10 Replies Latest reply on Aug 6, 2010 9:18 AM by Neobox75

    Launching AIR app in background


      I have an AIR app that gets launched periodically via a command line call. It's a GUI based app that needs to be actually visible and showing, but I don't want it to interrupt whoever's logged in by putting the window in front of what they're doing. I've tried calling orderToBack(); on both the WindowedApplication and the NativeWindow to no avail. I'm sure this is a common occurrence, but I can't find anything in the documentation that works.

        • 1. Re: Launching AIR app in background
          OzzyOGRicca Level 1

          Come on, nobody has any idea how to do this?

          • 2. Re: Launching AIR app in background

            Would http://livedocs.adobe.com/flex/3/langref/flash/display/NativeWindow.html#visible solve your purpose or are you looking for something else ?



            • 3. Re: Launching AIR app in background
              OzzyOGRicca Level 1

              That was one of my first tries, but because of what my app does (it loads an HTML page which itself contains another Flex application that, once fully rendered, takes a screenshot of itself and sends that data to be processed), it requires that it's actually showing. I just need it to start up either minimized, or behind other windows.

              • 4. Re: Launching AIR app in background
                rkewlani Level 2

                You have a complete event in HTMLLoader class. Can't you just set the window visible property to true once you get his complete event, do the screenshot thing & again set the window visible property to false ? That way it would just be visible for flash of a second. Would that suffice ?

                • 5. Re: Launching AIR app in background
                  OzzyOGRicca Level 1

                  That's really not ideal, as it still interrupts what the user is doing.  It'd still be visible while the app takes the screenshot and processes it, so it wouldn't really help much.


                  There has to be a way to launch my application and have it open behind any active windows...

                  • 6. Re: Launching AIR app in background
                    thilgen Level 4

                    Would NativeWindow.orderToBack() work for your use case?


                    Chris Thilgen

                    AIR Engineering

                    • 7. Re: Launching AIR app in background
                      OzzyOGRicca Level 1

                      No, because "orderToBack" orders the window behind all others in the same application. I need it to send the window behind other windows in the OS.

                      • 8. Re: Launching AIR app in background

                        I am able to open an AIR app in a minimized state by calling callLater(nativeWindow.minimize); in the WindowedApplication creationComplete event handler. The app blinks for a moment in its opened state, and then minimizes. In this case, the nativeWindow object is a property of WindowedApplication, not the stage. I am working this moment on getting the app to open in the background, and then use a SystemTrayIcon command to activate the application. Looks, however, like the NativeApplication.nativeApplication.activate() method is not honored in Windows XP. The app does not activate, and no Event.ACTIVATE event is dispatched. Good hunting.

                        • 9. Re: Launching AIR app in background
                          OzzyOGRicca Level 1

                          This works! Thank you!    

                          • 10. Re: Launching AIR app in background

                            I have an application who need to be not visible, in the screen, and in the TaskBar. I use this code for my main app:


                            <?xml version="1.0" encoding="utf-8"?>
                            <mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml"
                                        import mx.core.Window;
                                        import mx.controls.Alert;
                                        import flash.utils.setTimeout;
                                        private function onAppComplete() :void
                                            this.width = Capabilities.screenResolutionX;
                                            this.height = Capabilities.screenResolutionY;
                                            var w:Window = new Window();
                                            w.showStatusBar = false;
                                            w.showTitleBar = false;
                                            w.systemChrome = "none";
                                            w.transparent = true;
                                            w.setStyle("showFlexChrome", "false")
                                            w.type = NativeWindowType.UTILITY;
                                            w.title = "light";
                                            w.addChild(new Hider());
                                            w.x = 0;
                                            w.y = 0;
                                            w.width = this.width
                                            w.height = this.height
                                            w.alwaysInFront = true;


                            With this app descriptor:

                            <?xml version="1.0" encoding="utf-8" standalone="no"?>
                            <application xmlns="http://ns.adobe.com/air/application/2.0">
                                <!-- <description></description> -->
                                <!-- <copyright></copyright> -->
                                <!-- <publisherID></publisherID> -->
                                    <content>[This value will be overwritten by Flex Builder in the output app.xml]</content>


                            Tell me if it help you