Motif was pretty horrific to program. It was full of what we would recognize as pointer abuse today. I was always a little upset when Gtk took off in the late

Motif was pretty horrific to program. It was full of what we would recognize as pointer abuse today. I was always a little upset when Gtk took off in the late 90s, because it had a bunch of similar pointer abuse. It seemed to be heavily influenced by Motif. Qt seemed much better at the time. Java UI (Swing) clearly seemed a big step forward at the time. Tk was pretty nice at the time. A lot of the X stack back then had this kind of stuff. At some point it probably got cleaned up.