Multiple Monitors and MacOS X

This is my sample Code:

Import chaos.desktopext
Import maxgui.drivers

Print desktopcount()
For Local i:Int = 0 To DesktopCount ()
   Print "Display "+i+" is at position "+DesktopX(i)+","+DesktopY(i)+","+DesktopWidth(i)+","+Desktopheight(i)
Next
Local Xp:Int = DesktopX(0) + (DesktopWidth(0)) 'use 0 to enshure primary display
Local Yp:Int = DesktopY(0) + (DesktopHeight(0)) 'use 0 to enshure primary display
Local Windowp:TGadget = CreateWindow ("hello", Xp, Yp, 100, 100)

Local Xs:Int = DesktopX(1) + (DesktopWidth(1)) 'use 0 to enshure primary display
Local Ys:Int = DesktopY(1) + (DesktopHeight(1)) 'use 0 to enshure primary display
Local Windows:TGadget = CreateWindow ("hello", Xs, Ys, 100, 100)


Delay 10000

First i get the screen resolution of the primary Monitor
after that the screen resolution of the secoundary Monitor
then i will open a window on monitor 1 and on monitor 2, but it open both windows on the primary monitor.

Any idea?