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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QSYSTEMLIBRARY_P_H
#define QSYSTEMLIBRARY_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/private/qglobal_p.h>
#ifdef Q_OS_WIN
# include <QtCore/qstring.h>
# include <qt_windows.h>
QT_BEGIN_NAMESPACE
class QSystemLibrary
{
public:
explicit QSystemLibrary(const QString &libraryName)
{
m_libraryName = libraryName;
}
explicit QSystemLibrary(const wchar_t *libraryName)
{
m_libraryName = QString::fromWCharArray(libraryName);
}
bool load(bool onlySystemDirectory = true)
{
m_handle = load((const wchar_t *)m_libraryName.utf16(), onlySystemDirectory);
m_didLoad = true;
return (m_handle != nullptr);
}
bool isLoaded()
{
return (m_handle != nullptr);
}
QFunctionPointer resolve(const char *symbol)
{
if (!m_didLoad)
load();
if (!m_handle)
return nullptr;
return QFunctionPointer(GetProcAddress(m_handle, symbol));
}
static QFunctionPointer resolve(const QString &libraryName, const char *symbol)
{
return QSystemLibrary(libraryName).resolve(symbol);
}
static Q_CORE_EXPORT HINSTANCE load(const wchar_t *lpFileName, bool onlySystemDirectory = true);
private:
HINSTANCE m_handle = nullptr;
QString m_libraryName = {};
bool m_didLoad = false;
};
QT_END_NAMESPACE
#endif // Q_OS_WIN
#endif // QSYSTEMLIBRARY_P_H
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