Creating an SCU

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

• Create the DICOM Network handle by calling L_DicomCreateNet.

• Initialize the DICOM Network handle by calling L_DicomStartUp. 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.

• Call L_DicomSetCallback to set the callback functions you wish to use.

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

• The SCP should respond by calling L_DicomAccept. This will generate a call to the CONNECTCALLBACK 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 handle by calling L_DicomCreateAssociate.

• Initialize the newly created DICOM Associate handle by calling L_DicomDefaultAssociate, or set the new DICOM Associate handle using the following functions:

  • L_DicomSetRequest
  • L_DicomSetVersion
  • L_DicomSetCalled
  • L_DicomSetCalling
  • L_DicomSetApplication
  • L_DicomSetPresentation
  • L_DicomSetResult
  • L_DicomSetAbstract
  • L_DicomSetTransfer
  • L_DicomSetMaxLength
  • L_DicomSetImplementClass
  • L_DicomSetAsyncOperations
  • L_DicomSetRoleSelect
  • L_DicomSetImplementVersion
  • L_DicomSetUserInfo
  • L_DicomSetExtended
  • L_DicomAddPresentation
  • L_DicomAddTransfer

• To connect to an SCP, call L_DicomSendAssociateRequest. This will generate a call to the RECEIVEASSOCIATEREQUESTCALLBACK 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 L_DicomSendAssociateAccept or L_DicomSendAssociateReject. This will generate a call to the RECEIVEASSOCIATEACCEPTCALLBACK or the RECEIVEASSOCIATEREJECTCALLBACK. If RECEIVEASSOCIATEACCEPTCALLBACK is called, the DICOM Associate Connection has been established.