Flash External API

F-IN-BOX supports the Flash External API. This enables two-way communication:

Applications can call ActionScript functions inside a Flash movie.
Flash movies can synchronously call functions exposed by the host application.

This mechanism works instead of the legacy fscommand approach.

Call an ActionScript Function from an Application

First, register a function in the Flash movie using ExternalInterface.addCallback:

import flash.external.*;   
  
ExternalInterface.addCallback("CallMeFromApplication", this, InternalFunction);   
  
function InternalFunction(str: String): String {   
   TextArea1.text = str;   
   return "The function was called successfully";   
}

Then call the ActionScript function from the application using CallFunction:

Delphi Example:

var  
   Response: WideString;   
begin  
   Response := FlashPlayerControl1.CallFunction('Some text for TFlashPlayerControl');   
   ShowMessage(Format('The function returned: %s', [Response]));   
end;

C++Builder Example:

WideString Response = FlashPlayerControl1->CallFunction("Some text for TFlashPlayerControl");   
ShowMessage("The function returned: " + Response);

Call an Application Function from a Flash Script

From ActionScript, call an application function using flash.external.ExternalInterface.call:

on (click) {   
   _root.TextArea1.text = flash.external.ExternalInterface.call("SomeFunction");   
}

Handle the call in the application with the OnFlashCall event and provide a return value using SetReturnValue:

Delphi Example:

procedure TMainForm.FlashPlayerControl1FlashCall(ASender: TObject; const request: WideString);   
begin  
   FlashPlayerControl1.SetReturnValue('Current time is: ' +   
                                      TimeToStr(Time) + #13#10 +   
                                      'This info is returned by application');  
end;

C++Builder Example:

void __fastcall TMainForm::FlashPlayerControl1FlashCall(TObject *ASender, const WideString request)   
{   
   FlashPlayerControl1->SetReturnValue("Current time is: " +   
                                       TimeToStr(Time()) +   
                                       "\r\nThis info is returned by application");   
}