L_VecSetLayer

#include "lvkrn.h"

L_LVKRN_API L_INT L_VecSetLayer(pVector, pLayer, pLayerDesc)

pVECTORHANDLE pVector;	pointer to a vector handle
const pVECTORLAYER pLayer;	pointer to a vector layer
const pVECTORLAYERDESC pLayerDesc;	pointer to a structure

Updates a vector layer with new information. This function is available in the LEADTOOLS Vector Imaging Pro Toolkit.

Parameter	Description
pVector	Pointer to the vector handle.
pLayer	Pointer to a VECTORLAYER structure that references the vector layer to set.
pLayerDesc	Pointer to a VECTORLAYERDESC structure that contains the new layer information to set.

Returns

SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

For more information on the layer information that can be set, refer to the VECTORLAYERDESC structure.

To get the layer information for a specific layer, use the L_VecGetLayer function.

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.

Example

This example will make the layer with the given name locked from changes.

L_INT VecSetLayerExample( 
pVECTORHANDLE pVector, 
const L_TCHAR* pszName) 
{ 
   VECTORLAYER       Layer; 
   VECTORLAYERDESC   LayerDesc; 
   L_INT             nRet; 
   /* find the layer with that name */ 
   nRet = L_VecGetLayerByName( pVector, pszName, &Layer ); 
   if( nRet != SUCCESS ) 
      return nRet;  /* layer not found */ 
   /* get this layer for editing */ 
   nRet = L_VecGetLayer( pVector, &Layer, &LayerDesc ); 
   if(nRet != SUCCESS) 
      return nRet; 
   /* lock the layer */ 
   LayerDesc.bLocked = TRUE; 
   /* set back and clean up */ 
   nRet = L_VecSetLayer( pVector, &Layer, &LayerDesc ); 
   if(nRet != SUCCESS) 
      return nRet; 
   nRet = L_VecFreeLayer( &LayerDesc ); 
   return nRet; 
}

Help Version 19.0.2017.10.27

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LEADTOOLS Vector C API Help

Introduction

Version History

LEADTOOLS Vector Features

Redistributables/Files To Be Included With Your Application

Functions:	L_VecGetLayer, L_VecFreeLayer.
Topics:	Working with Vector Layers