IOpcSigningOptions::SetDefaultDigestMethod method (msopc.h)

Article
02/22/2024

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

Syntax

HRESULT SetDefaultDigestMethod(
  [in] LPCWSTR digestMethod
);

Parameters

[in] digestMethod

The default digest 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

To access the default digest method before the signature is generated, call the IOpcSigningOptions::GetDefaultDigestMethod.

Important The default digest method for entities to be signed 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

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