#include "l_bitmap.h"

L_INT EXT_CALLBACK YourFunction (rcRect, pObject, pUserData)

L_RECT rcRect;

Lead Rectangle

L_INT * * pObject;

two dimensional array

L_VOID * pUserData;

pointer to additional parameters

Handles each object found by L_ObjectCounter function.




A rectangle structure used to specify the area where the object exists.


A two dimensional array represents the information about the object shape.


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_ObjectCounter function).


Keep in mind that this is a void pointer, which must be cast to the appropriate data type within your callback function.



The function was successful.

< 1

An error occurred. Refer to Return Codes.


This function is used to control a part of the image where the object was found.

L_ObjectCounter supports only 1-bit images. The callback should reflect that if there are any operations on the image itself.

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.

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