wxID_ABOUT event problem on MacOSX

[Bengt Nilsson]

Hi!

I am using MacOSX 10.4.8, wxWidgets 2.6.3.
I am trying to build a document-like application with DialogBlocks,  
using a top wxDocParentFrame. I am also following the "Document/View"  
example int the book "Cross-Platform GUI Programming with wxWidgets".
My problem is that the app does not respond correctly to the  
Application menu About.. command, nothing happens.
The placement of the About.. on MacOSX is different compared to  
Windows, and I guess, Linux.
It is (automatically) placed in an already existing menu when I add  
the menubar, and I have not explicitly given it any event, because I  
do not know how to do that.
The only thing I have doen is to create a wxMenuBar,  and put a File  
menu with intem Open.. in it. Then About.. appeared automatically.
Is there any special trick  or problem using wxID_ABOUT event on MacOSX?


Bengt Nilsson