#include "ltwrappr.h"
virtual L_INT LVectorBase::GetLayerByIndex(nIndex, pVectorLayer)
Gets the layer at the specified index in the class object's vector handle.
Index of the requested layer. This index is zero-based. Possible values are between 0 and LVectorBase::GetLayerCount - 1.
Pointer to an LVectorLayer object to be updated, if the layer is found. If the layer is not found, this function will return ERROR_VECTOR_LAYER_NOT_FOUND.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
To determine the number of layers in a vector handle, call LVectorBase::GetLayerCount.
To get a layer, given the name of the layer, use LVectorBase::GetLayerByName.
Required DLLs and Libraries
L_INT LVectorBase__GetLayerByIndexExample(HWND hWnd, LVectorBase *pVector)
{
UNREFERENCED_PARAMETER(hWnd);
//LVectorBase Vector;
//Vector.Load("test.dxf");
L_INT nRet;
LVectorLayer VectorLayer;
L_TCHAR szMsg[100];
//Get the first layer
nRet = pVector->GetLayerByIndex(0, &VectorLayer);
if (nRet == SUCCESS)
{
VECTORLAYERDESC LayerDesc;
nRet = VectorLayer.GetLayerDesc(&LayerDesc);
if(nRet != SUCCESS)
return nRet;
wsprintf(szMsg, TEXT("Layer Retrieved\nName[%s]\nSize[%d]\nLocked[%d]\nVisible[%d]"),
LayerDesc.szName,
LayerDesc.nSize,
LayerDesc.bLocked,
LayerDesc.bVisible
);
}
else
{
wsprintf(szMsg, TEXT("Layer Not Found"));
return nRet;
}
MessageBox(NULL, szMsg, TEXT(""), MB_OK);
return SUCCESS;
}
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