#include "ltwrappr.h"
virtual L_INT32 LBaseFile::RedirectSeekCallBack(FD, lnPos, nCount)
L_INT FD; |
the file to search |
L_INT32 lnPos; |
starting position and direction |
L_INT nCount; |
number of bytes |
Replaces the normal LEADTOOLS function for repositioning a file pointer.
Parameter | Description | |
FD | Identifies the file to search. The file handle is returned by the RedirectOpenCallBack function. | |
lnPos | 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. | |
nCount | The number of bytes the pointer is to be moved. |
>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 LFile::FeedLoad, LFile::StartFeedLoad, LFile::StopFeedLoad, LMemoryFile::Load, LMemoryFile::LoadMemory, LMemoryFile::LoadMemoryTile, and LMemoryFile::Save.
Note: |
The Redirect input / output functions do not support Kodak PhotoCD (PCD) or FlashPix (FPX) files. |
Required DLLs and Libraries
LTKRN For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
Raster .NET | C API | C++ Class Library | JavaScript HTML5
Document .NET | C API | C++ Class Library | JavaScript HTML5
Medical .NET | C API | C++ Class Library | JavaScript HTML5
Medical Web Viewer .NET
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