width="87%"><tr><td>
<p>An opaque pointer type that is used to identity face objects. The contents of such objects is application-dependent.</p>
<p>These pointers are typically used to point to a user-defined structure containing a font file path, and face index.</p>
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<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
<p>Never use NULL as a valid <a href="ft2-cache_subsystem.html#FTC_FaceID">FTC_FaceID</a>.</p>
<p>Face I