Can not get correct fontindex

Dear sir,

When I open a ppt that created within PowerPoint 2003 to get a Portion write in Chinese.I can not get the correct fontindex of the Portion.If there is a pptx that created by PowerPoint 2007 then the control can get correct fontindex of the Portion.

How can I get it?

Hi Lianjl,

Can you please provide the source PPT for investigation?