IX509ExtensionMSApplicationPolicies::InitializeEncode method (certenroll.h)

Article
02/22/2024

The InitializeEncode method initializes the extension from an ICertificatePolicies collection.

Syntax

HRESULT InitializeEncode(
  [in] ICertificatePolicies *pValue
);

Parameters

[in] pValue

Pointer to the ICertificatePolicies interface.

Return value

If the function succeeds, the function returns S_OK.

If the function fails, it returns an HRESULT value that indicates the error. Possible values include, but are not limited to, those in the following table. For a list of common error codes, see Common HRESULT Values.

Return code/value	Description
HRESULT_FROM_WIN32(ERROR_ALREADY_INITIALIZED)	The object is already initialized.

Remarks

You must call either InitializeEncode or InitializeDecode before you can use an IX509ExtensionMSApplicationPolicies object. The two methods complement each other. The InitializeEncode method enables you to construct a Distinguished Encoding Rules (DER) encoded ASN.1 extension object from raw data, and the InitializeDecode method enables you to initialize the raw data from an encoded object.

You can retrieve the following properties for this extension:

The Critical property identifies whether the extension is critical. You can also specify this property.
The ObjectId property retrieves the extension object identifier (OID).
The Policies property retrieves the collection of certificate policies (the raw extension data).

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2008 [desktop apps only]
Target Platform	Windows
Header	certenroll.h
DLL	CertEnroll.dll