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IXpsSignature::GetSignatureValue method

Gets the encrypted hash value of the signature.

Syntax

HRESULT GetSignatureValue(
  [out] UINT8  **signatureHashValue,
  [out] UINT32 *count
);

Parameters

  • signatureHashValue [out]
    The byte array that represents the encrypted hash value of the signature.

  • count [out]
    The length of the byte array that is referenced by signatureHashValue.

Return value

The method returns an HRESULT. Possible values include, but are not limited to, those in the table that follows. For return values that are not listed in this table, see XPS Digital Signature API Errors and XPS Document Errors.

Return code Description
S_OK

The method succeeded.

E_UNEXPECTED

The interface is not connected to the signature manager.

 

Remarks

This method allocates the memory buffer whose pointer is returned in signatureHashValue. If signatureHashValue is not NULL, use the CoTaskMemFree function to free the memory.

Requirements

Minimum supported client

Windows 7 [desktop apps only]

Minimum supported server

Windows Server 2008 R2 [desktop apps only]

Header

Xpsdigitalsignature.h

IDL

XpsDigitalSignature.idl

See also

IXpsSignature

IOpcDigitalSignature

IXpsSignatureManager

XPS Digital Signature API Errors

XPS Document Errors

XML Paper Specification