IMDSPObject::Seek

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

Syntax

HRESULT Seek(UINTfuFlags,DWORDdwOffset);

Parameters

fuFlags

[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.

dwOffset

[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:

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.

Remarks

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

Requirements

Header: Defined in mswmdm.h.

Library: mssachlp.lib

See Also

Ressources supplémentaires