Event Statement
Declares the signature for an event handler.
Syntax
Event event_name [ type_list ] [ parameter_list ] [ Where constraints ]
Parts
event_name- Mandatory name for the event
type_list- Optional. See Type List for more information.
parameter_list- Optional one or more variable declarations with a comma between each. See Parameter List for more information.
constraints- Optional. See Where Clause (Generics) for more information.
Instructions
event_name is a type that can be used in a parameter passed to a constructor or method.
Such procedures must be passed the name of a procedure of type Sub that has a signature that agrees with that specified by parameter_list.
Examples
In a library module
Event WindowCloseEvent(#win As Window)
' ...
Dim closer as WindowCloseEvent
' ...
Method WhenClose(evt As WindowCloseEvent)
closer = evt
End Method
In the program module
' Set the window's close event handler
#w.WhenClose Sub Quit
Sub Quit Handles WindowCloseEvent
' The "Handles" clause is the same as
' Sub Quit(#win As Window)
#win.Close
End Sub