Thanks Yura, this solved my problem! Do I have to destroy or delete also, to balance create? Christer Kloubakov Yura wrote: > Christer, > > You have to explicitly call "create" for the new icon to > create the server side object. Fox does it automatically > for all the objects it can see at the time "create" is > called for the FXApp object if I remember correctly. > >> begin >> >> ... >> >> doc = makeIcon("minidoc.png") > > doc.create > >> @tree.currentItem.text = "new icon coming ..." >> @tree.currentItem.closedIcon = doc # crash! >> >> I had no problem adding icons when the TreeItem was constructed. >> >> I'm using fox14. >> >> Christer > > Yura. -- Posted via http://www.ruby-forum.com/.