scroll_bar->event

Documentation
- Reference manual
- Packages
  - XPCE
    - Classes
      - class scroll_bar
        
        Send methods
        
        scroll_bar->length
        
        scroll_bar->start
        
        scroll_bar->view
        
        scroll_bar->bubble
        
        scroll_bar->compute
        
        scroll_bar->event
        
        scroll_bar->initialise
        
        scroll_bar->place

scroll_bar ->event: event

Operate the scrollbar The exact definition depends on scroll_bar<-look. After user-interaction that should affect the scrolled scroll_bar<-object, the scroll_bar object determines -direction, -unit and -amount. Next:

Invoke scroll_bar->scroll_vertical: -direction, -unit, -amount on the associated scroll_bar<-object if scroll_bar<-orientation is vertical and scroll_bar->scroll_horizontal otherwise. If this method is understood and succeeds the event is considered handled. See, for example, window->scroll_vertical
Else, forward using the associated scroll_bar<-message.