Events declaration
EVENT Name ( [ Parameter #1 [ , Parameter #2 ... ] )
This declares a class event. This event is raised by using the
RAISE keyword.
The
RAISE keyword may return a boolean value to indicate if the event handler wants to cancel the event.
Examples
EVENT BeforeSend(Data AS String)
...
DIM bResult AS Boolean
' Raises the event
bResult = RAISE BeforeSend("MyData")
IF bResult THEN
PRINT "Canceled !"
ENDIF
Event Handler
By default,
Name_EventName is the name of the method called in the event listener when an event is raised.
For example, if you have a class called FancyButton and you throw an event called FancyClick, and if in your form called FMain you have a FancyButton object named MyButton, the event handler method would look like this:
PUBLIC SUB MyButton_FancyClick(...)
The default behavior can be changed somewhat: see
Object.Attach and other methods of the static
Object class, as well as control groups whose information is applicable to any event-raising class.
See also