Events
OnEvent
is a function that returns keys to use when hydrating or creating an
instance. Those keys let you connect functions to events on the instance.
local button = scope:New "TextButton" {
[OnEvent "Activated"] = function(_, numClicks)
print("The button was pressed", numClicks, "time(s)!")
end
}
Usage¶
OnEvent
doesn't need a scope - import it into your code from Fusion directly.
local OnEvent = Fusion.OnEvent
When you call OnEvent
with an event name, it will return a special key:
local key = OnEvent("Activated")
When that key is used in a property table, you can pass in a handler and it will be connected to the event for you:
local button = scope:New "TextButton" {
[OnEvent("Activated")] = function(_, numClicks)
print("The button was pressed", numClicks, "time(s)!")
end
}
If you're using quotes '' ""
for the event name, the extra parentheses ()
are optional:
local button = scope:New "TextButton" {
[OnEvent "Activated"] = function(_, numClicks)
print("The button was pressed", numClicks, "time(s)!")
end
}