C++ Class Library

The LEADTOOLS C++ Class Library is a wrapper to the LEADTOOLS C API and provides only a subset of the features and functionality otherwise available in the LEADTOOLS C API. For more information about the full feature set of the LEADTOOLS C API, refer to LEADTOOLS C API Introduction.

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LBitmap::DotRemoveCallBack

Summary

Called for each dot found by LBitmap::DotRemove.

Syntax

#include "ltwrappr.h"

virtual L_INT LBitmap::DotRemoveCallBack(hRgn, pBoundingRect, iWhiteCount, iBlackCount)

Parameters

HRGN hRgn

Windows region representing the dot to be removed. It is the programmer's responsibility to delete this region (using DeleteObject()) when it is no longer needed.

PRECT pBoundingRect

Pointer to a PRECT structure that contains the bounding rectangle of the dot being processed.

L_INT32 iWhiteCount

Total number of white pixels in the dot being processed.

L_INT32 iBlackCount

Total number of black pixels in the dot being processed.

Returns

Value Meaning
SUCCESS_REMOVE Remove the dot.
SUCCESS_NOREMOVE Do not remove the dot.
Otherwise An error occurred. Refer to Return Codes.

Comments

This function is called once for each dot, speck, or blob that is detected Return SUCCESS_REMOVE to have the dot removed. Return SUCCESS_NOREMOVE to leave the dot unchanged. Pass any other value to abort. This value will be the return value of the LBitmap::DotRemove(). If DOT_IMAGE_UNCHANGED and DOT_SINGLE_REGION are being used, then the return value of this function affects only the internal single region that contains all the changes.

Required DLLs and Libraries

Platforms

Win32, x64.

See Also

Functions

Topics

Example

For an example, refer to LBitmap::DotRemove.

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LEADTOOLS Raster Imaging C++ Class Library Help
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.