L_VecSetLayer

Summary

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

Syntax

L_LVKRN_API L_INT L_VecSetLayer(pVector, pLayer, pLayerDesc)

Parameters

pVECTORHANDLE pVector

Pointer to the vector handle.

const pVECTORLAYER pLayer

Pointer to a VECTORLAYER structure that references the vector layer to set.

const pVECTORLAYERDESC pLayerDesc

Pointer to a VECTORLAYERDESC structure that contains the new layer information to set.

Returns

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

• LTVKRN
• 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_VecGetLayer
• L_VecFreeLayer.

Topics

• Working with Vector Layers

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; 
}