How do I disable frame/window focusing?

When I call my ModalAsNewProcess module, which creates a busy spinner and possibly progress Gauge in a new process, I am trying to emulate the FRAME_FLOAT_ON_PARENT style.

First I Enable(False) on the ‘parent’ Frame (it’s not really the parent though, since they’re separate processes), but the parent can still receive focus, and will cause the popup spinner to be placed under the ‘parent’.

Here is my demo code:

http://pastebin.com/ZWKMeABY

and the GIF I’m using

http://commons.wikimedia.org/wiki/File:Spinning_wheel_throbber.gif

Trying to raise the ‘modal’ afterwards doesn’t seem to work either.