ntaining the bitmap, after increasing its reference count. This ensures that the node (as well as the image) will always be kept in the cache until you call <a href="ft2-cache_subsystem.html#FTC_Node_Unref">FTC_Node_Unref</a> to &lsquo;release&rsquo; it.</p>
<p>If &lsquo;anode&rsquo; is NULL, the cache node is left unchanged, which means that the bitmap could be flushed out of the cache on the next call to one of the caching sub-system APIs. Don't assume that it is persistent!</p>
</td></tr></table>
</td