added some wxMSW stuff
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Karsten Ballüder
670
src/msw/registry.cpp
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670
src/msw/registry.cpp
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@@ -0,0 +1,670 @@
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///////////////////////////////////////////////////////////////////////////////
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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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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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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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// Windows headers
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#define STRICT
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#define WIN32_LEAN_AND_MEAN
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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 256
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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 char *szName;
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const char *szShortName;
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}
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aStdKeys[] =
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{
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{ HKEY_CLASSES_ROOT, "HKEY_CLASSES_ROOT", "HKCR" },
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#ifdef __WIN32__
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{ HKEY_CURRENT_USER, "HKEY_CURRENT_USER", "HKCU" },
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{ HKEY_LOCAL_MACHINE, "HKEY_LOCAL_MACHINE", "HKLM" },
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{ HKEY_USERS, "HKEY_USERS", "HKU" }, // short name?
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{ HKEY_PERFORMANCE_DATA, "HKEY_PERFORMANCE_DATA", "HKPD" },
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#if WINVER >= 0x0400
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{ HKEY_CURRENT_CONFIG, "HKEY_CURRENT_CONFIG", "HKCC" },
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#ifndef __GNUWIN32__
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{ HKEY_DYN_DATA, "HKEY_DYN_DATA", "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 '\\'
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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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// returns TRUE if given registry key exists
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static bool KeyExists(HKEY hRootKey, const char *szKey);
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// combines value and key name (uses static buffer!)
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static const char *GetFullName(const wxRegKey *pKey,
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const char *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 char *wxRegKey::GetStdKeyName(uint key)
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{
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// return empty string if key is invalid
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wxCHECK_RET( key < nStdKeys, "" );
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return aStdKeys[key].szName;
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}
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const char *wxRegKey::GetStdKeyShortName(uint key)
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{
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// return empty string if key is invalid
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wxCHECK_RET( key < nStdKeys, "" );
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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;
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uint 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("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(HKEY hkey)
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{
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for ( uint ui = 0; ui < nStdKeys; ui++ ) {
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if ( aStdKeys[ui].hkey == hkey )
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return (StdKey)ui;
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}
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wxFAIL_MSG("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 = 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 = aStdKeys[ExtractKeyName(m_strKey)].hkey;
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m_hKey = 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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if ( !m_strKey.IsEmpty() && m_strKey.Last() == REG_SEPARATOR )
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m_strKey.Truncate(m_strKey.Len() - 1);
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m_hRootKey = aStdKeys[keyParent].hkey;
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m_hKey = 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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m_strKey += REG_SEPARATOR;
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m_strKey += strKey;
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if ( !m_strKey.IsEmpty() && m_strKey.Last() == REG_SEPARATOR )
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m_strKey.Truncate(m_strKey.Len() - 1);
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m_hRootKey = keyParent.m_hRootKey;
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m_hKey = 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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// 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(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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// ----------------------------------------------------------------------------
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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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m_dwLastError = RegOpenKey(m_hRootKey, m_strKey, &m_hKey);
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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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return TRUE;
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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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m_dwLastError = RegCreateKey(m_hRootKey, m_strKey, &m_hKey);
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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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return TRUE;
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}
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bool wxRegKey::DeleteSelf()
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{
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if ( !Open() )
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return FALSE;
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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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wxRegKey key(*this, strKey);
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if ( !key.DeleteSelf() )
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return FALSE;
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bCont = GetNextKey(strKey, lIndex);
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}
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Close();
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m_dwLastError = RegDeleteKey(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'", 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 char *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 char *szValue)
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{
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if ( !Open() )
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return FALSE;
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#ifdef __WIN32__
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m_dwLastError = RegDeleteValue(m_hKey, 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(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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// 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(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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// access to values and subkeys
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// ----------------------------------------------------------------------------
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// returns TRUE if this key has any subkeys
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bool wxRegKey::HasSubkeys() const
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{
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// just call GetFirstKey with dummy parameters
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wxString str;
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long l;
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return CONST_CAST GetFirstKey(str, l);
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}
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// returns TRUE if given subkey exists
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bool wxRegKey::HasSubKey(const char *szKey) const
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{
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if ( CONST_CAST Open() )
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return KeyExists(m_hKey, szKey);
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else
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return FALSE;
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}
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wxRegKey::ValueType wxRegKey::GetValueType(const char *szValue)
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{
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#ifdef __WIN32__
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if ( !Open() )
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return Type_None;
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DWORD dwType;
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m_dwLastError = RegQueryValueEx(m_hKey, szValue, RESERVED,
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&dwType, NULL, NULL);
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if ( m_dwLastError != ERROR_SUCCESS ) {
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wxLogSysError(m_dwLastError, "can't read value of key '%s'",
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GetName().c_str());
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return Type_None;
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}
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return (ValueType)dwType;
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#else //WIN16
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return IsEmpty(szValue) ? Type_String : Type_None;
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#endif //WIN16/32
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}
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#ifdef __WIN32__
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bool wxRegKey::SetValue(const char *szValue, long lValue)
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{
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if ( CONST_CAST Open() ) {
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m_dwLastError = RegSetValueEx(m_hKey, szValue, RESERVED, REG_DWORD,
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(RegString)&lValue, sizeof(lValue));
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if ( m_dwLastError == ERROR_SUCCESS )
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return TRUE;
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}
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wxLogSysError(m_dwLastError, "can't set value of '%s'",
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GetFullName(this, szValue));
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return FALSE;
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}
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bool wxRegKey::QueryValue(const char *szValue, long *plValue) const
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{
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if ( CONST_CAST Open() ) {
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DWORD dwType, dwSize = sizeof(DWORD);
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RegString pBuf = (RegString)plValue;
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m_dwLastError = RegQueryValueEx(m_hKey, szValue, RESERVED,
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&dwType, pBuf, &dwSize);
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if ( m_dwLastError != ERROR_SUCCESS ) {
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wxLogSysError(m_dwLastError, "can't read 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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else {
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// check that we read the value of right type
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wxASSERT_MSG( dwType == REG_DWORD,
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"Type mismatch in wxRegKey::QueryValue()." );
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return TRUE;
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}
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}
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else
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return FALSE;
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}
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#endif //Win32
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bool wxRegKey::QueryValue(const char *szValue, wxString& strValue) const
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{
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if ( CONST_CAST Open() ) {
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#ifdef __WIN32__
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// first get the type and size of the data
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DWORD dwType, dwSize;
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m_dwLastError = RegQueryValueEx(m_hKey, szValue, RESERVED,
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&dwType, NULL, &dwSize);
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if ( m_dwLastError == ERROR_SUCCESS ) {
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RegString pBuf = (RegString)strValue.GetWriteBuf(dwSize);
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m_dwLastError = RegQueryValueEx(m_hKey, szValue, RESERVED,
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&dwType, pBuf, &dwSize);
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if ( m_dwLastError == ERROR_SUCCESS ) {
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// check that it was the right type
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wxASSERT_MSG( dwType == REG_SZ,
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"Type mismatch in wxRegKey::QueryValue()." );
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return TRUE;
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}
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}
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#else //WIN16
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// named registry values don't exist in Win16
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wxASSERT( IsEmpty(szValue) );
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m_dwLastError = RegQueryValue(m_hKey, 0, strValue.GetWriteBuf(256), &l);
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if ( m_dwLastError == ERROR_SUCCESS )
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return TRUE;
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#endif //WIN16/32
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}
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wxLogSysError(m_dwLastError, "can't read value of '%s'",
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GetFullName(this, szValue));
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return FALSE;
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}
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||||
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bool wxRegKey::SetValue(const char *szValue, const wxString& strValue)
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||||
{
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||||
if ( CONST_CAST Open() ) {
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#ifdef __WIN32__
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||||
m_dwLastError = RegSetValueEx(m_hKey, szValue, RESERVED, REG_SZ,
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||||
(RegString)strValue.c_str(),
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||||
strValue.Len() + 1);
|
||||
if ( m_dwLastError == ERROR_SUCCESS )
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||||
return TRUE;
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||||
#else //WIN16
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||||
// named registry values don't exist in Win16
|
||||
wxASSERT( IsEmpty(szValue) );
|
||||
|
||||
m_dwLastError = RegSetValue(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
|
||||
// ----------------------------------------------------------------------------
|
||||
|
||||
#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;
|
||||
}
|
||||
|
||||
bool wxRegKey::GetNextValue(wxString& strValueName, long& lIndex) const
|
||||
{
|
||||
wxASSERT( IsOpened() );
|
||||
wxASSERT( lIndex != -1 );
|
||||
|
||||
char 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
|
||||
|
||||
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;
|
||||
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;
|
||||
}
|
||||
|
||||
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));
|
||||
|
||||
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;
|
||||
}
|
||||
|
||||
// ============================================================================
|
||||
// implementation of global functions
|
||||
// ============================================================================
|
||||
bool KeyExists(HKEY hRootKey, const char *szKey)
|
||||
{
|
||||
HKEY hkeyDummy;
|
||||
if ( RegOpenKey(hRootKey, szKey, &hkeyDummy) == ERROR_SUCCESS ) {
|
||||
RegCloseKey(hkeyDummy);
|
||||
return TRUE;
|
||||
}
|
||||
else
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
const char *GetFullName(const wxRegKey *pKey, const char *szValue)
|
||||
{
|
||||
static wxString s_str;
|
||||
s_str = pKey->GetName();
|
||||
if ( !IsEmpty(szValue) )
|
||||
s_str << "\\" << szValue;
|
||||
|
||||
return s_str.c_str();
|
||||
}
|
||||
Reference in New Issue
Block a user