Changes visual element properties. This method accesses CurrentElements, so it must be called only during a Transform(ITextRunConstructionContext, IList<(Of <<'(VisualLineElement>)>>)) call. This method splits VisualLineElements as necessary to ensure that the region can be colored by setting the TextRunProperties of whole elements, and then calls the action on all elements in the region.

protected void ChangeVisualElements(
	int visualStartColumn,
	int visualEndColumn,
	Action<VisualLineElement> action
)

Protected Sub ChangeVisualElements ( _
	visualStartColumn As Integer, _
	visualEndColumn As Integer, _
	action As Action(Of VisualLineElement) _
)

protected:
void ChangeVisualElements(
	int visualStartColumn, 
	int visualEndColumn, 
	Action<VisualLineElement^>^ action
)