SMOOTHCALLBACK (original) (raw)

Summary

Handles each bump or nick found by L_SmoothBitmap.

Syntax

#include "l_bitmap.h"

L_INT pEXT_CALLBACK Your Function(uBumpOrNick, iStartRow, iStartCol, iLength, uHorV, pUserData)

Parameters

L_UINT uBumpOrNick

Flag that indicates whether to remove bumps or fill in nicks. Possible values are:

L_INT iStartRow

The starting row of the bump or nick. The rows are zero-based.

L_INT iStartCol

The starting column of the bump or nick. The columns are zero-based.

L_INT iLength

Length (in pixels) of the bump or nick.

L_UINT uHorV

Flag that indicates whether the element being smoothed is vertical or horizontal. Possible values are:

L_VOID *pUserData

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.

Returns

Comments

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.

Required DLLs and Libraries

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

See Also

Functions

• L_SmoothBitmap

Topics

• Raster Image Functions:Document Cleanup
• Cleaning Up 1-Bit Images

Example

For an example, refer to L_SmoothBitmap.