ISCardFileAccess::Seek method
[The Seek method is available for use in the operating systems specified in the Requirements section. It is not available for use in Windows Server 2003 with Service Pack 1 (SP1) and later, Windows Vista, Windows Server 2008, and subsequent versions of the operating system. The Smart Card Modules provide similar functionality.]
The Seek method selects the object from which (read/write) access will be done.
Syntax
HRESULT Seek(
[in] HSCARD_FILE hFile,
[in] SEEKTYPE *Seek,
[in] LONG lOffset
);
Parameters
-
hFile [in]
-
Handle of the open file.
-
Seek [in]
-
Location where the seek should begin.
Value Meaning - SC_SEEK_FROM_BEGINNING
Begin search at the beginning. - SC_SEEK_FROM_END
Begin search from the end. - SC_SEEK_RELATIVE
Begin search from the current position. -
lOffset [in]
-
Number of data objects from the reference object.
Return value
The method returns one of the following possible values.
| Return code | Description |
|---|---|
|
Operation completed successfully. |
|
Invalid parameter. |
|
Out of memory. |
Remarks
To read to or write from a file, call Read or Write respectively.
For a list of all the methods defined by this interface, see ISCardFileAccess.
In addition to the COM error codes listed above, this interface may return a smart card error code if a smart card function was called to complete the request. For more information, see Smart Card Return Values.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows XP [desktop apps only] |
| Minimum supported server |
Windows Server 2003 [desktop apps only] |
| End of client support |
Windows XP |
| End of server support |
Windows Server 2003 |
See also