Size_control event of container objects

Hi,

I have a splitter container. I have derived two A & B containers from it. I have programmed the B container to fire the size_control event when the splitter of the splitter container is moved up and down thereby changing its size. however, it never fires. Is there something specific that needs to be done over here.

I have registered the EVENT_SIZE event for the derived container B.

In other words, i want to catch the event when the splitter of the spliter container is moved up/down, left/right.. In my opinion, moving the splitter should result in the change of size of the container B contained within which should ultimately fire the size_control event.

Am i missing something here or is there any other way to do it.

Any advice would be highly appreciated.

Regards,

Ghufran