How could I set a Flash (Actionscript 3) variable using javascript?
Or is it possible to call a flash function with parameters from javascript?
I have tried document.getElementById('flash').SetVariable("data", "asdf");but it only works in AS2 and AS1.
views:
186answers:
3
A:
SetVariable is no longer in use on AS3 because of the stricter sand-boxing, but it wasn't completely eliminated, you can still replace
SetVariable("varName","value")
By
FlashVars = "varName=value"
And access it via root.loaderInfo.parameters.varName.
However, I'd suggest using the new ExternalInterface class instead, read more about it here.
LiraNuna
2009-12-04 22:33:40
Personally think you should elaborate more on `ExternalInterface` as it is the preferred method of interactions with Flash + JS.
Doug Neiner
2009-12-04 23:29:17
@dcneiner: I'd love to, but I don't have much experience with it, so I linked to a good reference instead.
LiraNuna
2009-12-05 00:20:51
+2
A:
Like LiraNuna said, you should use ExternalInterface to communicate with flash. Here are the basics:
Step 1: Make a function in flash that sets the variable:
function setVar(value) {
somevar = value;
}
Step 2:
Use ExternalInterface to register the function:
var connection = ExternalInterface.addCallback("someFunctionName", null, setVar);
Step 3: Call your function from Javascript to set the variable:
var mySWF = document.getElementById("swfID");
mySWF.someFunctionName('some_value');
If you're using swfobject to embed your swf, another much easier option would be the addVariable method:
mySWF.addVariable("var_name", "value");
Goose Bumper
2009-12-05 06:04:25