IMDSPObject::Seek
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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:
- 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. |
Remarks
This method is optional. For more information, see Mandatory and Optional Interfaces.
Requirements
Header: Defined in mswmdm.h.
Library: mssachlp.lib
See Also