枚举机器串口个数

//枚举机器串口个数
int EnumerateCOMPort()
{

    int portcnt = 0;

    TCHAR port[MAX_PATH];

    COMMCONFIG comcfg;

    ULONG BuffSize = sizeof(port);

 

    for (int i = 1; i < 255 ; i++)

    {

        _stprintf(port,_T( "COM%d "),i);

        BuffSize = sizeof(port);
        if (GetDefaultCommConfig(port,&comcfg,&BuffSize))
        portcnt ++;
        memset(port,0,sizeof(port));
    }
    TRACE(_T( "/nThis computer has %d COM/n "),portcnt);
    return portcnt;
}