How do I get shapes in a swimlane shape object from visio automation?

Question

I am using office automation to convert visio files to a specified xml format flowchart, and I need use the swimlane data as container of workflow process . so how can I get the relation between workflow shapes and swimlane ?

CODE

IVisio.Shape shape = o as IVisio.Shape;

double width = shape.Cells["Width"]
        .Result[Microsoft.Office.Interop.Visio.VisUnitCodes.visMillimeters];
double height = shape.Cells["Height"]
        .Result[Microsoft.Office.Interop.Visio.VisUnitCodes.visMillimeters];
double pinX = shape.Cells["PinX"]
        .Result[Microsoft.Office.Interop.Visio.VisUnitCodes.visMillimeters];
double pinY = shape.Cells["PinY"]
        .Result[Microsoft.Office.Interop.Visio.VisUnitCodes.visMillimeters];

Answer 1

To find the container relation can use the API with this method:

public class ShapeWrapper
{
    public IVisio.Shape Shape { get; set; }

    private List<ShapeWrapper> children = new List<ShapeWrapper>();
    public List<ShapeWrapper> Children { get { return this.children; } }

    public ShapeWrapper(IVisio.Shape shape)
    {
        Shape = shape;
    }
}

private void FindChildren(ShapeWrapper shapeWrapper, 
                              List<IVisio.Shape> addedShapes)
{
    IVisio.Selection children = shapeWrapper
       .Shape.SpatialNeighbors[
            (short)IVisio.VisSpatialRelationCodes.visSpatialContain, 
            0,
            (short)IVisio.VisSpatialRelationFlags.visSpatialFrontToBack];

    foreach (IVisio.Shape child in children)
    {
        if (!addedShapes.Contains(child))
        {
             //MessageBox.Show(child.Text);
             ShapeWrapper childWrapper = new ShapeWrapper(child);
             shapeWrapper.Children.Add(childWrapper);

             FindChildren(childWrapper, addedShapes);
        }
    }
}