LVectorLayer::DeleteLayer

#include "ltwrappr.h"

virtual L_INT LVectorLayer::DeleteLayer(L_VOID)

Deletes the class object's associated layer. This function is available in the LEADTOOLS Vector Imaging Pro Toolkit.

Returns

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

Comments

Deleting a layer also deletes all objects within the layer.

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 delete the second layer in a vector.

L_INT LVectorLayer__DeleteLayerExample(HWND hWnd, LVectorBase *pVector) 
{ 
   UNREFERENCED_PARAMETER(hWnd); 
   L_INT          nRet; 
   LVectorLayer   VectorLayer; 
   nRet = pVector->GetLayerByIndex(1, &VectorLayer); 
   if (nRet == SUCCESS) 
   { 
      nRet = VectorLayer.DeleteLayer(); 
      if(nRet != SUCCESS) 
         return nRet; 
   } 
   else 
   { 
      MessageBox(hWnd, TEXT("Vector has less than two layers"), TEXT(""), MB_OK); 
      return nRet; 
   } 
   return SUCCESS; 
}

Help Version 19.0.2017.10.27

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LEADTOOLS Vector C++ Class Library Help

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Appendix

Functions:	LVectorBase::AddLayer, LVectorLayer::EmptyLayer.
Topics:	Working with Vector Layers