L_LVKRN_API L_INT L_VecEmptyLayer(pVector, pLayer)
Empties the specified layer. This function is available in the LEADTOOLS Vector Imaging Pro Toolkit.
Pointer to the vector handle.
Pointer to a VECTORLAYER structure that references the layer to be emptied.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
The specified layer is emptied by deleting all objects within that layer.
To delete a layer, call L_VecDeleteLayer.
Required DLLs and Libraries
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;
}