Indicates a pending read or write operation.

TWorkBeginEvent = procedure (Sender: TObject; AWorkMode: TWorkMode; const AWorkCountMax: Integer) of object;

The number of bytes expected for this operation. Default value is 0.

The operation to be performed.

Object instance triggering the event.

TWorkBeginEvent is the event used to indicate that the component is about to read data from the peer or send data to the peer.

AWorkMode is the TWorkMode value that indicate the operation to be performed.

AWorkCountMax is the number of bytes expected for this operation, or 0 when no value is provided.