winshutdownmonitor.h

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// Copyright (c) 2014-2021 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
#ifndef BITCOIN_QT_WINSHUTDOWNMONITOR_H
#define BITCOIN_QT_WINSHUTDOWNMONITOR_H
 
#ifdef WIN32
#include <QByteArray>
#include <QString>
#include <functional>
 
#include <windows.h>
 
#include <QAbstractNativeEventFilter>
 
class WinShutdownMonitor : public QAbstractNativeEventFilter
{
public:
    WinShutdownMonitor(std::function<void()> shutdown_fn) : m_shutdown_fn{std::move(shutdown_fn)} {}
 
#if (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))
    bool nativeEventFilter(const QByteArray &eventType, void *pMessage, qintptr *pnResult) override;
#else
    bool nativeEventFilter(const QByteArray &eventType, void *pMessage, long *pnResult) override;
#endif
 
    static void registerShutdownBlockReason(const QString& strReason, const HWND& mainWinId);
 
private:
    std::function<void()> m_shutdown_fn;
};
#endif
 
#endif // BITCOIN_QT_WINSHUTDOWNMONITOR_H