public DocumentEventArgs(MetasequoiaEventArgs e) : base(e) { }
public UndoEventArgs(MetasequoiaEventArgs e) : base(e) { }
public MouseEventArgs(MetasequoiaEventArgs e) : base(e) { }
public DrawEventArgs(MetasequoiaEventArgs e) : base(e) { }
public SceneEventArgs(MetasequoiaEventArgs e) : base(e) { }
public BooleanEventArgs(MetasequoiaEventArgs e) : base(e) { }
public KeyEventArgs(MetasequoiaEventArgs e) : base(e) { }