Hi Matt,
Yes, you certainly should be able to do this.. It sounds like the equation
isn't finding the display for some reason. Try this:
GetValue( "DisplayName", "FillColor" )
In other words, nix the AnalysisWindow name. As long as the display name is
unique for the entire desktop, the equation should find the display.
Technically, the ParmType for the derived equation should be set to
"discrete" by the way. Color properties are 32 bit unsigned int. But don't
worry about it.... Iads should convert it no matter what type you set the
equation so float/in/discrete should all work.
If you are still having a problem, double/triple check the display name and
it's spelling. If you're off by one character it will cause a failure.
Let me know how that goes. We still have other experiments to try,
Jim