IXpsSignature::GetSignatureValue method (xpsdigitalsignature.h)

Gets the encrypted hash value of the signature.

Syntax

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

Parameters

[out] signatureHashValue

The byte array that represents the encrypted hash value of the signature.

[out] count

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

Requirement Value
Minimum supported client Windows 7 [desktop apps only]
Minimum supported server Windows Server 2008 R2 [desktop apps only]
Target Platform Windows
Header xpsdigitalsignature.h

See also

IOpcDigitalSignature

IXpsSignature

IXpsSignatureManager

XML Paper Specification

XPS Digital Signature API Errors

XPS Document Errors