cbb2ce0f91
The Visual Studio registry keys are stored in the 32 bit view. Extend qt_readRegistryKey with an option that enables the caller to choose the 32 bit or 64 bit registry view. We now read the Visual Studio registry keys from the 32 bit registry view even in a 64 bit build. Adding the next Visual Studio version will become a bit easier. Change-Id: I7300b992be6058f30a422e3f1fe0bafade6eea54 Reviewed-by: Oliver Wolff <oliver.wolff@theqtcompany.com> Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
79 lines
2.6 KiB
C
79 lines
2.6 KiB
C
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the qmake application of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QT_WINDOWS_REGISTRY_H
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#define QT_WINDOWS_REGISTRY_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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QT_BEGIN_NAMESPACE
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#include <QtCore/qglobal.h>
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#ifdef Q_OS_WIN32
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#include <QtCore/qt_windows.h>
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#else
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typedef void* HKEY;
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#endif
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#include <QtCore/qstring.h>
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/**
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* Read a value from the Windows registry.
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*
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* If the key is not found, or the registry cannot be accessed (for example
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* if this code is compiled for a platform other than Windows), a null
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* string is returned.
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*
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* 32-bit code reads from the registry's 32 bit view (Wow6432Node),
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* 64 bit code reads from the 64 bit view.
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* Pass KEY_WOW64_32KEY to access the 32 bit view regardless of the
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* application's architecture, KEY_WOW64_64KEY respectively.
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*/
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QString qt_readRegistryKey(HKEY parentHandle, const QString &rSubkey,
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unsigned long options = 0);
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QT_END_NAMESPACE
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#endif // QT_WINDOWS_REGISTRY_H
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