As far as I know, the search was not implemented before svn r5028.
That means if you use C::B 8.02 it can not work.
EDIT:
Does not work for me on windows anyway.
That's right. I too noticed that it doesn't work on windows (event not generated).
Thanks for fixing it.
I also tried to add wxTE_PROCESS_ENTER to the stylelist, but did it inside the xrc-file. And stumbled over a bug in wxSmith (wxTE_PROCESS_ENTER missing from the list of known styles) that was easy to fix and after some research I also found a bug in wxWidgets (the style is documented, but the xml-resource loader ignores it for wxComboBox).
A bugreport for this bug exists, but was closed 10 months ago. But the fix never made it from trunk to branch2.8.
After reopening the bugreport it was fixed in less than one hour
.
So this bug will hopefully be fixed in the next release of wx2.8 (and following versions).