X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c085e333984dc079a001cd3f581aeb1f51a1f227..f23208caccf81b0b34c5c11b466c6bd64fdf0f9d:/src/msw/registry.cpp diff --git a/src/msw/registry.cpp b/src/msw/registry.cpp index 6269c4de4a..50da59b181 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 @@ -16,14 +16,6 @@ #pragma implementation "registry.h" #endif -// ============================================================================ -// declarations -// ============================================================================ - -// ---------------------------------------------------------------------------- -// headers -// ---------------------------------------------------------------------------- - // for compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -35,9 +27,10 @@ #include "wx/string.h" #include "wx/intl.h" #include "wx/log.h" - #include "wx/config.h" // for wxExpandEnvVars +#ifndef __WIN16__ + // Windows headers /* #define STRICT @@ -50,7 +43,7 @@ #include // for _MAX_PATH #ifndef _MAX_PATH - #define _MAX_PATH 512 + #define _MAX_PATH 512 #endif // our header @@ -69,28 +62,28 @@ 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? + { 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 @@ -114,11 +107,11 @@ aStdKeys[] = static inline void RemoveTrailingSeparator(wxString& str); // returns TRUE if given registry key exists -static bool KeyExists(WXHKEY 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 @@ -131,31 +124,31 @@ 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(size_t key) +// it would require casts in user code. +const wxChar *wxRegKey::GetStdKeyName(size_t key) { // return empty string if key is invalid - wxCHECK_MSG( key < nStdKeys, "", "invalid key in wxRegKey::GetStdKeyName" ); + wxCHECK_MSG( key < nStdKeys, wxT(""), wxT("invalid key in wxRegKey::GetStdKeyName") ); return aStdKeys[key].szName; } -const char *wxRegKey::GetStdKeyShortName(size_t key) +const wxChar *wxRegKey::GetStdKeyShortName(size_t key) { // return empty string if key is invalid - wxCHECK( 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; + 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; @@ -163,7 +156,7 @@ 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; } @@ -182,8 +175,8 @@ wxRegKey::StdKey wxRegKey::GetStdKeyFromHkey(WXHKEY hkey) 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; } @@ -202,7 +195,7 @@ wxRegKey::wxRegKey() wxRegKey::wxRegKey(const wxString& strKey) : m_strKey(strKey) { m_hRootKey = (WXHKEY) aStdKeys[ExtractKeyName(m_strKey)].hkey; - m_hKey = NULL; + m_hKey = (WXHKEY) NULL; m_dwLastError = 0; } @@ -211,7 +204,7 @@ wxRegKey::wxRegKey(StdKey keyParent, const wxString& strKey) : m_strKey(strKey) { RemoveTrailingSeparator(m_strKey); m_hRootKey = (WXHKEY) aStdKeys[keyParent].hkey; - m_hKey = NULL; + m_hKey = (WXHKEY) NULL; m_dwLastError = 0; } @@ -220,7 +213,7 @@ 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() && + if ( !m_strKey.IsEmpty() && (strKey.IsEmpty() || strKey[0] != REG_SEPARATOR) ) { m_strKey += REG_SEPARATOR; } @@ -229,7 +222,7 @@ wxRegKey::wxRegKey(const wxRegKey& keyParent, const wxString& strKey) RemoveTrailingSeparator(m_strKey); m_hRootKey = keyParent.m_hRootKey; - m_hKey = NULL; + m_hKey = (WXHKEY) NULL; m_dwLastError = 0; } @@ -301,7 +294,7 @@ bool wxRegKey::Exists() const wxString wxRegKey::GetName(bool bShortPrefix) const { StdKey key = GetStdKeyFromHkey((StdKey) m_hRootKey); - wxString str = bShortPrefix ? aStdKeys[key].szShortName + wxString str = bShortPrefix ? aStdKeys[key].szShortName : aStdKeys[key].szName; if ( !m_strKey.IsEmpty() ) str << "\\" << m_strKey; @@ -309,37 +302,44 @@ wxString wxRegKey::GetName(bool bShortPrefix) const return str; } -#ifdef __GNUWIN32__ -bool wxRegKey::GetKeyInfo(size_t* pnSubKeys, - size_t* pnMaxKeyLen, - size_t* pnValues, - size_t* pnMaxValueLen) const +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() +#ifdef __GNUWIN32_OLD__ + #define REG_PARAM (size_t *) #else -bool wxRegKey::GetKeyInfo(ulong *pnSubKeys, - ulong *pnMaxKeyLen, - ulong *pnValues, - ulong *pnMaxValueLen) const + #define REG_PARAM (LPDWORD) #endif -{ -#ifdef __WIN32__ + 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'"), + wxLogSysError(m_dwLastError, _("Can't get info about registry key '%s'"), GetName().c_str()); return FALSE; } @@ -365,7 +365,7 @@ bool wxRegKey::Open() 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; } @@ -390,7 +390,7 @@ bool wxRegKey::Create(bool bOkIfExists) 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; } @@ -407,7 +407,7 @@ bool wxRegKey::Close() if ( IsOpened() ) { m_dwLastError = RegCloseKey((HKEY) m_hKey); if ( m_dwLastError != ERROR_SUCCESS ) { - wxLogSysError(m_dwLastError, _("can't close registry key '%s'"), + wxLogSysError(m_dwLastError, _("Can't close registry key '%s'"), GetName().c_str()); m_hKey = 0; @@ -421,6 +421,188 @@ bool wxRegKey::Close() 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 char*) 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 // ---------------------------------------------------------------------------- @@ -434,6 +616,18 @@ bool wxRegKey::DeleteSelf() } } + // 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 != HKCR && + m_strKey.Find(REG_SEPARATOR) == wxNOT_FOUND) ) { + wxLogError(_("Registry key '%s' is needed for normal system operation,\n" + "deleting it will leave your system in unusable state:\n" + "operation 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; @@ -459,7 +653,7 @@ bool wxRegKey::DeleteSelf() m_dwLastError = RegDeleteKey((HKEY) m_hRootKey, m_strKey); if ( m_dwLastError != ERROR_SUCCESS ) { - wxLogSysError(m_dwLastError, _("can't delete key '%s'"), + wxLogSysError(m_dwLastError, _("Can't delete key '%s'"), GetName().c_str()); return FALSE; } @@ -467,7 +661,7 @@ bool wxRegKey::DeleteSelf() return TRUE; } -bool wxRegKey::DeleteKey(const char *szKey) +bool wxRegKey::DeleteKey(const wxChar *szKey) { if ( !Open() ) return FALSE; @@ -476,15 +670,15 @@ 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((HKEY) 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; } @@ -495,7 +689,7 @@ bool wxRegKey::DeleteValue(const char *szValue) // just set the (default and unique) value of the key to "" 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; } @@ -509,14 +703,14 @@ bool wxRegKey::DeleteValue(const char *szValue) // ---------------------------------------------------------------------------- // return TRUE if value exists -bool wxRegKey::HasValue(const char *szValue) const +bool wxRegKey::HasValue(const wxChar *szValue) const { // this function should be silent, so suppress possible messages from Open() wxLogNull nolog; - + #ifdef __WIN32__ if ( CONST_CAST Open() ) { - return RegQueryValueEx((HKEY) m_hKey, szValue, RESERVED, + return RegQueryValueEx((HKEY) m_hKey, WXSTRINGCAST szValue, RESERVED, NULL, NULL, NULL) == ERROR_SUCCESS; } else @@ -527,9 +721,24 @@ bool wxRegKey::HasValue(const char *szValue) const #endif // WIN16/32 } +// 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; @@ -537,25 +746,28 @@ bool wxRegKey::HasSubkeys() const } // returns TRUE if given subkey exists -bool wxRegKey::HasSubKey(const char *szKey) const +bool wxRegKey::HasSubKey(const wxChar *szKey) const { + // 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 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((HKEY) 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; } @@ -567,36 +779,41 @@ 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((HKEY) 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((HKEY) 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; } @@ -607,23 +824,35 @@ 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) 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, 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((HKEY) m_hKey, szValue, RESERVED, - &dwType, pBuf, &dwSize); - strValue.UngetWriteBuf(); + 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(); + } + 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; } @@ -639,17 +868,17 @@ bool wxRegKey::QueryValue(const char *szValue, wxString& strValue) const #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((HKEY) m_hKey, szValue, RESERVED, REG_SZ, - (RegString)strValue.c_str(), +#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; @@ -663,7 +892,7 @@ bool wxRegKey::SetValue(const char *szValue, const wxString& strValue) #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; } @@ -698,15 +927,14 @@ bool wxRegKey::GetNextValue(wxString& strValueName, long& lIndex) const if ( lIndex == -1 ) return FALSE; - #ifdef __WIN32__ - char szValueName[1024]; // @@ use RegQueryInfoKey... +#if defined( __WIN32__) && !defined(__TWIN32__) + wxChar szValueName[1024]; // @@ use RegQueryInfoKey... DWORD dwValueLen = WXSIZEOF(szValueName); - lIndex++; - m_dwLastError = RegEnumValue((HKEY) m_hKey, lIndex, + m_dwLastError = RegEnumValue((HKEY) m_hKey, lIndex++, szValueName, &dwValueLen, - RESERVED, - NULL, // [out] type + RESERVED, + NULL, // [out] type NULL, // [out] buffer for value NULL); // [i/o] it's length @@ -716,7 +944,7 @@ bool wxRegKey::GetNextValue(wxString& strValueName, long& lIndex) const lIndex = -1; } else { - wxLogSysError(m_dwLastError, _("can't enumerate values of key '%s'"), + wxLogSysError(m_dwLastError, _("Can't enumerate values of key '%s'"), GetName().c_str()); } @@ -752,7 +980,7 @@ bool wxRegKey::GetNextKey(wxString& strKeyName, long& lIndex) const if ( lIndex == -1 ) return FALSE; - char szKeyName[_MAX_PATH + 1]; + wxChar szKeyName[_MAX_PATH + 1]; m_dwLastError = RegEnumKey((HKEY) m_hKey, lIndex++, szKeyName, WXSIZEOF(szKeyName)); if ( m_dwLastError != ERROR_SUCCESS ) { @@ -761,7 +989,7 @@ 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()); } @@ -772,10 +1000,25 @@ 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 private functions // ============================================================================ -bool KeyExists(WXHKEY hRootKey, const char *szKey) +bool KeyExists(WXHKEY hRootKey, const wxChar *szKey) { HKEY hkeyDummy; if ( RegOpenKey( (HKEY) hRootKey, szKey, &hkeyDummy) == ERROR_SUCCESS ) { @@ -786,12 +1029,12 @@ bool KeyExists(WXHKEY 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(); } @@ -801,3 +1044,7 @@ void RemoveTrailingSeparator(wxString& str) if ( !str.IsEmpty() && str.Last() == REG_SEPARATOR ) str.Truncate(str.Len() - 1); } + +#endif + // __WIN16__ +