System.Object
EPLAN.Harness.API.ApiObject
EPLAN.Harness.API.Projects.Documents.ProjectEntity
EPLAN.Harness.API.Projects.Documents.Document
EPLAN.Harness.API.Projects.Documents.RevisionableDocument
EPLAN.Harness.API.Projects.Documents.GraphicDocument
EPLAN.Harness.API.Projects.Documents.Drawing2D
EPLAN.Harness.API.Projects.Documents.Nailboard