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virtual L_INT32 LBaseFile::RedirectSeekCallBack(FD, lnPos, nCount)
Replaces the normal LEADTOOLS function for repositioning a file pointer.
Identifies the file to search. The file handle is returned by the RedirectOpenCallBack function.
The starting position and direction of the pointer. Possible values are:
| Value | Meaning |
|---|---|
| 0 | Move the file pointer nCount bytes from the beginning of the file. |
| 1 | Move the file pointer nCount bytes from its current position. |
| 2 | Move the file pointer nCount bytes from the end of the file. |
The number of bytes the pointer is to be moved.
| Value | Meaning |
|---|---|
| >0 | The offset, in bytes, of the new position from the beginning of the file. |
| -1 | The function failed. |
Override this function to replace the normal LEADTOOLS function for repositioning a file pointer.
The Redirect input / output functions cannot be used in combination with:
Note: The Redirect input / output functions do not support Kodak PhotoCD (PCD) or FlashPix (FPX) files.
For an example, refer to LFile::StartFeedLoad.
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