VECTORENUMVERTICESPROC Function

#include "lvkrn.h"

L_INT pEXT_CALLBACK YourFunction (pVector, pPoint, pUserData)

pVECTORHANDLE pVector;

pointer to a vector handle

pVECTORPOINT pPoint;

pointer to a vector point

L_VOID * pUserData;

pointer to additional parameters

Processes each point enumerated by the L_VecEnumVertices function.

Parameter

Description

pVector

Pointer to the vector image containing the points to enumerate.

pPoint

Pointer to the vector point being processed.

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 the calling function.)

 

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

Returns

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

Comments

The L_VecEnumVertices function calls your callback function as it gets the handle of each vector point.

Required DLLs and Libraries

LVKRN

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_VecEnumVertices

Example

For an example, refer to L_VecEnumVertices.

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