I'm sorry, my question would be: Do you know why I don't get BACK the prompt from this program? I only test the GTK unit, beacause all example porgrams (lazarus too) need a CTRL+C to finish after closing their (all) windows (and get BACK the prompt). I use GTK 1.2.6 (1.2.8) and fpc 1.0 (1.1) . Bye!