IXpsSignature::GetSignatureValue method (xpsdigitalsignature.h)

Article
02/22/2024

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