L_VecGetLayerByIndex

#include "lvkrn.h"

L_INT EXT_FUNCTION L_VecGetLayerByIndex(pVector, nIndex, pLayer)

const pVECTORHANDLE pVector;

/* Pointer to the vector handle */

L_INT nIndex;

/* Index */

pVECTORLAYER pLayer;

/* pointer to a vector layer */

Gets the layer at the specified index in the specified vector handle.

Parameter

Description

pVector

Pointer to the vector handle.

nIndex

Index of the requested layer. This index is zero-based. Possible values are between 0 and L_VecGetLayerCount - 1.

pLayer

Pointer to a VECTORLAYER structure to be updated with the layer handle, if the layer is found.

Returns

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

Comments

To determine the number of layers in a vector handle, call L_VecGetLayerCount.

To get a layer, given the name of the layer, use L_VecGetLayerByName.

To get layer information for a specific layer, call L_VecGetLayer.

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_VecGetLayerCount, L_VecGetLayerByName, L_VecGetLayer.

Topics:

Working with Vector Layers

Example

For an example, refer to L_VecGetLayerCount.