#include "l_bitmap.h"
L_INT pEXT_CALLBACK Your Function(uBumpOrNick, iStartRow, iStartCol, iLength, uHorV, pUserData)
Handles each bump or nick found by L_SmoothBitmap.
Flag that indicates whether to remove bumps or fill in nicks. Possible values are:
Value | Meaning |
---|---|
SMOOTH_NONE | Do nothing. |
SMOOTH_BUMP | Remove a bump. |
SMOOTH_NICK | Fill in a nick. |
The starting row of the bump or nick. The rows are zero-based.
The starting column of the bump or nick. The columns are zero-based.
Length (in pixels) of the bump or nick.
Flag that indicates whether the element being smoothed is vertical or horizontal. Possible values are:
Value | Meaning |
---|---|
SMOOTH_HORIZONTAL_ELEMENT | A horizontal bump or nick |
SMOOTH_VERTICAL_ELEMENT | A vertical bump or nick |
A void pointer that you can use to access a variable or structure containing data that your callback function needs. This gives you a way to receive data indirectly from the function that uses this callback function. (This is the same pointer that you pass in the pUserData parameter of L_SmoothBitmap).
Keep in mind that this is a void pointer, which must be cast to the appropriate data type within your callback function.
Value | Meaning |
---|---|
SUCCESS_REMOVE | Remove the bump or nick. |
SUCCESS_NOREMOVE | Do not remove the bump or nick. |
Otherwise | An error occurred. Refer to Return Codes. |
The callback is called for each bump and nick found. Return SUCCESS_REMOVE to have the bump or nick removed. Return SUCCESS_NOREMOVE to leave the bump or nick unchanged. Pass any other value to abort. This value will be the return value of the L_SmoothBitmap(). If flags SMOOTH_IMAGE_UNCHANGED and SMOOTH_SINGLE_REGION are being used, then the return value of the callback affects only the internal single region that contains all the changes.
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