heya nml

this time i need help with tk again (those manpages make me crazy by now -.- ew ew ), in case of more windows (more toplevels) i want to know how to lock the lower ones.
example:
main window has a button called "launch", you click on it and another (new) window (lets call it window2) is being launched which shows up. but still - you are able to work with the main window while working with the window2. of course im able to catch possible errors so problems like "toplevel xyz already exists" and so on wont even come up. for me, as the programmer, i understand how to use the application but eventually the people who are going to use it wont also be so sure about certain things and probably run into things they dont want because they dont know it like that from other apps.
ok .. lots of bla bla from my side, someone please guide me
