ExtendedNegotiationValues Property

In This Topic

Used to negotiate extended information about a SOP class

Syntax

Visual Basic
C#
Delphi
JScript
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Property ExtendedNegotiationValues As System.Byte()

'Usage
 
Dim instance As DicomContext
Dim value() As System.Byte
 
instance.ExtendedNegotiationValues = value
 
value = instance.ExtendedNegotiationValues

public System.byte[] ExtendedNegotiationValues {get; set;}

public read-write property ExtendedNegotiationValues: System.array of Byte;

public function get,set ExtendedNegotiationValues : System.byte[]

public: __property System.byte[]* get_ExtendedNegotiationValues();
public: __property void set_ExtendedNegotiationValues( 
   System.byte[][]* value
);

public:
property System.array<byte>^ ExtendedNegotiationValues {
   System.array<byte>^ get();
   void set (    System.array<byte>^ value);
}

Remarks

This property enable applications to share or negotiate extended information about themselves.

The exact meanings of the various values and byte positions used for extended negotiation vary from one service class to another, and they are all detailed in part 4 of DICOM. e.g. for C-STORE operations, byte 1 represents the "storage level", byte 3 the level of digital signature support and byte 5 controls the coercion of data elements (2,4, & 6 are reserved). However, for C-FIND operations, only 1 byte is specified, indicating whether the SCP supports relational queries. In all cases, support is optional, and default values exist if extended negotiation is not performed.

If this property is set to true, then any extended negotiation items set up before Open are proposed. When incoming associations are received, then incoming values are automatically sent out again (i.e. accepted) unless altered using the ExtendedNegotiationValues property in the AssociationRequest event.

Once an association is established, this property becomes read-only, but still reflects the arrangement negotiated.

Please note that this property is shared between all contexts with the same AbstractSyntax (SOP class), so changing one will change the value for any other matching contexts.

Requirements

Target Platforms: .NET CLR 4.8 or higher

Reference

DicomContext Class
DicomContext Members

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