5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
<p>This feature is always disabled by default. Clients must make an explicit call to this function with a &lsquo;filter&rsquo; value other than <a href="ft2-lcd_filtering.html#FT_LcdFilter">FT_LCD_FILTER_NONE</a> in order to enable it.</p>
<p>Due to <b>PATENTS</b> covering subpixel rendering, this function doesn't do anything except returning &lsquo;FT_Err_Unimplemented_Feature&rsquo; if the configuration macro FT_CONFIG_OPTION_SUBPIXEL_REND