[Rubycocoa-talk] Undefined constants?

[Dave H. <gr...@gr...>]

I'm trying to put images on an otherwise blank screen. The following  
code should do that, however, it errors out with "uninitialized  
constant OSX::NScreenSaverWindowLevel" if the two lines that are  
commented out are enabled.

class PictureDisplay < OSX::NSWindowController
	def init()
		screenRect = OSX::NSScreen.screens.objectAtIndex(0).frame
		mainWindow = OSX::NSWindow.alloc
		displayScreen = OSX::NSScreen.screens.objectAtIndex(0)
		windowMask = OSX::NSBorderlessWindowMask
		windowBacking = OSX::NSBackingStoreRetained
		 
mainWindow.initWithContentRect_styleMask_backing_defer_screen(screenRect 
, windowMask, windowBacking, nil, displayScreen)
		#windowLevel = (OSX::NSWindow::NScreenSaverWindowLevel) # this fails
		#mainWindow.setLevel(windowLevel)
		mainWindow.setBackgroundColor(OSX::NSColor.blackColor)
		mainWindow.makeKeyAndOrderFront_
		return self
	end
end
	
How do I get those constants defined?