public static List <PrinterPort> GetAllPorts()
{
PORT_INFO_2[] ports = GetAvailablePorts("");
List <PrinterPort> portList = new List <PrinterPort>();
if (ports == null)
{
return(portList); // retorna a lista vazia
}
foreach (PORT_INFO_2 port in ports)
{
PrinterPort printerPort = new PrinterPort();
printerPort.Name = port.pPortName;
printerPort.Description = port.pDescription;
printerPort.Type = port.fPortType;
portList.Add(printerPort);
}
return(portList);
}
public static PrinterPort GetPort(String portName)
{
PORT_INFO_2[] ports = GetAvailablePorts("");
if (ports == null)
{
return(null); // nenhuma porta encontrada
}
foreach (PORT_INFO_2 port in ports)
{
if (port.pPortName.ToUpper() == portName.ToUpper())
{
PrinterPort printerPort = new PrinterPort();
printerPort.Name = port.pPortName;
printerPort.Description = port.pDescription;
printerPort.Type = port.fPortType;
return(printerPort);
}
}
return(null);
}
/// <summary>
/// Verifica se a impressora está ligada em rede (através de porta TCP/IP)
/// Localiza a porta da impressora no dicionário de portas e checa a propriedade "netAttached"
/// </summary>
private static Boolean IsNetworkAttached(ManagementObject printer, Dictionary <String, PrinterPort> portDic)
{
Boolean isNetworkAttached = false;
// Verifica se a porta da impressora está presente no dicionário
if (!portDic.ContainsKey((String)printer["PortName"]))
{
return(false);
}
PrinterPort printerPort = portDic[(String)printer["PortName"]];
if (printerPort != null)
{
if ((printerPort.Type & PortTypeEnum.netAttached) == PortTypeEnum.netAttached)
{
isNetworkAttached = true;
}
}
return(isNetworkAttached);
}