#include "ltwrappr.h"
virtual L_INT LVectorBase::CopyLayer(pVectorLayerDst, pVectorLayerSrc, dwFlags=0);
LVectorLayer * pVectorLayerDst; |
pointer to the destination layer object |
LVectorLayer * pVectorLayerSrc; |
pointer to the source layer object |
L_UINT32 dwFlags; |
copy flags |
Copies the contents of one layer to another.
This function is available in the LEADTOOLS Vector Imaging Pro Toolkit.
Parameter | Description | |
pVectorLayerDst | Pointer to an LVectorLayer object that points to the destination layer. Pass NULL to copy the source vector layer into the active layer. | |
pVectorLayerSrc | Pointer to an LVectorLayer object that points to the source layer. This parameter cannot be NULL. | |
dwFlags | Flag that indicates whether or not to empty the destination layer before copying. Possible values are: | |
Value | Meaning | |
0 | Do not empty the destination layer before copying. | |
VECTOR_FLAGS_REPLACE | Empty the destination layer before copying. |
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
The destination layer can be in the same vector handle as the source layer, or it can be in a different vector handle.
An LVectorLayer object can be obtained by calling LVectorBase::EnumLayers, LVectorBase::GetLayerByName or LVectorBase::GetLayerByIndex.
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. |
Functions: |
LVectorBase::AddLayer, LVectorLayer::GetLayerDesc, LVectorBase::GetLayerByName, LVectorBase::GetLayerByIndex |
Topics: |
This example will copy the first layer (and objects) from a vector into the active layer of pVector.
#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName
L_INT LVectorBase__CopyLayerExample(HWND hWnd, LVectorBase *pVector)
{
UNREFERENCED_PARAMETER(hWnd);
L_INT nRet;
LVectorLayer VectorLayer;
//Load a source vector
LVectorBase VectorSrc;
nRet = VectorSrc.Load(MAKE_IMAGE_PATH(TEXT("random.dxf")));
if(nRet != SUCCESS)
return nRet;
//Get first layer of source
nRet = VectorSrc.GetLayerByIndex(0, &VectorLayer);
if(nRet != SUCCESS)
return nRet;
//Copy layer and objects into pVector active layer
nRet = pVector->CopyLayer(NULL, &VectorLayer);
if(nRet != SUCCESS)
return nRet;
return SUCCESS;
}