Forces buffer to analyze and highlight the given area synchronously.
<note>
<para>
This is a potentially slow operation and should be used only
when you need to make sure that some text not currently
visible is highlighted, for instance before printing.
</para>
</note>
Forces buffer to analyze and highlight the given area synchronously.
<note> <para> This is a potentially slow operation and should be used only when you need to make sure that some text not currently visible is highlighted, for instance before printing. </para> </note>