Creating an SCU

The following steps provide the basic information required to create an SCU:

• Initialize the DICOM DLL by calling LDicomNet::StartUp. This must be done before any DICOM Network Operations functions are called.. Please note that this only needs to be called once for each application.

• Create the DICOM Network object by calling LDicomNet::LDicomNet.

• To connect to an SCP, call LDicomNet::Connect. This will generate a call to the LDicomNet::OnAccept function on the SCP to let the SCP know that a connection request has been received.

• The SCP should respond by calling LDicomNet::Accept. This will generate a call to the LDicomNet::OnConnect on the SCU. At this time the DICOM Network connection has been established.

• Establish a security layer. For more information on security layers, refer to Adding Security to a DICOM Connection and Adding TLS Security to a DICOM Connection.

• Create the DICOM Associate object by calling LDicomAssociate::LDicomAssociate.

• Initialize the newly created DICOM Associate object by calling LDicomAssociate::Default, or set the new DICOM Associate object using the following functions:

  • LDicomAssociate::SetRequest
  • LDicomAssociate::SetVersion
  • LDicomAssociate::SetCalled
  • LDicomAssociate::SetCalling
  • LDicomAssociate::SetApplication
  • LDicomAssociate::SetPresentation
  • LDicomAssociate::SetResult
  • LDicomAssociate::SetAbstract
  • LDicomAssociate::SetTransfer
  • LDicomAssociate::SetMaxLength
  • LDicomAssociate::SetImplementClass
  • LDicomAssociate::SetAsyncOperations
  • LDicomAssociate::SetRoleSelect
  • LDicomAssociate::SetImplementVersion
  • LDicomAssociate::SetUserInfo
  • LDicomAssociate::SetExtended
  • LDicomAssociate::AddPresentation
  • LDicomAssociate::AddTransfer

• To connect to an SCP, call LDicomNet::SendAssociateRequest. This will generate a call to LDicomNet::OnReceiveAssociateRequest on the SCP to let the SCP know an associate connection request has been received.

• The SCP may accept or reject the request and respond by calling LDicomNet::SendAssociateAccept or LDicomNet::SendAssociateReject. This will generate a call to LDicomNet::OnReceiveAssociateAccept or LDicomNet::OnReceiveAssociateReject. If LDicomNet::OnReceiveAssociateAccept is called, the DICOM Associate Connection has been established.