IMDSPObject::Seek (deprecated)

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This is preliminary documentation and subject to change.

This topic documents a feature of the Windows Media Device Manager SDK. We recommend that you migrate your application to use the Windows Portable Devices API. For more information, see the Windows Portable Devices SDK.

The Seek method sets the current position within the object. This operation is valid only if the storage object represents a file.


  UINT  fuFlags,
  DWORD  dwOffset



[in]  Mode in which the file must be opened. It must be one of the values in the following table.

Value Description
MDSP_SEEK_BOF Seek dwOffset bytes forward from the beginning of the file.
MDSP_SEEK_CUR Seek dwOffset bytes forward from the current position.
MDSP_SEEK_EOF Seek dwOffset bytes backward from the end of the file.


[in]  DWORD containing the number of bytes to seek.

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.
WMDM_E_BUSY The media device is busy.
WMDM_E_INTERFACEDEAD The file or folder was previously deleted.
WMDM_E_NOTSUPPORTED Seeking is not supported on this medium.
E_INVALIDARG The mode specified in fuFlags is invalid.
E_FAIL An unspecified error occurred.


This method is optional. For more information, see Mandatory and Optional Interfaces.


Header: Defined in mswmdm.h.

Library: mssachlp.lib

See Also