L_VecEmptyLayer

#include "ltvkrn.h"

L_LTVKRN_API L_INT L_VecEmptyLayer(pVector, pLayer)

Empties the specified layer. This function is available in the LEADTOOLS Vector Imaging Pro Toolkit.

Parameters

pVECTORHANDLE pVector

Pointer to the vector handle.

const pVECTORLAYER pLayer

Pointer to a VECTORLAYER structure that references the layer to be emptied.

Returns

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

Comments

The specified layer is emptied by deleting all objects within that layer.

To delete a layer, call L_VecDeleteLayer.

Required DLLs and Libraries

See Also

Functions

Topics

Example

This example will delete all objects inside the layer with the given name.

L_LTVKRNTEX_API L_INT VecEmptyLayerExample( 
   pVECTORHANDLE pVector, 
   L_TCHAR* pszName) 
{ 
   VECTORLAYER Layer; 
   L_INT       nRet; 
 
   /* Get the layer with the given name */ 
   nRet = L_VecGetLayerByName( pVector, pszName, &Layer ); 
   if( SUCCESS == nRet ) 
      nRet = L_VecEmptyLayer( pVector, &Layer );  /* empty out */ 
 
   return nRet; 
} 

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