The offset is a two-dimensional vector from left bottom corner of the viewport with Rotation set to None to the left end of the viewport label line. The Z coordinate is ignored.

public XYZ LabelOffset { get; set; }

Public Property LabelOffset As XYZ
	Get
	Set

public:
property XYZ^ LabelOffset {
	XYZ^ get ();
	void set (XYZ^ value);
}