windows实时监测热插拔设备的变化2

//动态监测设备插拔

#include <Dbt.h>

BEGIN_MESSAGE_MAP(ParticipateMeeting, CDialogEx)

    ON_WM_DEVICECHANGE()

END_MESSAGE_MAP()

afx_msg BOOL OnDeviceChange(UINT nEventType, DWORD dwData);

BOOL ParticipateMeeting::OnDeviceChange(UINT nEventType, DWORD dwData)

{

    DEV_BROADCAST_DEVICEINTERFACE * dbd = (DEV_BROADCAST_DEVICEINTERFACE*)dwData;

    switch (nEventType)

    {

    case   DBT_DEVICEARRIVAL:

        MessageBox(L"Device arrival!");

        break;

    case   DBT_DEVICEQUERYREMOVE:

        //   Handle   device   removal   request

        MessageBox(L"Device request remove!");

        break;

    case   DBT_DEVICEREMOVECOMPLETE:

        //   Handle   device   removal

        MessageBox(L"Device removal!");

        break;

    case   DBT_DEVNODES_CHANGED:

        //

        MessageBox(L"DBT_DEVNODES_CHANGED");

        break;

    case   DBT_DEVTYP_DEVICEINTERFACE:

        //

        MessageBox(L"DBT_DEVTYP_DEVICEINTERFACE");

        break;

    case   DBT_DEVTYP_HANDLE:

        //

        MessageBox(L"DBT_DEVTYP_HANDLE");

        break;

    case   DBT_DEVTYP_OEM:

        //

        MessageBox(L"DBT_DEVTYP_OEM");

        break;

    case   DBT_DEVTYP_PORT:

        //

        MessageBox(L"DBT_DEVTYP_PORT");

        break;

    case   DBT_DEVTYP_VOLUME:

        //

        MessageBox(L"DBT_DEVTYP_VOLUME");

        break;

    default:

        MessageBox(L"others!");

        break;

    }

    return  TRUE;

}