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/****************************************************************************
**
** Copyright (C) 2022 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
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**
**
******************************************************************************/
#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;
m_handle = 0;
m_didLoad = false;
}
explicit QSystemLibrary(const wchar_t *libraryName)
{
m_libraryName = QString::fromWCharArray(libraryName);
m_handle = 0;
m_didLoad = false;
}
bool load(bool onlySystemDirectory = true)
{
m_handle = load((const wchar_t *)m_libraryName.utf16(), onlySystemDirectory);
m_didLoad = true;
return (m_handle != 0);
}
bool isLoaded()
{
return (m_handle != 0);
}
QFunctionPointer resolve(const char *symbol)
{
if (!m_didLoad)
load();
if (!m_handle)
return 0;
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;
QString m_libraryName;
bool m_didLoad;
};
QT_END_NAMESPACE
#endif // Q_OS_WIN
#endif // QSYSTEMLIBRARY_P_H
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