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LBitmap::BorderRemoveCallBack

Summary

Called for each border found by LBitmap::BorderRemove.

Syntax

#include "ltwrappr.h"

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

Parameters

HRGN 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.

L_UINT32 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.

PRECT pBoundingRect

Pointer to a RECT structure that contains the bounding rectangle of the border being processed.

Returns

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

Comments

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.