IWMDMStorage::SetAttributes

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The SetAttributes method sets the attributes of the storage.

Syntax

HRESULT SetAttributes(DWORDdwAttributes,_WAVEFORMATEX*pFormat);

Parameters

dwAttributes

[in]  DWORD specifying the attributes to be set. The following table lists the attributes that can be set by this parameter.

Attribute Description
WMDM_FILE_ATTR_AUDIO This file contains audio data.
WMDM_FILE_ATTR_DATA This file contains non-audio data.
WMDM_FILE_ATTR_CANPLAY This audio file can be played by the device.
WMDM_FILE_ATTR_CANDELETE This file can be deleted.
WMDM_FILE_ATTR_CANMOVE This file or folder can be moved around on the storage medium.
WMDM_FILE_ATTR_CANRENAME This file or folder can be renamed.
WMDM_FILE_ATTR_CANREAD This file can be read by the host computer.
WMDM_FILE_ATTR_MUSIC This audio file contains music.
WMDM_FILE_ATTR_AUDIOBOOK This is an audio book file.
WMDM_FILE_ATTR_HIDDEN This file is hidden on the file system
WMDM_FILE_ATTR_SYSTEM This is a system file
WMDM_FILE_ATTR_READONLY This is a read-only file.

pFormat

[in]  Optional pointer to a _WAVEFORMATEX structure that specifies audio information about the object.

Return Values

The method returns an HRESULT. All the interface methods in Windows Media Device Manager 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 an extenstive 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 invalid or is a NULL pointer.
E_FAIL An unspecified error occurred.
WMDM_E_NOTCERTIFIED The caller is not certified.

Remarks

Many of the attributes listed for GetAttributes cannot be set, and so are not listed in the attribute table for SetAttributes.

Requirements

Header: Defined in mswmdm.h.

Library: mssachlp.lib

See Also