Hi all,

A customer raised a complain about whenever he tabs out of any tree control
in our product, the speaker would make the "Warning" sound. Since I always
program with my speakers off, I had never noticed such behavior. After a bit
investigation, it seems that this behavior happens to all treeviews in all
VDF programs. The easiest reproducible example would be dbExplorer. Put the
focus in the tree, then tab, you will get that annoying beep. Has anyone got
a fix for that? (Telling our customers to turn off their speakers or getting
rid of the system warning sound is not an option) Other programs written in
other languages don't exhibit this weird behavior.

Thanks in advance,

Frank Cheng