#include "myeventfilter.h"

#include <QDebug>



#ifdef Q_OS_WIN

#include "Windows.h"

#include "Dbt.h"

#endif



MyEventFilter::MyEventFilter(QObject *parent) : QObject(parent)

{



}



bool MyEventFilter::nativeEventFilter(const QByteArray &eventType, void *message, long *result)

{

    if(eventType == "windows_generic_MSG" || eventType == "windows_dispatcher_MSG")

    {

        #ifdef Q_OS_WIN



        MSG* msg = reinterpret_cast<MSG*>(message);

        int msgType = msg->message;

        if(msgType == WM_DEVICECHANGE)

        {

            PDEV_BROADCAST_HDR lpdb = (PDEV_BROADCAST_HDR)msg->lParam;

            switch (msg->wParam) {

            case DBT_DEVICEARRIVAL:

                qDebug() << "DBT_DEVICEARRIVAL:" << lpdb->dbch_devicetype;

                if(lpdb->dbch_devicetype == DBT_DEVTYP_PORT)

                {

                    PDEV_BROADCAST_PORT lpdbv = (PDEV_BROADCAST_PORT)lpdb;

                    QString portName = QString::fromWCharArray(lpdbv->dbcp_name);

                    qDebug() << "device arrival:" << portName;



                    emit comDevArriaval(portName);

                }

                break;

            case DBT_DEVICEREMOVECOMPLETE:

                qDebug() << "DBT_DEVICEREMOVECOMPLETE:" << lpdb->dbch_devicetype;

                if(lpdb->dbch_devicetype == DBT_DEVTYP_PORT)

                {

                    PDEV_BROADCAST_PORT lpdbv = (PDEV_BROADCAST_PORT)lpdb;

                    QString portName = QString::fromWCharArray(lpdbv->dbcp_name);

                    qDebug() << "device remove complete:" << portName;



                    emit comDevRemoveComplete(portName);

                }

                break;

            case DBT_DEVNODES_CHANGED:

                break;

            default:

                break;

            }

        }



        #endif

    }







    return false;

}