XPUSelectIfNeeded

WIDGET_API int        XPUSelectIfNeeded(
                         XPWidgetMessage      inMessage,    
                         XPWidgetID           inWidget,    
                         intptr_t             inParam1,    
                         intptr_t             inParam2,    
                         int                  inEatClick);    

This causes the widget to bring its window to the foreground if it is not already. inEatClick specifies whether clicks in the background should be consumed by bringin the window to the foreground.