IOpcSigningOptions::GetDefaultDigestMethod method (msopc.h)

Gets the default digest method that will be used to compute digest values for objects to be signed.

Syntax

HRESULT GetDefaultDigestMethod(
  LPWSTR *digestMethod
);

Parameters

digestMethod

A pointer to the default digest method, or the empty string "" if a default has not been set using the SetDefaultDigestMethod method.

Return value

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Return code Description
S_OK
The method succeeded.
E_POINTER
The digestMethod parameter is NULL.

Remarks

This method allocates memory used by the string returned in digestMethod. If the method succeeds, call the CoTaskMemFree function to free the memory.

To set the default digest method, call the IOpcSigningOptions::SetDefaultDigestMethod method.

Important  The default digest method must be set before the signature is generated by calling the IOpcDigitalSignatureManager::Sign method.
 

Thread Safety

Packaging objects are not thread-safe.

For more information, see the Getting Started with the Packaging API.

Requirements

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

See also

Core Packaging Interfaces

Getting Started with the Packaging API

IOpcDigitalSignatureManager

IOpcSigningOptions

Overviews

Packaging API Programming Guide

Packaging API Reference

Packaging API Samples

Packaging Digital Signature Interfaces

Packaging Interfaces

Reference