This is a very curious primitive. First, there are no senders so I have to wonder if it is actually of any value.
Secondly, just what is it supposed to do? Setting the fullscreen flag to true and the width or height to some number not equal to the full screen size does what exactly? Should the prim ignore w & if fullscreen = true? Setting the depth should do what? It can't set the depth of the Display object - that has to be done via methods like DisplayScreen>setExtent:depth:. I suppose it could possibly set the bitdepth of the OS window buffer (where one is used) but that seems like it is private to the VM.
I can see a value in having a prim that programmatically sets the window size (which is why I ended up looking at this) but I don't think this prim is entirely suitable nor even properly defined nor even widely implemented. Any thoughts anyone?
tim