Should be working now. A silly little bug. "Time flies like an arrow. Fruit flies like a banana."

Thanks! This is the info where I was looking for!

I need this database to contain meta-data for a language parser. With a lexicon with 8000 words, 8000 embeded MP3 and 60 video-files.

Thanks for reply. "Years ago" I have only to deal with visibility. With the mouse you can click them all. But today people like to foul the screen with their fingers. It seems that the API GetDeviceCaps did not work right with the new Windows Display Driver Model (WDDM) beginning with Windows Vista. I found out a way to get the screen driver info from registry but that don't work for old XP. I hope OS gets an upgrade to better support touchable objects for native desktop applications.

the comment delimiters only used by IDE(vc6.0) , so when you add code manually, you can add code in anywhere. and you can remove the comment delimiters, but the IDE class warized will can't use!