OBJECTCOUNTERCALLBACK (original) (raw)

Summary

Handles each object found by L_ObjectCounter function.

Syntax

#include "l_bitmap.h"

L_INT EXT_CALLBACK YourFunction (rcRect, pObject, pUserData)

Parameters

L_RECT rcRect

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

L_INT ** pObject

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

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_ObjectCounter function).

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

Returns

Comments

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

• 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_DeleteObjectInfo
• L_EndFastMagicWandEngine
• L_FastMagicWand
• L_ObjectCounter
• L_SetBitmapRgnMagicWand

Topics

• Raster Image Functions: Image Analysis
• Support Functions: Callbacks

Example

For an example, refer to L_ObjectCounter.

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