How to create a feature dataset

This sample will demonstrate the steps needed to create a new feature dataset in a geodatabase. The function does not require that the spatial reference be supplied, however it is recommended that the appropriate spatial reference is used when creating data. [VCPP]

//
//
// createDataset:  creates a dataset in a workspace
// ISpatialReference is optional but should generally be defined by the caller
//
HRESULT createDataset(BSTR name, IWorkspace *workspace, IFeatureDataset
  **ppOutFeatureDataset, ISpatialReference *pSpatialReference)
{
  if (!workspace || !name)
    return E_POINTER;

  if (ppOutFeatureDataset == NULL)
    return E_POINTER;

  HRESULT hr;

  // establish the spatial reference if the caller took advantage of optional parameter
  CComPtr < ISpatialReference > ipSRef=pSpatialReference;
  if (!ipSRef)
  {
    ipSRef.CoCreateInstance(CLSID_UnknownCoordinateSystem);
    ipSRef->SetDomain(0, 21474.83645, 0, 21474.83645);
    ipSRef->SetFalseOriginAndUnits(0, 0, 100000);
    ipSRef->SetMDomain(0, 21474.83645);
    ipSRef->SetZDomain(0, 21474.83645);
    ipSRef->SetZFalseOriginAndUnits(0, 100000);
  }

  CComPtr < IFeatureWorkspace > ipFeatWksp;
  if (FAILED(hr=workspace->QueryInterface(&ipFeatWksp)))
    return hr;

  return ipFeatWksp->CreateFeatureDataset(name, ipSRef, ppOutFeatureDataset);
}

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