ContainerProperties.GetMemberState Method (Visio)
Returns the membership state of the specified shape with respect to the container shape.
GetMemberState can return one of the following VisContainerMemberState constants.
The shape is not a member of the container.
The member shape is within the bounds of the container.
The member shape is on the boundary of the container.
The member shape is outside the bounds of the container.
The member shape is a list member.