signal in menus

["Luiz Rafael Culik Guimaraes" <luiz xharbour com br>]

Hi

I has an small question.

On  menus, does exist any signal to tell that my current selection (with out 
selection then , only the focus) has changes to the next item

some thing similar to mozilla firefox history menu ( for each menu item, it 
show an description on the status bar)

Regards
Luiz