References ▼
#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 layernRet = 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;}