AS2 addCallback Type mismatch.

Question

So I don't get this at all. When I put

ExternalInterface.addCallback('startppt', null,"PlayPPT");

I get Type mismatch. However if i put

ExternalInterface.addCallback('startppt',"PlayPPT");

It takes it fine. Doesn't work when I try to call the function. I used JQuery, normal Javascript just about everything. I think it has something to do with this issue but not certain. THIS IS ACTIONSCRIPT 2 and I check the publishing settings. Any ideas or suggestions would be awesome thanks!

Answer 1

I realized that it should be

ExternalInterface.addCallBack('startppt', null, PlayPPT);

It wasn't the null as mismatch it was the last part I was sending a string when it was expecting a function.