Bug with NSWindow's addChildWindow: and removeChildWindow: ?

[Fabian Schuiki]

Hi,

I'm using addChildWindow: and removeChildWindow: to create sort of a  
window cascade. The problem is that if I connect a couple of windows  
usign addChildWindow: and then rip the cascade apart somewhere in the  
middle, the ripped off windows behave quite strange, i.e. the window  
ordering doesn't work anymore (upper window is throwing shadows upon  
the other).

Is this a known bug?
Here a few screenshots to illustrate the problem:

I have a couple of windows:


Which I connect to each other (i.e. using addChildWindow: to create a  
cascade):


And when I rip off the lower two windows (i.e. calling the topmost's  
removeChildWindow: with the window in the middle as argument) the  
ripped off windows start to behave quite strange:


I can rearrange the window order by clicking the window which causes  
ulgy shadows.


Would it be the best to re-create the window cascade everytime i rip  
something off?

Best,
Fabian

Fabian Schuiki
fabianschuiki at bluewin.ch