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The event '''on.timer''' is fired when a [[:Category:timer|timer]] is run (called periodically according to the period set in [[timer.start]])
It has no argument.
== Example ==
Below is an example of a program that displays a message for 1 second when a key is pressed.
<source lang="lua">
function on.paint(gc)
if message then
gc:setFont("sansserif", "r", 10) -- initialize font drawing
gc:drawString(message, 0, 0, "top") -- display the message at (0, 0) coordinates
message = nil -- erase the message
timer.start(1) -- start a timer to exit on.paint() but keep in mind that we have to redraw the screen
end
end
function on.timer()
timer.stop()
platform.window:invalidate()
end
function on.charIn(ch)
message = "Hello World !" -- store a message
platform.window:invalidate() -- force display
end
</source>
Check out the [http://inspired-lua.org/index.php/2011/05/linking-events/ the full explanation of this example] in the tutorials part.
[[Category:Events]]
[[Category:Events]]
