Specifies wrapping modes for the text annotation box. Dimensions of the text annotation box can be adjusted automatically according to annotation content.

Values:

IG_ART_WRAP_NONE	No adjustment of text box dimensions is required.
IG_ART_WRAP_HORIZONTAL	Text box width is adjusted to fit the text size.
IG_ART_WRAP_VERTICAL	Text box height is adjusted to fit the text size.