Hi! I have used a text widget and now it works.

My intention was to show the log file on a window, so I had to create a little function to enable, write and then disable the widget, but it was pretty easy. So I woud like to thank you for your help and thank everybody who tried to help me!

Now I've got another question but it's about a totally different subject, so I'm going to post it with another title. Bye!