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/****************************************************************************
**
** Copyright (C) 2011-2012 Denis Shienkov <scapig2@yandex.ru>
** Copyright (C) 2011 Sergey Belyashov <Sergey.Belyashov@gmail.com>
** Copyright (C) 2012 Laszlo Papp <lpapp@kde.org>
** Contact: http://www.qt-project.org/
**
** This file is part of the QtSerialPort module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "serialportinfo.h"
#include "serialportinfo_p.h"
#include "serialport_win_p.h"
#include <qt_windows.h>
#include <QtCore/qvariant.h>
#include <QtCore/qstringlist.h>
QT_BEGIN_NAMESPACE_SERIALPORT
const static QString valueName(QLatin1String("FriendlyName"));
static QString findDescription(HKEY parentKeyHandle, const QString &subKey)
{
QString result;
HKEY hSubKey = 0;
LONG res = ::RegOpenKeyEx(parentKeyHandle, reinterpret_cast<const wchar_t *>(subKey.utf16()),
0, KEY_QUERY_VALUE | KEY_ENUMERATE_SUB_KEYS, &hSubKey);
if (res == ERROR_SUCCESS) {
DWORD dataType = 0;
DWORD dataSize = 0;
res = ::RegQueryValueEx(hSubKey, reinterpret_cast<const wchar_t *>(valueName.utf16()),
NULL, &dataType, NULL, &dataSize);
if (res == ERROR_SUCCESS) {
QByteArray data(dataSize, 0);
res = ::RegQueryValueEx(hSubKey, reinterpret_cast<const wchar_t *>(valueName.utf16()),
NULL, NULL,
reinterpret_cast<unsigned char *>(data.data()),
&dataSize);
if (res == ERROR_SUCCESS) {
switch (dataType) {
case REG_EXPAND_SZ:
case REG_SZ:
if (dataSize)
result = QString::fromWCharArray(reinterpret_cast<const wchar_t *>(data.constData()));
break;
default:
break;
}
}
} else {
DWORD index = 0;
dataSize = 255; // Max. key length (see MSDN).
QByteArray data(dataSize, 0);
while (::RegEnumKeyEx(hSubKey, index++,
reinterpret_cast<wchar_t *>(data.data()), &dataSize,
NULL, NULL, NULL, NULL) == ERROR_SUCCESS) {
result = findDescription(hSubKey,
QString::fromUtf16(reinterpret_cast<ushort *>(data.data()), dataSize));
if (!result.isEmpty())
break;
}
}
::RegCloseKey(hSubKey);
}
return result;
}
QList<SerialPortInfo> SerialPortInfo::availablePorts()
{
QList<SerialPortInfo> ports;
DEVMGR_DEVICE_INFORMATION di;
di.dwSize = sizeof(di);
const HANDLE hSearch = ::FindFirstDevice(DeviceSearchByLegacyName,
L"COM*",
&di);
if (hSearch != INVALID_HANDLE_VALUE) {
do {
SerialPortInfo info;
info.d_ptr->device = QString::fromWCharArray(di.szLegacyName);
info.d_ptr->portName = SerialPortPrivate::portNameFromSystemLocation(info.d_ptr->device);
info.d_ptr->description = findDescription(HKEY_LOCAL_MACHINE,
QString::fromWCharArray(di.szDeviceKey));
// Get manufacturer, vendor identifier, product identifier are not
// possible.
ports.append(info);
} while (::FindNextDevice(hSearch, &di));
::FindClose(hSearch);
}
return ports;
}
QT_END_NAMESPACE_SERIALPORT
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