Amazing, unless you wanted to resize the window that is.

My favorite in that regard was Interface Builder, though I must admit it's been so long since I wrote MacOSX software that I haven't had use for it in ages.

The ability to drop components in and then move the window around and have them respond as they will in the live program was peak WYSIWYG UI editing. I have not experienced better and I doubt I will.

Dude,you could easily resize. There was the MDI form as well. You could snap controls to a fixed width to the edge of the window. VB6 is hanging out in the cooldown tent while the rest of front end tech stack still has laps to go.

I know you could resize, but it didn't have layouts like Qt has, so the content of the window would not resize :D

delphi had that sorted

VB6 UIs are the color of getting work done. ;)