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. |