Event XbpToolBar():buttonDropDown

A tool bar button's menu has been dropped down.

:buttonDropDown := {| oButton,uNil,self | ... }
:buttonDropDown( <oButton> ) --> self
xbeTBAR_ButtonDropDown (1049229)

Parameter <oButton> contains a reference to the XbpToolBarButton object that defines the menu.

This method returns the object executing the method (self).

The xbeTBAR_ButtonDropDown notification is generated when the user selects the drop-down arrow of a tool bar button. Drop-down menu buttons are defined by assigning the XBPTOOLBAR_BUTTON_DROPDOWN style to a tool bar button's :style instance variable.

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Event XbpToolBar():buttonDropDown Foundation