Help Version 19.0.2017.10.27
References ▼
#include "lvkrn.h"
L_INT pEXT_CALLBACK YourFunction (pVector, pObject, pUserData)
pVECTORHANDLE pVector; |
pointer to a vector handle |
pVECTOROBJECT pObject; |
pointer to a vector Object |
L_VOID * pUserData; |
pointer to additional parameters |
Processes each vector object enumerated by the L_VecEnumObjects or L_VecEnumObjectsInLayer functions.
Parameter |
Description |
pVector |
Pointer to the vector image containing the objects to enumerate. |
PObject |
Pointer to the vector object 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. |
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
The L_VecEnumObjects function or the L_VecEnumObjectsInLayer function calls your callback function as it gets the handle of each vector object.
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. |