LBitmap::SliceCallBack

#include "ltwrappr.h"

virtual L_INT LBitmap::SliceCallBack(Bitmap, lpSliceRect, nAngle)

LBitmapBase &Bitmap;	/* pointer to the bitmap */
LPRECT lpSliceRect;	/* pointer to the bounding rectangle of the extracted slice */
L_INT nAngle;	/* deskew angle */

Handles each slice segment found by the LBitmap::Slice function.

Parameter	Description
Bitmap	Optional parameter that points to the bitmap handle referencing the sliced bitmaps. It is the programmer's responsibility to free this bitmap (using LBitmapBase::Free, and GlobalFree(pBitmap)) when it is no longer needed. This parameter is updated only if SLC_CUTSLICES flag of the SLICEBITMAPOPTIONS structure is used, else it will be NULL.
lpSliceRect	Pointer to a RECT structure that contains the bounding rectangle of the extracted slice.
nAngle	Deskew angle. The amount of rotation is expressed in hundredths of degrees. For example, 500 means 5 degrees clockwise.

Returns

>0	Continue the process.
-1	Stop the process and return the specified error code. Refer to Return Codes.

Comments

NOTE: the slice functionality is not currently supported in the C++ Class Library. However, this functionality can be implemented by calling the C DLL function directly. For a code sample that indicates how to call the C DLL function from your code, refer to LBitmap::Slice.

The callback is called once for each slice that is detected. Return a positive number to continue the process. Return a negative number to abort.

Required DLLs and Libraries

LTIMG

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64.

Functions:	LBitmap::Slice
Topics:	Processing an Image
	Raster Image Functions: Creating and Maintaining Lists of Images
	Raster Image Functions: Creating and Using a Region