判断-U盘拔出和插入-获取它盘符

判断-U盘拔出和插入-获取它盘符

2010-05-04 10:59

加入消息
ON_WM_DEVICECHANGE(OnDeviceChange)

加入
afx_msg void OnDeviceChange(UINT nEventType, DWORD dwData);

---------------------------------------------------------------------------------------------------------------------------------
void CGggfDlg::OnDeviceChange(UINT nEventType, DWORD dwData)
{
    if( nEventType ==32768)
{
        MessageBox(_T("U盘插入"));
}

    else if(nEventType ==32772)
{
        MessageBox(_T("U盘拔出"));
}
}

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获取U盘符

    CString str = _T("z://");
    for( char ch = 'z'; ch >='c'; ch--)
    {
        str.SetAt(0,ch);
        UINT type = GetDriveType(str);
        if(DRIVE_REMOVABLE == type)
        {
            AfxMessageBox(str);
        }
    }