#include "ltwrappr.h"

virtual L_INT LBitmap::BorderRemoveCallBack(hRgn, uBorderToRemove, pBoundingRect)

HRGN hRgn;

windows region

L_UINT32 uBorderToRemove;

border flag

PRECT pBoundingRect;

pointer to a RECT structure

Called for each border found by LBitmap::BorderRemove.

Parameter Description
hRgn Windows region representing the border to be removed. It is the programmer's responsibility to delete this region (using DeleteObject() when it is no longer needed.
uBorderToRemove Flag that indicates which border is being processed. Possible values are:
  Value Meaning
  BORDER_LEFT The left border is being processed.
  BORDER_TOP The top border is being processed.
  BORDER_RIGHT The right border is being processed.
  BORDER_BOTTOM The bottom border is being processed.
pBoundingRect Pointer to a RECT structure that contains the bounding rectangle of the border being processed.



Remove the border.


Do not remove the border.


An error occurred. Refer to Return Codes.


This function is called once for each border found by LBitmap::BorderRemove. It is called a maximum of four times for each call to the LBitmap::BorderRemove. Return SUCCESS_REMOVE to have the border removed. Return SUCCESS_NOREMOVE to leave the border unchanged. Pass any other value to abort. This value will be the return value of the LBitmap::BorderRemove(). If flags BORDER_IMAGE_UNCHANGED and BORDER_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


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


Win32, x64.

See Also




Cleaning Up 1-Bit Images


For an example, refer to LBitmap::BorderRemove.

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