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IMDSPDevice::EnumStorage

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The EnumStorage method retrieves a pointer to an IMDSPEnumStorage interface of an enumerator object that represents the top-level storage(s) on the device. Top level storage for a device is the root directory of the storage medium. This method must be implemented. It must not return WMDM_E_NOTSUPPORTED or E_NOTIMPL. For more information, see the second table under Implementing Service Providers.

Syntax

HRESULT EnumStorage(
  IMDSPEnumStorage**  ppEnumStorage
);

Parameters

ppEnumStorage

[out]  Pointer to an IMDSPEnumStorage object.

Return Values

The method returns an HRESULT. All the interface methods in Windows Media Device Manager and service provider can return any of the following classes of error codes:

  • Standard COM error codes
  • Windows error codes converted to HRESULT values
  • Windows Media Device Manager error codes

For a complete list of possible error codes, see Error Codes.

Possible values include, but are not limited to, those in the following table.

Return code Description
S_OK The method succeeded.
E_INVALIDARG A parameter is an invalid or NULL pointer.
WMDM_E_NOTCERTIFIED The caller is not certified.
E_OUTOFMEMORY Insufficient memory for allocating the enumerator object.

Requirements

Header: Defined in wmsp.idl.

Library: mssachlp.lib

See Also