Determines whether the list box displays the partial items.
property IntegralHeight: Boolean;
IntegralHeight controls the height of the list box itself.
When IntegralHeight is True, and the ListStyle property is lsOwnerDrawFixed, the list box height will always be a multiple of the ItemHeight property value. In this case, items will never be partially displayed.
If IntegralHeight is False, the list box height can be set to any value, but the last item may not be fully displayed.
If the ListStyle property value of the list box is lbOwnerDrawVariable, setting the IntegralHeight property to True has no effect.