[MACTCL] add window by clicking launcher

[Jasper T. <ja...@si...>]

Hi Folks,
Being unused to the Mac way of doing things, I often close the last 
window in my app by clicking its 'close' decoration (red X button at the 
top left). This closes the window but does not quit the application. 
After a while I may try to launch it again by clicking the app icon. At 
this point, nothing happens, causing consternation until I remember that 
I am on the Mac and actually something has happened -- my app's menu is 
now at the top of the screen. I can then open a new window from the menu.

However the normal Mac app behaviour, as far as I can tell, is to open a 
new window when the app launch action is done, if it is already running. 
It seems the way to get this to happen is to use tclAE and install an 
event handler, but so far I have not succeeded  in getting a procedure 
called by registering it with tclAE::installEventHandler. Can anyone 
give me a clue that might help?
Cheers
    --Jasper