From 38be0d13830efd2d98281c645c3a60afe05ffece Mon Sep 17 00:00:00 2001 From: Qt by Nokia Date: Wed, 27 Apr 2011 12:05:43 +0200 Subject: Initial import from the monolithic Qt. This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12 --- tools/shared/windows/registry.cpp | 169 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 169 insertions(+) create mode 100644 tools/shared/windows/registry.cpp (limited to 'tools/shared/windows/registry.cpp') diff --git a/tools/shared/windows/registry.cpp b/tools/shared/windows/registry.cpp new file mode 100644 index 0000000000..87808c4060 --- /dev/null +++ b/tools/shared/windows/registry.cpp @@ -0,0 +1,169 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the qmake application of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include +#include "registry_p.h" + +QT_BEGIN_NAMESPACE + +#ifdef Q_OS_WIN32 +/*! + Returns the path part of a registry key. + e.g. + For a key + "Software\\Microsoft\\VisualStudio\\8.0\\Setup\\VC\\ProductDir" + it returns + "Software\\Microsoft\\VisualStudio\\8.0\\Setup\\VC\\" +*/ +static QString keyPath(const QString &rKey) +{ + int idx = rKey.lastIndexOf(QLatin1Char('\\')); + if (idx == -1) + return QString(); + return rKey.left(idx + 1); +} + +/*! + Returns the name part of a registry key. + e.g. + For a key + "Software\\Microsoft\\VisualStudio\\8.0\\Setup\\VC\\ProductDir" + it returns + "ProductDir" +*/ +static QString keyName(const QString &rKey) +{ + int idx = rKey.lastIndexOf(QLatin1Char('\\')); + if (idx == -1) + return rKey; + + QString res(rKey.mid(idx + 1)); + if (res == QLatin1String("Default") || res == QLatin1String(".")) + res = QString(); + return res; +} +#endif + +QString qt_readRegistryKey(HKEY parentHandle, const QString &rSubkey) +{ + QString result; + +#ifdef Q_OS_WIN32 + QString rSubkeyName = keyName(rSubkey); + QString rSubkeyPath = keyPath(rSubkey); + + HKEY handle = 0; + LONG res = RegOpenKeyEx(parentHandle, (wchar_t*)rSubkeyPath.utf16(), 0, KEY_READ, &handle); + + if (res != ERROR_SUCCESS) + return QString(); + + // get the size and type of the value + DWORD dataType; + DWORD dataSize; + res = RegQueryValueEx(handle, (wchar_t*)rSubkeyName.utf16(), 0, &dataType, 0, &dataSize); + if (res != ERROR_SUCCESS) { + RegCloseKey(handle); + return QString(); + } + + // get the value + QByteArray data(dataSize, 0); + res = RegQueryValueEx(handle, (wchar_t*)rSubkeyName.utf16(), 0, 0, + reinterpret_cast(data.data()), &dataSize); + if (res != ERROR_SUCCESS) { + RegCloseKey(handle); + return QString(); + } + + switch (dataType) { + case REG_EXPAND_SZ: + case REG_SZ: { + result = QString::fromWCharArray(((const wchar_t *)data.constData())); + break; + } + + case REG_MULTI_SZ: { + QStringList l; + int i = 0; + for (;;) { + QString s = QString::fromWCharArray((const wchar_t *)data.constData() + i); + i += s.length() + 1; + + if (s.isEmpty()) + break; + l.append(s); + } + result = l.join(QLatin1String(", ")); + break; + } + + case REG_NONE: + case REG_BINARY: { + result = QString::fromWCharArray((const wchar_t *)data.constData(), data.size() / 2); + break; + } + + case REG_DWORD_BIG_ENDIAN: + case REG_DWORD: { + Q_ASSERT(data.size() == sizeof(int)); + int i; + memcpy((char*)&i, data.constData(), sizeof(int)); + result = QString::number(i); + break; + } + + default: + qWarning("QSettings: unknown data %u type in windows registry", quint32(dataType)); + break; + } + + RegCloseKey(handle); +#else + Q_UNUSED(parentHandle); + Q_UNUSED(rSubkey) +#endif + + return result; +} + +QT_END_NAMESPACE + -- cgit v1.2.3