X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2bda0e173844e8e0f8acf4e8ad8b5c26e5c6fe5d..491b5be8305968871bc289453ed088a70c3de044:/src/msw/registry.cpp diff --git a/src/msw/registry.cpp b/src/msw/registry.cpp index 480206990e..34e7c891a5 100644 --- a/src/msw/registry.cpp +++ b/src/msw/registry.cpp @@ -2,7 +2,7 @@ // Name: msw/registry.cpp // Purpose: implementation of registry classes and functions // Author: Vadim Zeitlin -// Modified by: +// Modified by: // Created: 03.04.98 // RCS-ID: $Id$ // Copyright: (c) 1998 Vadim Zeitlin @@ -12,13 +12,9 @@ // - add high level functions (RegisterOleServer, ...) /////////////////////////////////////////////////////////////////////////////// -// ============================================================================ -// declarations -// ============================================================================ - -// ---------------------------------------------------------------------------- -// headers -// ---------------------------------------------------------------------------- +#ifdef __GNUG__ +#pragma implementation "registry.h" +#endif // for compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -32,16 +28,21 @@ #include "wx/intl.h" #include "wx/log.h" +#ifndef __WIN16__ + // Windows headers +/* #define STRICT #define WIN32_LEAN_AND_MEAN +*/ + #include // other std headers #include // for _MAX_PATH #ifndef _MAX_PATH -#define _MAX_PATH 256 + #define _MAX_PATH 512 #endif // our header @@ -60,49 +61,56 @@ typedef unsigned char *RegString; static struct { HKEY hkey; - const char *szName; - const char *szShortName; + const wxChar *szName; + const wxChar *szShortName; } -aStdKeys[] = -{ - { HKEY_CLASSES_ROOT, "HKEY_CLASSES_ROOT", "HKCR" }, +aStdKeys[] = +{ + { HKEY_CLASSES_ROOT, wxT("HKEY_CLASSES_ROOT"), wxT("HKCR") }, #ifdef __WIN32__ - { HKEY_CURRENT_USER, "HKEY_CURRENT_USER", "HKCU" }, - { HKEY_LOCAL_MACHINE, "HKEY_LOCAL_MACHINE", "HKLM" }, - { HKEY_USERS, "HKEY_USERS", "HKU" }, // short name? - { HKEY_PERFORMANCE_DATA, "HKEY_PERFORMANCE_DATA", "HKPD" }, + { HKEY_CURRENT_USER, wxT("HKEY_CURRENT_USER"), wxT("HKCU") }, + { HKEY_LOCAL_MACHINE, wxT("HKEY_LOCAL_MACHINE"), wxT("HKLM") }, + { HKEY_USERS, wxT("HKEY_USERS"), wxT("HKU") }, // short name? + { HKEY_PERFORMANCE_DATA, wxT("HKEY_PERFORMANCE_DATA"), wxT("HKPD") }, #if WINVER >= 0x0400 - { HKEY_CURRENT_CONFIG, "HKEY_CURRENT_CONFIG", "HKCC" }, + { HKEY_CURRENT_CONFIG, wxT("HKEY_CURRENT_CONFIG"), wxT("HKCC") }, #ifndef __GNUWIN32__ - { HKEY_DYN_DATA, "HKEY_DYN_DATA", "HKDD" }, // short name? -#endif //_GNUWIN32__ + { HKEY_DYN_DATA, wxT("HKEY_DYN_DATA"), wxT("HKDD") }, // short name? +#endif //GNUWIN32 #endif //WINVER >= 4.0 #endif //WIN32 }; // the registry name separator (perhaps one day MS will change it to '/' ;-) -#define REG_SEPARATOR '\\' +#define REG_SEPARATOR wxT('\\') + +// useful for Windows programmers: makes somewhat more clear all these zeroes +// being passed to Windows APIs +#define RESERVED (NULL) // ---------------------------------------------------------------------------- // macros // ---------------------------------------------------------------------------- -// @ const_cast<> is not yet supported by all compilers + +// const_cast<> is not yet supported by all compilers #define CONST_CAST ((wxRegKey *)this)-> -#if !USE_MUTABLE - #define m_dwLastError CONST_CAST m_dwLastError -#endif +// and neither is mutable which m_dwLastError should be +#define m_dwLastError CONST_CAST m_dwLastError // ---------------------------------------------------------------------------- // non member functions // ---------------------------------------------------------------------------- +// removes the trailing backslash from the string if it has one +static inline void RemoveTrailingSeparator(wxString& str); + // returns TRUE if given registry key exists -static bool KeyExists(HKEY hRootKey, const char *szKey); +static bool KeyExists(WXHKEY hRootKey, const wxChar *szKey); // combines value and key name (uses static buffer!) -static const char *GetFullName(const wxRegKey *pKey, - const char *szValue = NULL); +static const wxChar *GetFullName(const wxRegKey *pKey, + const wxChar *szValue = NULL); // ============================================================================ // implementation of wxRegKey class @@ -115,31 +123,31 @@ static const char *GetFullName(const wxRegKey *pKey, const size_t wxRegKey::nStdKeys = WXSIZEOF(aStdKeys); // @@ should take a `StdKey key', but as it's often going to be used in loops -// it would require casts in user code. -const char *wxRegKey::GetStdKeyName(uint key) +// it would require casts in user code. +const wxChar *wxRegKey::GetStdKeyName(size_t key) { // return empty string if key is invalid - wxCHECK_RET( key < nStdKeys, "" ); + wxCHECK_MSG( key < nStdKeys, wxT(""), wxT("invalid key in wxRegKey::GetStdKeyName") ); return aStdKeys[key].szName; } -const char *wxRegKey::GetStdKeyShortName(uint key) +const wxChar *wxRegKey::GetStdKeyShortName(size_t key) { // return empty string if key is invalid - wxCHECK_RET( key < nStdKeys, "" ); + wxCHECK( key < nStdKeys, wxT("") ); return aStdKeys[key].szShortName; } wxRegKey::StdKey wxRegKey::ExtractKeyName(wxString& strKey) { - wxString strRoot = strKey.Left(REG_SEPARATOR); + wxString strRoot = strKey.BeforeFirst(REG_SEPARATOR); - HKEY hRootKey; - uint ui; + HKEY hRootKey = 0; + size_t ui; for ( ui = 0; ui < nStdKeys; ui++ ) { - if ( strRoot.CmpNoCase(aStdKeys[ui].szName) == 0 || + if ( strRoot.CmpNoCase(aStdKeys[ui].szName) == 0 || strRoot.CmpNoCase(aStdKeys[ui].szShortName) == 0 ) { hRootKey = aStdKeys[ui].hkey; break; @@ -147,7 +155,7 @@ wxRegKey::StdKey wxRegKey::ExtractKeyName(wxString& strKey) } if ( ui == nStdKeys ) { - wxFAIL_MSG("invalid key prefix in wxRegKey::ExtractKeyName."); + wxFAIL_MSG(wxT("invalid key prefix in wxRegKey::ExtractKeyName.")); hRootKey = HKEY_CLASSES_ROOT; } @@ -160,14 +168,14 @@ wxRegKey::StdKey wxRegKey::ExtractKeyName(wxString& strKey) return (wxRegKey::StdKey)(int)hRootKey; } -wxRegKey::StdKey wxRegKey::GetStdKeyFromHkey(HKEY hkey) +wxRegKey::StdKey wxRegKey::GetStdKeyFromHkey(WXHKEY hkey) { - for ( uint ui = 0; ui < nStdKeys; ui++ ) { - if ( aStdKeys[ui].hkey == hkey ) + for ( size_t ui = 0; ui < nStdKeys; ui++ ) { + if ( (int) aStdKeys[ui].hkey == (int) hkey ) return (StdKey)ui; } - - wxFAIL_MSG("non root hkey passed to wxRegKey::GetStdKeyFromHkey."); + + wxFAIL_MSG(wxT("non root hkey passed to wxRegKey::GetStdKeyFromHkey.")); return HKCR; } @@ -178,27 +186,25 @@ wxRegKey::StdKey wxRegKey::GetStdKeyFromHkey(HKEY hkey) wxRegKey::wxRegKey() { - m_hKey = 0; - m_hRootKey = aStdKeys[HKCR].hkey; - m_dwLastError = 0; + m_hRootKey = (WXHKEY) aStdKeys[HKCR].hkey; + + Init(); } wxRegKey::wxRegKey(const wxString& strKey) : m_strKey(strKey) { - m_hRootKey = aStdKeys[ExtractKeyName(m_strKey)].hkey; - m_hKey = NULL; - m_dwLastError = 0; + m_hRootKey = (WXHKEY) aStdKeys[ExtractKeyName(m_strKey)].hkey; + + Init(); } // parent is a predefined (and preopened) key wxRegKey::wxRegKey(StdKey keyParent, const wxString& strKey) : m_strKey(strKey) { - if ( !m_strKey.IsEmpty() && m_strKey.Last() == REG_SEPARATOR ) - m_strKey.Truncate(m_strKey.Len() - 1); + RemoveTrailingSeparator(m_strKey); + m_hRootKey = (WXHKEY) aStdKeys[keyParent].hkey; - m_hRootKey = aStdKeys[keyParent].hkey; - m_hKey = NULL; - m_dwLastError = 0; + Init(); } // parent is a normal regkey @@ -206,16 +212,17 @@ wxRegKey::wxRegKey(const wxRegKey& keyParent, const wxString& strKey) : m_strKey(keyParent.m_strKey) { // combine our name with parent's to get the full name - if ( !m_strKey.IsEmpty() ) - m_strKey += REG_SEPARATOR; + if ( !m_strKey.IsEmpty() && + (strKey.IsEmpty() || strKey[0] != REG_SEPARATOR) ) { + m_strKey += REG_SEPARATOR; + } m_strKey += strKey; - if ( !m_strKey.IsEmpty() && m_strKey.Last() == REG_SEPARATOR ) - m_strKey.Truncate(m_strKey.Len() - 1); + RemoveTrailingSeparator(m_strKey); m_hRootKey = keyParent.m_hRootKey; - m_hKey = NULL; - m_dwLastError = 0; + + Init(); } // dtor closes the key releasing system resource @@ -224,6 +231,60 @@ wxRegKey::~wxRegKey() Close(); } +// ---------------------------------------------------------------------------- +// change the key name/hkey +// ---------------------------------------------------------------------------- + +// set the full key name +void wxRegKey::SetName(const wxString& strKey) +{ + Close(); + + m_strKey = strKey; + m_hRootKey = (WXHKEY) aStdKeys[ExtractKeyName(m_strKey)].hkey; +} + +// the name is relative to the parent key +void wxRegKey::SetName(StdKey keyParent, const wxString& strKey) +{ + Close(); + + m_strKey = strKey; + RemoveTrailingSeparator(m_strKey); + m_hRootKey = (WXHKEY) aStdKeys[keyParent].hkey; +} + +// the name is relative to the parent key +void wxRegKey::SetName(const wxRegKey& keyParent, const wxString& strKey) +{ + Close(); + + // combine our name with parent's to get the full name + + // NB: this method is called by wxRegConfig::SetPath() which is a performance + // critical function and so it preallocates space for our m_strKey to + // gain some speed - this is why we only use += here and not = which + // would just free the prealloc'd buffer and would have to realloc it the + // next line! + m_strKey.clear(); + m_strKey += keyParent.m_strKey; + if ( !strKey.IsEmpty() && strKey[0] != REG_SEPARATOR ) + m_strKey += REG_SEPARATOR; + m_strKey += strKey; + + RemoveTrailingSeparator(m_strKey); + + m_hRootKey = keyParent.m_hRootKey; +} + +// hKey should be opened and will be closed in wxRegKey dtor +void wxRegKey::SetHkey(WXHKEY hKey) +{ + Close(); + + m_hKey = hKey; +} + // ---------------------------------------------------------------------------- // info about the key // ---------------------------------------------------------------------------- @@ -238,8 +299,8 @@ bool wxRegKey::Exists() const // returns the full name of the key (prefix is abbreviated if bShortPrefix) wxString wxRegKey::GetName(bool bShortPrefix) const { - StdKey key = GetStdKeyFromHkey(m_hRootKey); - wxString str = bShortPrefix ? aStdKeys[key].szShortName + StdKey key = GetStdKeyFromHkey((StdKey) m_hRootKey); + wxString str = bShortPrefix ? aStdKeys[key].szShortName : aStdKeys[key].szName; if ( !m_strKey.IsEmpty() ) str << "\\" << m_strKey; @@ -247,6 +308,59 @@ wxString wxRegKey::GetName(bool bShortPrefix) const return str; } +bool wxRegKey::GetKeyInfo(size_t *pnSubKeys, + size_t *pnMaxKeyLen, + size_t *pnValues, + size_t *pnMaxValueLen) const +{ +#if defined(__WIN32__) && !defined(__TWIN32__) + + // old gcc headers incorrectly prototype RegQueryInfoKey() +#if defined(__GNUWIN32_OLD__) && !defined(__CYGWIN10__) + #define REG_PARAM (size_t *) +#else + #define REG_PARAM (LPDWORD) +#endif + + // it might be unexpected to some that this function doesn't open the key + wxASSERT_MSG( IsOpened(), _T("key should be opened in GetKeyInfo") ); + + m_dwLastError = ::RegQueryInfoKey + ( + (HKEY) m_hKey, + NULL, // class name + NULL, // (ptr to) size of class name buffer + RESERVED, + REG_PARAM + pnSubKeys, // [out] number of subkeys + REG_PARAM + pnMaxKeyLen, // [out] max length of a subkey name + NULL, // longest subkey class name + REG_PARAM + pnValues, // [out] number of values + REG_PARAM + pnMaxValueLen, // [out] max length of a value name + NULL, // longest value data + NULL, // security descriptor + NULL // time of last modification + ); + +#undef REG_PARAM + + if ( m_dwLastError != ERROR_SUCCESS ) { + wxLogSysError(m_dwLastError, _("Can't get info about registry key '%s'"), + GetName().c_str()); + return FALSE; + } + + return TRUE; +#else // Win16 + wxFAIL_MSG("GetKeyInfo() not implemented"); + + return FALSE; +#endif +} + // ---------------------------------------------------------------------------- // operations // ---------------------------------------------------------------------------- @@ -257,14 +371,18 @@ bool wxRegKey::Open() if ( IsOpened() ) return TRUE; - m_dwLastError = RegOpenKey(m_hRootKey, m_strKey, &m_hKey); + HKEY tmpKey; + m_dwLastError = RegOpenKey((HKEY) m_hRootKey, m_strKey, &tmpKey); if ( m_dwLastError != ERROR_SUCCESS ) { - wxLogSysError(m_dwLastError, "can't open registry key '%s'", + wxLogSysError(m_dwLastError, _("Can't open registry key '%s'"), GetName().c_str()); return FALSE; } else + { + m_hKey = (WXHKEY) tmpKey; return TRUE; + } } // creates key, failing if it exists and !bOkIfExists @@ -278,44 +396,277 @@ bool wxRegKey::Create(bool bOkIfExists) if ( IsOpened() ) return TRUE; - m_dwLastError = RegCreateKey(m_hRootKey, m_strKey, &m_hKey); + HKEY tmpKey; + m_dwLastError = RegCreateKey((HKEY) m_hRootKey, m_strKey, &tmpKey); if ( m_dwLastError != ERROR_SUCCESS ) { - wxLogSysError(m_dwLastError, "can't create registry key '%s'", + wxLogSysError(m_dwLastError, _("Can't create registry key '%s'"), GetName().c_str()); return FALSE; } else + { + m_hKey = (WXHKEY) tmpKey; return TRUE; + } +} + +// close the key, it's not an error to call it when not opened +bool wxRegKey::Close() +{ + if ( IsOpened() ) { + m_dwLastError = RegCloseKey((HKEY) m_hKey); + m_hKey = 0; + + if ( m_dwLastError != ERROR_SUCCESS ) { + wxLogSysError(m_dwLastError, _("Can't close registry key '%s'"), + GetName().c_str()); + + return FALSE; + } + } + + return TRUE; +} + +bool wxRegKey::RenameValue(const wxChar *szValueOld, const wxChar *szValueNew) +{ + bool ok = TRUE; + if ( HasValue(szValueNew) ) { + wxLogError(_("Registry value '%s' already exists."), szValueNew); + + ok = FALSE; + } + + if ( !ok || + !CopyValue(szValueOld, *this, szValueNew) || + !DeleteValue(szValueOld) ) { + wxLogError(_("Failed to rename registry value '%s' to '%s'."), + szValueOld, szValueNew); + + return FALSE; + } + + return TRUE; +} + +bool wxRegKey::CopyValue(const wxChar *szValue, + wxRegKey& keyDst, + const wxChar *szValueNew) +{ + if ( !szValueNew ) { + // by default, use the same name + szValueNew = szValue; + } + + switch ( GetValueType(szValue) ) { + case Type_String: + { + wxString strVal; + return QueryValue(szValue, strVal) && + keyDst.SetValue(szValueNew, strVal); + } + + case Type_Dword: + /* case Type_Dword_little_endian: == Type_Dword */ + { + long dwVal; + return QueryValue(szValue, &dwVal) && + keyDst.SetValue(szValueNew, dwVal); + } + + // these types are unsupported because I am not sure about how + // exactly they should be copied and because they shouldn't + // occur among the application keys (supposedly created with + // this class) +#ifdef __WIN32__ + case Type_None: + case Type_Expand_String: + case Type_Binary: + case Type_Dword_big_endian: + case Type_Link: + case Type_Multi_String: + case Type_Resource_list: + case Type_Full_resource_descriptor: + case Type_Resource_requirements_list: +#endif // Win32 + default: + wxLogError(_("Can't copy values of unsupported type %d."), + GetValueType(szValue)); + return FALSE; + } +} + +bool wxRegKey::Rename(const wxChar *szNewName) +{ + wxCHECK_MSG( !!m_strKey, FALSE, _T("registry hives can't be renamed") ); + + if ( !Exists() ) { + wxLogError(_("Registry key '%s' does not exist, cannot rename it."), + GetFullName(this)); + + return FALSE; + } + + // do we stay in the same hive? + bool inSameHive = !wxStrchr(szNewName, REG_SEPARATOR); + + // construct the full new name of the key + wxRegKey keyDst; + + if ( inSameHive ) { + // rename the key to the new name under the same parent + wxString strKey = m_strKey.BeforeLast(REG_SEPARATOR); + if ( !!strKey ) { + // don't add '\\' in the start if strFullNewName is empty + strKey += REG_SEPARATOR; + } + + strKey += szNewName; + + keyDst.SetName(GetStdKeyFromHkey(m_hRootKey), strKey); + } + else { + // this is the full name already + keyDst.SetName(szNewName); + } + + bool ok = keyDst.Create(FALSE /* fail if alredy exists */); + if ( !ok ) { + wxLogError(_("Registry key '%s' already exists."), + GetFullName(&keyDst)); + } + else { + ok = Copy(keyDst) && DeleteSelf(); + } + + if ( !ok ) { + wxLogError(_("Failed to rename the registry key '%s' to '%s'."), + GetFullName(this), GetFullName(&keyDst)); + } + else { + m_hRootKey = keyDst.m_hRootKey; + m_strKey = keyDst.m_strKey; + } + + return ok; +} + +bool wxRegKey::Copy(const wxChar *szNewName) +{ + // create the new key first + wxRegKey keyDst(szNewName); + bool ok = keyDst.Create(FALSE /* fail if alredy exists */); + if ( ok ) { + ok = Copy(keyDst); + + // we created the dest key but copying to it failed - delete it + if ( !ok ) { + (void)keyDst.DeleteSelf(); + } + } + + return ok; +} + +bool wxRegKey::Copy(wxRegKey& keyDst) +{ + bool ok = TRUE; + + // copy all sub keys to the new location + wxString strKey; + long lIndex; + bool bCont = GetFirstKey(strKey, lIndex); + while ( ok && bCont ) { + wxRegKey key(*this, strKey); + wxString keyName; + keyName << GetFullName(&keyDst) << REG_SEPARATOR << strKey; + ok = key.Copy((const wxChar*) keyName); + + if ( ok ) + bCont = GetNextKey(strKey, lIndex); + } + + // copy all values + wxString strVal; + bCont = GetFirstValue(strVal, lIndex); + while ( ok && bCont ) { + ok = CopyValue(strVal, keyDst); + + if ( !ok ) { + wxLogSysError(m_dwLastError, + _("Failed to copy registry value '%s'"), + strVal.c_str()); + } + else { + bCont = GetNextValue(strVal, lIndex); + } + } + + if ( !ok ) { + wxLogError(_("Failed to copy the contents of registry key '%s' to '%s'."), GetFullName(this), GetFullName(&keyDst)); + } + + return ok; } +// ---------------------------------------------------------------------------- +// delete keys/values +// ---------------------------------------------------------------------------- bool wxRegKey::DeleteSelf() { - if ( !Open() ) - return FALSE; + { + wxLogNull nolog; + if ( !Open() ) { + // it already doesn't exist - ok! + return TRUE; + } + } + + // prevent a buggy program from erasing one of the root registry keys or an + // immediate subkey (i.e. one which doesn't have '\\' inside) of any other + // key except HKCR (HKCR has some "deleteable" subkeys) + if ( m_strKey.IsEmpty() || + ((m_hRootKey != (WXHKEY) aStdKeys[HKCR].hkey) && + (m_strKey.Find(REG_SEPARATOR) == wxNOT_FOUND)) ) { + wxLogError(_("Registry key '%s' is needed for normal system operation,\ndeleting it will leave your system in unusable state:\noperation aborted."), GetFullName(this)); + + return FALSE; + } + + // we can't delete keys while enumerating because it confuses GetNextKey, so + // we first save the key names and then delete them all + wxArrayString astrSubkeys; wxString strKey; long lIndex; bool bCont = GetFirstKey(strKey, lIndex); while ( bCont ) { - wxRegKey key(*this, strKey); - if ( !key.DeleteSelf() ) - return FALSE; + astrSubkeys.Add(strKey); bCont = GetNextKey(strKey, lIndex); } + size_t nKeyCount = astrSubkeys.Count(); + for ( size_t nKey = 0; nKey < nKeyCount; nKey++ ) { + wxRegKey key(*this, astrSubkeys[nKey]); + if ( !key.DeleteSelf() ) + return FALSE; + } + + // now delete this key itself Close(); - m_dwLastError = RegDeleteKey(m_hRootKey, m_strKey); + m_dwLastError = RegDeleteKey((HKEY) m_hRootKey, m_strKey); if ( m_dwLastError != ERROR_SUCCESS ) { - wxLogSysError(m_dwLastError, "can't delete key '%s'", GetName().c_str()); + wxLogSysError(m_dwLastError, _("Can't delete key '%s'"), + GetName().c_str()); return FALSE; } return TRUE; } -bool wxRegKey::DeleteKey(const char *szKey) +bool wxRegKey::DeleteKey(const wxChar *szKey) { if ( !Open() ) return FALSE; @@ -324,15 +675,15 @@ bool wxRegKey::DeleteKey(const char *szKey) return key.DeleteSelf(); } -bool wxRegKey::DeleteValue(const char *szValue) +bool wxRegKey::DeleteValue(const wxChar *szValue) { if ( !Open() ) return FALSE; - #ifdef __WIN32__ - m_dwLastError = RegDeleteValue(m_hKey, szValue); +#if defined(__WIN32__) && !defined(__TWIN32__) + m_dwLastError = RegDeleteValue((HKEY) m_hKey, WXSTRINGCAST szValue); if ( m_dwLastError != ERROR_SUCCESS ) { - wxLogSysError(m_dwLastError, "can't delete value '%s' from key '%s'", + wxLogSysError(m_dwLastError, _("Can't delete value '%s' from key '%s'"), szValue, GetName().c_str()); return FALSE; } @@ -341,9 +692,9 @@ bool wxRegKey::DeleteValue(const char *szValue) wxASSERT( IsEmpty(szValue) ); // just set the (default and unique) value of the key to "" - m_dwLastError = RegSetValue(m_hKey, NULL, REG_SZ, "", RESERVED); + m_dwLastError = RegSetValue((HKEY) m_hKey, NULL, REG_SZ, "", RESERVED); if ( m_dwLastError != ERROR_SUCCESS ) { - wxLogSysError(m_dwLastError, "can't delete value of key '%s'", + wxLogSysError(m_dwLastError, _("Can't delete value of key '%s'"), GetName().c_str()); return FALSE; } @@ -352,33 +703,49 @@ bool wxRegKey::DeleteValue(const char *szValue) return TRUE; } -// close the key, it's not an error to call it when not opened -bool wxRegKey::Close() -{ - if ( IsOpened() ) { - m_dwLastError = RegCloseKey(m_hKey); - if ( m_dwLastError != ERROR_SUCCESS ) { - wxLogSysError(m_dwLastError, "can't close registry key '%s'", - GetName().c_str()); +// ---------------------------------------------------------------------------- +// access to values and subkeys +// ---------------------------------------------------------------------------- - m_hKey = 0; - return FALSE; - } - else { - m_hKey = 0; - } - } +// return TRUE if value exists +bool wxRegKey::HasValue(const wxChar *szValue) const +{ + // this function should be silent, so suppress possible messages from Open() + wxLogNull nolog; - return TRUE; + #ifdef __WIN32__ + if ( !CONST_CAST Open() ) + return FALSE; + + LONG dwRet = ::RegQueryValueEx((HKEY) m_hKey, + WXSTRINGCAST szValue, + RESERVED, + NULL, NULL, NULL); + return dwRet == ERROR_SUCCESS; + #else // WIN16 + // only unnamed value exists + return IsEmpty(szValue); + #endif // WIN16/32 } -// ---------------------------------------------------------------------------- -// access to values and subkeys -// ---------------------------------------------------------------------------- +// returns TRUE if this key has any values +bool wxRegKey::HasValues() const +{ + // suppress possible messages from GetFirstValue() + 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; @@ -386,25 +753,28 @@ bool wxRegKey::HasSubkeys() const } // returns TRUE if given subkey exists -bool wxRegKey::HasSubKey(const char *szKey) const +bool wxRegKey::HasSubKey(const wxChar *szKey) const { - if ( CONST_CAST Open() ) - return KeyExists(m_hKey, szKey); - else + // this function should be silent, so suppress possible messages from Open() + wxLogNull nolog; + + if ( !CONST_CAST Open() ) return FALSE; + + return KeyExists(m_hKey, szKey); } -wxRegKey::ValueType wxRegKey::GetValueType(const char *szValue) +wxRegKey::ValueType wxRegKey::GetValueType(const wxChar *szValue) const { #ifdef __WIN32__ - if ( !Open() ) + if ( ! CONST_CAST Open() ) return Type_None; DWORD dwType; - m_dwLastError = RegQueryValueEx(m_hKey, szValue, RESERVED, + 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'", + wxLogSysError(m_dwLastError, _("Can't read value of key '%s'"), GetName().c_str()); return Type_None; } @@ -416,36 +786,41 @@ wxRegKey::ValueType wxRegKey::GetValueType(const char *szValue) } #ifdef __WIN32__ -bool wxRegKey::SetValue(const char *szValue, long lValue) +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(m_hKey, szValue, RESERVED, REG_DWORD, + 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'", + wxLogSysError(m_dwLastError, _("Can't set value of '%s'"), GetFullName(this, szValue)); return FALSE; +#endif } -bool wxRegKey::QueryValue(const char *szValue, long *plValue) const +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(m_hKey, szValue, RESERVED, + 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'", + 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, - "Type mismatch in wxRegKey::QueryValue()." ); + wxASSERT_MSG( IsNumericValue(szValue), + wxT("Type mismatch in wxRegKey::QueryValue().") ); return TRUE; } @@ -456,22 +831,61 @@ bool wxRegKey::QueryValue(const char *szValue, long *plValue) const #endif //Win32 -bool wxRegKey::QueryValue(const char *szValue, wxString& strValue) const +bool wxRegKey::QueryValue(const wxChar *szValue, + wxString& strValue, + bool raw) const { if ( CONST_CAST Open() ) { #ifdef __WIN32__ // first get the type and size of the data DWORD dwType, dwSize; - m_dwLastError = RegQueryValueEx(m_hKey, szValue, RESERVED, + 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(m_hKey, szValue, RESERVED, - &dwType, pBuf, &dwSize); + if ( !dwSize ) { + // must treat this case specially as GetWriteBuf() doesn't like + // being called with 0 size + strValue.Empty(); + } + else { + RegString pBuf = (RegString)strValue.GetWriteBuf(dwSize); + m_dwLastError = RegQueryValueEx((HKEY) m_hKey, + WXSTRINGCAST szValue, + RESERVED, + &dwType, + pBuf, + &dwSize); + strValue.UngetWriteBuf(); + + // expand the var expansions in the string unless disabled + if ( (dwType == REG_EXPAND_SZ) && !raw ) + { + DWORD dwExpSize = ::ExpandEnvironmentStrings(strValue, NULL, 0); + bool ok = dwExpSize != 0; + if ( ok ) + { + wxString strExpValue; + ok = ::ExpandEnvironmentStrings + ( + strValue, + strExpValue.GetWriteBuf(dwExpSize), + dwExpSize + ) != 0; + strExpValue.UngetWriteBuf(); + strValue = strExpValue; + } + + if ( !ok ) + { + wxLogLastError(_T("ExpandEnvironmentStrings")); + } + } + } + if ( m_dwLastError == ERROR_SUCCESS ) { // check that it was the right type - wxASSERT_MSG( dwType == REG_SZ, - "Type mismatch in wxRegKey::QueryValue()." ); + wxASSERT_MSG( !IsNumericValue(szValue), + wxT("Type mismatch in wxRegKey::QueryValue().") ); return TRUE; } @@ -480,37 +894,38 @@ bool wxRegKey::QueryValue(const char *szValue, wxString& strValue) const // named registry values don't exist in Win16 wxASSERT( IsEmpty(szValue) ); - m_dwLastError = RegQueryValue(m_hKey, 0, strValue.GetWriteBuf(256), &l); + 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'", + wxLogSysError(m_dwLastError, _("Can't read value of '%s'"), GetFullName(this, szValue)); return FALSE; } -bool wxRegKey::SetValue(const char *szValue, const wxString& strValue) +bool wxRegKey::SetValue(const wxChar *szValue, const wxString& strValue) { if ( CONST_CAST Open() ) { - #ifdef __WIN32__ - m_dwLastError = RegSetValueEx(m_hKey, szValue, RESERVED, REG_SZ, - (RegString)strValue.c_str(), - strValue.Len() + 1); +#if defined( __WIN32__) && !defined(__TWIN32__) + m_dwLastError = RegSetValueEx((HKEY) m_hKey, szValue, (DWORD) RESERVED, REG_SZ, + (RegString)strValue.c_str(), + (strValue.Len() + 1)*sizeof(wxChar)); if ( m_dwLastError == ERROR_SUCCESS ) return TRUE; #else //WIN16 // named registry values don't exist in Win16 wxASSERT( IsEmpty(szValue) ); - m_dwLastError = RegSetValue(m_hKey, NULL, REG_SZ, strValue, NULL); + 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'", + wxLogSysError(m_dwLastError, _("Can't set value of '%s'"), GetFullName(this, szValue)); return FALSE; } @@ -528,105 +943,78 @@ wxRegKey::operator wxString() const // several concurrently running indexations on the same key // ---------------------------------------------------------------------------- -#ifdef __WIN32__ bool wxRegKey::GetFirstValue(wxString& strValueName, long& lIndex) { if ( !Open() ) return FALSE; - char szValueName[1024]; // @@ use RegQueryInfoKey... - DWORD dwValueLen = WXSIZEOF(szValueName); - lIndex = 0; - m_dwLastError = RegEnumValue(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 ) - lIndex = -1; - else { - wxLogSysError(m_dwLastError, "can't enumerate values of key '%s'", - GetName().c_str()); - } - - return FALSE; - } - - strValueName = szValueName; - return TRUE; + return GetNextValue(strValueName, lIndex); } bool wxRegKey::GetNextValue(wxString& strValueName, long& lIndex) const { wxASSERT( IsOpened() ); - wxASSERT( lIndex != -1 ); - char szValueName[1024]; // @@ use RegQueryInfoKey... - DWORD dwValueLen = WXSIZEOF(szValueName); + // 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); - lIndex++; - m_dwLastError = RegEnumValue(m_hKey, lIndex, - szValueName, &dwValueLen, - RESERVED, - NULL, // buffer for type - NULL, NULL); // buffer for value and length + 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()); + 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; } - return FALSE; - } + strValueName = szValueName; + #else //WIN16 + // only one unnamed value + wxASSERT( lIndex == 0 ); + + lIndex = -1; + strValueName.Empty(); + #endif - strValueName = szValueName; return TRUE; } -#endif //Win32 bool wxRegKey::GetFirstKey(wxString& strKeyName, long& lIndex) { if ( !Open() ) return FALSE; - char szKeyName[_MAX_PATH + 1]; lIndex = 0; - m_dwLastError = RegEnumKey(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; + return GetNextKey(strKeyName, lIndex); } bool wxRegKey::GetNextKey(wxString& strKeyName, long& lIndex) const { wxASSERT( IsOpened() ); - wxASSERT( lIndex != -1 ); - char szKeyName[_MAX_PATH + 1]; - lIndex++; - m_dwLastError = RegEnumKey(m_hKey, lIndex, szKeyName, WXSIZEOF(szKeyName)); + // 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 ) { @@ -634,7 +1022,7 @@ bool wxRegKey::GetNextKey(wxString& strKeyName, long& lIndex) const lIndex = -1; } else { - wxLogSysError(m_dwLastError, "can't enumerate subkeys of key '%s'", + wxLogSysError(m_dwLastError, _("Can't enumerate subkeys of key '%s'"), GetName().c_str()); } @@ -645,13 +1033,33 @@ bool wxRegKey::GetNextKey(wxString& strKeyName, long& lIndex) const 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: == Type_Dword */ + case Type_Dword_big_endian: + return TRUE; + + default: + return FALSE; + } + } + // ============================================================================ -// implementation of global functions +// implementation of global private functions // ============================================================================ -bool KeyExists(HKEY hRootKey, const char *szKey) + +bool KeyExists(WXHKEY hRootKey, const wxChar *szKey) { + // don't close this key itself for the case of empty szKey! + if ( wxIsEmpty(szKey) ) + return TRUE; + HKEY hkeyDummy; - if ( RegOpenKey(hRootKey, szKey, &hkeyDummy) == ERROR_SUCCESS ) { + if ( RegOpenKey( (HKEY) hRootKey, szKey, &hkeyDummy) == ERROR_SUCCESS ) { RegCloseKey(hkeyDummy); return TRUE; } @@ -659,12 +1067,22 @@ bool KeyExists(HKEY hRootKey, const char *szKey) return FALSE; } -const char *GetFullName(const wxRegKey *pKey, const char *szValue) +const wxChar *GetFullName(const wxRegKey *pKey, const wxChar *szValue) { static wxString s_str; s_str = pKey->GetName(); - if ( !IsEmpty(szValue) ) - s_str << "\\" << szValue; + if ( !wxIsEmpty(szValue) ) + s_str << wxT("\\") << szValue; return s_str.c_str(); -} \ No newline at end of file +} + +void RemoveTrailingSeparator(wxString& str) +{ + if ( !str.IsEmpty() && str.Last() == REG_SEPARATOR ) + str.Truncate(str.Len() - 1); +} + +#endif + // __WIN16__ +