Qt中识别硬盘盘符

void fm_Import::ScanHD()

{

    QFileInfoList list =  QDir::drives();  //获取当前系统的盘符

    QString path;

    bool bUsb = false;

    for(int i=0;i<list.count();i++){

        path = list[i].filePath();

        qDebug()<<path;

        //windows API的头文件中，GetDriveType的参数是PCWCH或者LPCWCH类型，需要进行转换，

        //查看typedef CONST WCHAR *LPCWCH, *PCWCH;

        //typedef wchar_t WCHAR;    // wc,   16-bit UNICODE character

        UINT ret = GetDriveType((WCHAR *) path.utf16());

        qDebug()<<ret;

        if(ret == DRIVE_REMOVABLE){

            qDebug()<<"存在可移动盘:"<<path;

            bUsb = true;

            this->AddDisk(path);

        }

    }

}