#include "ltwrappr.h"

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

Called for each dot found by LBitmap::DotRemove.



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.


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


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


Win32, x64.

See Also




For an example, refer to LBitmap::DotRemove.

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