
bool wxRegKey::SetValue(const wxChar *szValue, long lValue)
|
|
{
|
|
#ifdef __TWIN32__
|
|
wxFAIL_MSG("RegSetValueEx not implemented by TWIN32");
|
|
return FALSE;
|
|
#else
|
|
if ( CONST_CAST Open() ) {
|
|
m_dwLastError = RegSetValueEx((HKEY) m_hKey, szValue, (DWORD) RESERVED, REG_DWORD,
|
|
(RegString)&lValue, sizeof(lValue));
|
|
if ( m_dwLastError == ERROR_SUCCESS )
|
|
return TRUE;
|
|
}
|
|
|
|
wxLogSysError(m_dwLastError, _("can't set value of '%s'"),
|
|
GetFullName(this, szValue));
|
|
return FALSE;
|
|
#endif
|
|
}
|
|
|
|
bool wxRegKey::QueryValue(const wxChar *szValue, long *plValue) const
|
|
{
|
|
if ( CONST_CAST Open() ) {
|
|
DWORD dwType, dwSize = sizeof(DWORD);
|
|
RegString pBuf = (RegString)plValue;
|
|
m_dwLastError = RegQueryValueEx((HKEY) m_hKey, WXSTRINGCAST szValue, RESERVED,
|
|
&dwType, pBuf, &dwSize);
|
|
if ( m_dwLastError != ERROR_SUCCESS ) {
|
|
wxLogSysError(m_dwLastError, _("can't read value of key '%s'"),
|
|
GetName().c_str());
|
|
return FALSE;
|
|
}
|
|
else {
|
|
// check that we read the value of right type
|
|
wxASSERT_MSG( dwType == REG_DWORD,
|
|
_T("Type mismatch in wxRegKey::QueryValue().") );
|
|
|
|
return TRUE;
|
|
}
|
|
}
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
#endif //Win32
|
|
|
|
bool wxRegKey::QueryValue(const wxChar *szValue, wxString& strValue) const
|
|
{
|
|
if ( CONST_CAST Open() ) {
|
|
#ifdef __WIN32__
|
|
// first get the type and size of the data
|
|
DWORD dwType, dwSize;
|
|
m_dwLastError = RegQueryValueEx((HKEY) m_hKey, WXSTRINGCAST szValue, RESERVED,
|
|
&dwType, NULL, &dwSize);
|
|
if ( m_dwLastError == ERROR_SUCCESS ) {
|
|
RegString pBuf = (RegString)strValue.GetWriteBuf(dwSize);
|
|
m_dwLastError = RegQueryValueEx((HKEY) m_hKey, WXSTRINGCAST szValue, RESERVED,
|
|
&dwType, pBuf, &dwSize);
|
|
strValue.UngetWriteBuf();
|
|
if ( m_dwLastError == ERROR_SUCCESS ) {
|
|
// check that it was the right type
|
|
wxASSERT_MSG( dwType == REG_SZ,
|
|
_T("Type mismatch in wxRegKey::QueryValue().") );
|
|
|
|
return TRUE;
|
|
}
|
|
}
|
|
#else //WIN16
|
|
// named registry values don't exist in Win16
|
|
wxASSERT( IsEmpty(szValue) );
|
|
|
|
m_dwLastError = RegQueryValue((HKEY) m_hKey, 0, strValue.GetWriteBuf(256), &l);
|
|
strValue.UngetWriteBuf();
|
|
if ( m_dwLastError == ERROR_SUCCESS )
|
|
return TRUE;
|
|
#endif //WIN16/32
|
|
}
|
|
|
|
wxLogSysError(m_dwLastError, _("can't read value of '%s'"),
|
|
GetFullName(this, szValue));
|
|
return FALSE;
|
|
}
|
|
|
|
bool wxRegKey::SetValue(const wxChar *szValue, const wxString& strValue)
|
|
{
|
|
if ( CONST_CAST Open() ) {
|
|
#if defined( __WIN32__) && !defined(__TWIN32__)
|
|
m_dwLastError = RegSetValueEx((HKEY) m_hKey, szValue, (DWORD) RESERVED, REG_SZ,
|
|
(RegString)strValue.c_str(),
|
|
strValue.Len() + 1);
|
|
if ( m_dwLastError == ERROR_SUCCESS )
|
|
return TRUE;
|
|
#else //WIN16
|
|
// named registry values don't exist in Win16
|
|
wxASSERT( IsEmpty(szValue) );
|
|
|
|
m_dwLastError = RegSetValue((HKEY) m_hKey, NULL, REG_SZ, strValue, NULL);
|
|
if ( m_dwLastError == ERROR_SUCCESS )
|
|
return TRUE;
|
|
#endif //WIN16/32
|
|
}
|
|
|
|
wxLogSysError(m_dwLastError, _("can't set value of '%s'"),
|
|
GetFullName(this, szValue));
|
|
return FALSE;
|
|
}
|
|
|
|
wxRegKey::operator wxString() const
|
|
{
|
|
wxString str;
|
|
QueryValue(NULL, str);
|
|
return str;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// enumeration
|
|
// NB: all these functions require an index variable which allows to have
|
|
// several concurrently running indexations on the same key
|
|
// ----------------------------------------------------------------------------
|
|
|
|
bool wxRegKey::GetFirstValue(wxString& strValueName, long& lIndex)
|
|
{
|
|
if ( !Open() )
|
|
return FALSE;
|
|
|
|
lIndex = 0;
|
|
return GetNextValue(strValueName, lIndex);
|
|
}
|
|
|
|
bool wxRegKey::GetNextValue(wxString& strValueName, long& lIndex) const
|
|
{
|
|
wxASSERT( IsOpened() );
|
|
|
|
// are we already at the end of enumeration?
|
|
if ( lIndex == -1 )
|
|
return FALSE;
|
|
|
|
#if defined( __WIN32__) && !defined(__TWIN32__)
|
|
wxChar szValueName[1024]; // @@ use RegQueryInfoKey...
|
|
DWORD dwValueLen = WXSIZEOF(szValueName);
|
|
|
|
m_dwLastError = RegEnumValue((HKEY) m_hKey, lIndex++,
|
|
szValueName, &dwValueLen,
|
|
RESERVED,
|
|
NULL, // [out] type
|
|
NULL, // [out] buffer for value
|
|
NULL); // [i/o] it's length
|
|
|
|
if ( m_dwLastError != ERROR_SUCCESS ) {
|
|
if ( m_dwLastError == ERROR_NO_MORE_ITEMS ) {
|
|
m_dwLastError = ERROR_SUCCESS;
|
|
lIndex = -1;
|
|
}
|
|
else {
|
|
wxLogSysError(m_dwLastError, _("can't enumerate values of key '%s'"),
|
|
GetName().c_str());
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
strValueName = szValueName;
|
|
#else //WIN16
|
|
// only one unnamed value
|
|
wxASSERT( lIndex == 0 );
|
|
|
|
lIndex = -1;
|
|
strValueName.Empty();
|
|
#endif
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
bool wxRegKey::GetFirstKey(wxString& strKeyName, long& lIndex)
|
|
{
|
|
if ( !Open() )
|
|
return FALSE;
|
|
|
|
lIndex = 0;
|
|
return GetNextKey(strKeyName, lIndex);
|
|
}
|
|
|
|
bool wxRegKey::GetNextKey(wxString& strKeyName, long& lIndex) const
|
|
{
|
|
wxASSERT( IsOpened() );
|
|
|
|
// are we already at the end of enumeration?
|
|
if ( lIndex == -1 )
|
|
return FALSE;
|
|
|
|
wxChar szKeyName[_MAX_PATH + 1];
|
|
m_dwLastError = RegEnumKey((HKEY) m_hKey, lIndex++, szKeyName, WXSIZEOF(szKeyName));
|
|
|
|
if ( m_dwLastError != ERROR_SUCCESS ) {
|
|
if ( m_dwLastError == ERROR_NO_MORE_ITEMS ) {
|
|
m_dwLastError = ERROR_SUCCESS;
|
|
lIndex = -1;
|
|
}
|
|
else {
|
|
wxLogSysError(m_dwLastError, _("can't enumerate subkeys of key '%s'"),
|
|
GetName().c_str());
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
strKeyName = szKeyName;
|
|
return TRUE;
|
|
}
|
|
|
|
// returns TRUE if the value contains a number (else it's some string)
|
|
bool wxRegKey::IsNumericValue(const wxChar *szValue) const
|
|
{
|
|
ValueType type = GetValueType(szValue);
|
|
switch ( type ) {
|
|
case Type_Dword:
|
|
case Type_Dword_little_endian:
|
|
case Type_Dword_big_endian:
|
|
return TRUE;
|
|
|
|
default:
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
// ============================================================================
|
|
// implementation of global private functions
|
|
// ============================================================================
|
|
bool KeyExists(WXHKEY hRootKey, const wxChar *szKey)
|
|
{
|
|
HKEY hkeyDummy;
|
|
if ( RegOpenKey( (HKEY) hRootKey, szKey, &hkeyDummy) == ERROR_SUCCESS ) {
|
|
RegCloseKey(hkeyDummy);
|
|
return TRUE;
|
|
}
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
const wxChar *GetFullName(const wxRegKey *pKey, const wxChar *szValue)
|
|
{
|
|
static wxString s_str;
|
|
s_str = pKey->GetName();
|
|
if ( !wxIsEmpty(szValue) )
|
|
s_str << _T("\\") << szValue;
|
|
|
|
return s_str.c_str();
|
|
}
|
|
|
|
void RemoveTrailingSeparator(wxString& str)
|
|
{
|
|
if ( !str.IsEmpty() && str.Last() == REG_SEPARATOR )
|
|
str.Truncate(str.Len() - 1);
|
|
}
|
|
|
|
#endif
|
|
// __WIN16__
|
|
|