pango:layout-wrap (layout)

layout -- a pango:layout object
wrap -- a value of the pango:wrap-mode enumeration

Gets or sets the wrap mode for the Pango layout. The wrap mode only has effect if a width is set on the Pango layout with the pango:layout-width function. To turn off wrapping, set the width to -1.

Use the pango:layout-is-wrapped function to query whether any paragraphs were actually wrapped.