DataIn Event

Fired when data is received.

Syntax

class UDPPortDataInEventParams {
public:
  const QByteArray &Datagram();
  const QString &SourceAddress();
  int SourcePort();
  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void DataIn(UDPPortDataInEventParams *e);
// Or, subclass UDPPort and override this emitter function. virtual int FireDataIn(UDPPortDataInEventParams *e) {...}

Remarks

The DataIn event is fired every time a new datagram is received.

Datagram contains the packet as sent by the remote host.

SourceAddress contains the IP number (Internet address) of the remote host, and SourcePort contains the port from which the packet originated.

Note that events are not re-entrant. Performing time consuming operations within this event will prevent it from firing again in a timely manner and may impact overall performance.

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IPWorks 2020 Qt Edition - Version 20.0 [Build 8307]