Sets the number of lines for widow/orphan control. Widow/orphan control avoids that a paragraph is started at the bottom of a page and that either, the majority of its lines, or only a few lines are displayed on the next page. This property's value determines how many lines must not be separated from the rest of the paragraph. For example, if this property is set to two, there must be at least three lines of the paragraph at the bottom of the previous page and at least three lines at the top of the next page. Otherwise, the complete paragraph is displayed on the next page. If this property is set to zero, widow/orphan control is disabled.
This parameter is the number of lines for widow/orphan control.