GetSignature Method

Returns the Digital Signatures Sequence Item that corresponds to the Digital Signature at the specified index.

Syntax

Visual Basic
C#
WinRT C#
Objective-C
Java
WinRT JavaScript
C++

public DicomElement GetSignature( 
   DicomElement item,
   int index
)

'Declaration
 
Public Function GetSignature( _
   ByVal item As DicomElement, _
   ByVal index As Integer _
) As DicomElement

'Usage
 
Dim instance As DicomDataSet
Dim item As DicomElement
Dim index As Integer
Dim value As DicomElement
 
value = instance.GetSignature(item, index)

public DicomElement GetSignature( 
   DicomElement item,
   int index
)

ObjectiveC Syntax

 function Leadtools.Dicom.DicomDataSet.GetSignature( 
   item ,
   index 
)

public:
DicomElement^ GetSignature( 
   DicomElement^ item,
   int index
)

Parameters

item: The item in which the required Digital Signature is located. Set this parameter to null if the Digital Signature is located in the main Data Set.
index: The zero-based index of the required Digital Signature. This should be a number from 0 to GetSignaturesCount - 1.

Return Value

The Digital Signatures Sequence Item that corresponds to the required Digital Signature, or a null reference (Nothing in Visual Basic) if the specified index is invalid.

Remarks

For each Digital Signature in the main Data Set or in an item of a sequence of items, there should be a corresponding item under the Digital Signatures sequence (FFFA,FFFA) located in the main Data Set or in the item. This method can be used to obtain that Digital Signatures Sequence Item.

Along with this method, call the GetSignaturesCount method to enumerate the Digital Signatures in the main Data Set or in an item of a sequence of items. Once the Digital Signatures Sequence Item is obtained, the following methods can be used to verify, delete, or get information about the Digital Signature:

GetSignedElementsCount

Call the FindSignature method, to search the whole Data Set for a specific Digital Signature.

Example

For an example, refer to GetSignaturesCount.

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

DicomDataSet Class
DicomDataSet Members
GetSignaturesCount Method
FindSignature Method
VerifySignature Method
DeleteSignature Method
GetSignatureUID Method
GetSignatureDateTime Method
GetSignedElementsCount Method
GetSignedElement Method
GetMacTransferSyntax Method
GetMacAlgorithm Method
SaveCertificate Method
CreateSignature Method