I've searched on stackoverflow, but didn't find anything, and looked through the as3 documentation with the same result.
I want to do something like C's system(); or PHP's shell_exec(").
Is this possible? How?
Flash is client-side so you cannot call an executable on the server directly.
You could however create a PHP File on the server that would run your executable. Then you can launch this script from Flash using URLLoader:
var urlLoader:URLLoader = new URLLoader();
var urlRequest:URLRequest = new URLRequest('http://example.com/somescript.php');
urlLoader.load(urlRequest);
Related
I need to read a part of two files, and once both parts of both files are loaded to trigger a function that does some work.
What is the best way to approach this problem.
I am currently triggering the second file load once the first is loaded, however it seems poor coding style, I think this because my OO code starts looking procedural.
EDIT: So its an Air based app so using filestream.
In the end I found I actually needed to read each file in a different way. Because I need the same part of both files, and I dont know the file size, I need to read one file first and once I have fileStream.bytesAvailable and position, I can then look for the same data from the second file. I found I must handle files smaller than my read size and the end of files beyond multiples of my read size.
You don't specified what file and from where you wont to load the file but you can actually load multiples files in parallel.
If you want to read only part of file from local machine you can use AIR's FileStream class - very easy and you don't have to load whole few hundreds MB file:
import flash.filesystem.*;
var file:File = File.documentsDirectory;
file = file.resolvePath("Apollo Test/test.txt");
var fileStream:FileStream = new FileStream();
fileStream.open(file, FileMode.READ);
var str:String = fileStream.readMultiByte(file.size, File.systemCharset);
trace(str);
fileStream.close();
Another option is to use URLStream and listen for ProgressEvent.PROGRESSevents to read data of partially loaded file.
You may also want to see NetStream class which is used to stream video.
there is many options, using File, FileStream is only available on air applications.
The File class extends the FileReference class. The FileReference
class, which is available in Flash® Player as well as Adobe® AIR®,
represents a pointer to a file, but the File class adds properties and
methods that are not exposed in Flash Player (in a SWF running in a
browser), due to security considerations.
as noted above, if you are creating a non-AIR application, FileReference should be used instead of FileStream and File classes, as you dont tagged AIR in your question.
FileReference does not provide any open("path") to you (due to security considerations), but a browse method will be available and ask's your client's for selecting a file. here is an example, which also explain how to trigger a function when opening is done:
var filereference:FileReference = new FileReference();
filereference.addEventListener(Event.SELECT, onFileSelected);
var text_files:FileFilter = new FileFilter("Text Files","*.txt; *.html;*.htm;*.php");
var all_files:FileFilter = new FileFilter("All Files (*.*)","*.*");
filereference.browse([text_files, all_files]);
// triggered when a file is selected by user
function onFileSelected(e:Event):void {
filereference.removeEventListener(Event.SELECT, onFileSelected);
filereference.addEventListener(Event.COMPLETE, onFileLoaded);
filereference.load();
}
// triggered when file loading is complete
function onFileSelected(e:Event):void {
var data:ByteArray = fileReference["data"];
filereference.removeEventListener(Event.COMPLETE, onFileSelected);
}
two more events to be listened for suddenly error's occurred and displaying a progress bar for loading progress (its sync):
IOErrorEvent.IO_ERROR and ProgressEvent.PROGRESS
I received from my client a SWC file with hundreds of png images that all have AS Linkage such as image1_1_1, image1_1_2, image1_2_1, image2_1_3 and so on. I have these same linkage names in an XML file that i'm loading.
All the images are linked with the BitmapData class as base class.
The problem is that when i try to dynamically create new bitmaps from the xml file and the linkage names by using getDefinitionByName i get the following error:
ReferenceError: Error #1065: Variable image1_1_1 is not defined.
My code for creating the bitmaps is as follows:
var BmDataClass:Class = getDefinitionByName(xmlImage) as Class;
var image:Bitmap = new Bitmap(new BmDataClass());
where xmlImage is the variable in a for each loop, looping through the xml file.
I trace xmlImage so i know it coresponds to the correct name in the SWC file.
Does anyone have any idea why i get this error?
Would appreciate any hints or solutions :-)
try this:
var imageName:String = "xxx";
var myClass:Class = getDefinitionByName(imageName) as Class;
var bmp:BitmapData = new myClass(0, 0) as BitmapData;
var img:Bitmap = new Bitmap(bmp);
The answer seems to have been as described in the accepted Answer to this thread
Instantiate a class from a string in ActionScript 3
And also slightly explained on this page
http://producerism.com/blog/flashpunk-dame-and-lua-tutorial-part-6/
under the paragraph titled getDefinitionByName
Which for me sadly messed up a large part of the project. Ah well... new solutions presents themselves every day :-)
I'm a c++ programmer who's been forced to do some tweaks to an existing AS3 game to use the kongregate api for monetization and whatnot.
I've had no big trouble with the AS3 syntax, but now in the kongregate docs it refers to "server-side" calls which use a strange http POST syntax. Something like this: http://developers.kongregate.com/docs/rest/use-item
Can anyone point me to what it's doing (not the actual effect, that's pretty well covered by the docs)? Is it using some other language? A part of AS3 that I don't know about (that doesn't look much like a high level OO language). And what does it mean server-side? How can I write server code for an app that I build into a SWF file and upload to the server?
I feel there is a big chunk of something I'm missing to be able to research what is going on, but everyone in the comments I've seen talks about "server-side" as a given, without giving me any pointers to the basics I should know to actually use it.
Thanks,
Jaime
My understanding is that the docs are showing you what the api is expecting (in terms of HTTP request) and it's up to you to implement it in Actionscript.
If that's the case, you could use the URLLoader class.
Basically, you'd do something like this:
var url:String = "http://www.kongregate.com/api/use_item.json";
var request:URLRequest = new URLRequest();
request.url = url;
request.method = URLRequestMethod.POST
request.data = new URLVariables();
request.data.api_key = "MyApiKey";
// etc...
var loader:URLLoader = new URLLoader();
loader.dataFormat = URLLoaderDataFormat.TEXT;
loader.addEventListener(Event.COMPLETE,handleComplete);
loader.load(request);
function handleComplete(e:Event):void {
var loader:URLLoader = e.currentTarget as URLLoader;
trace(loader.data); // a string containing the service response
}
You should also handle async errors (which I ommited in this sample). Another thing you should do is decode the JSON string into an Object to make working with the data easier. I suggest you google around for some library, there are a couple out there (off the top of my head, as3corelib, which was sponsered by adobe, had a JSON parser).
I have problem in creating swf file runtime from an adobe air application. For example I create animation using https://github.com/jamesflorentino/Flip-Planes-AS3, I have converted the Sprite extension to MovieClip, the animation runs very good. Now I would like to make the animation could be save as swf file by user.
I have tried as3swf with script like this:
private function createSwf():void{
//let make example the Main class is taken from github above
var _main:Main = new Main();
// in this case i use AS3SWF plugin
var _swf:SWF = new SWF(_main.loaderInfo.bytes);
// this is for copy byteArray from the _swf convertor
var buffer:ByteArray = new ByteArray();
_swf.publish(buffer);
saveToDesktop(buffer);
}
private function saveToDesktop(_ba:ByteArray):void{
// create the file on the desktop
var myFile:File = File.desktopDirectory.resolvePath("demo.swf");
// create a FileStream to write the file
var fs:FileStream = new FileStream();
// add a listener so you know when its finished saving
fs.addEventListener(Event.CLOSE, fileWritten);
// open the file
fs.openAsync(myFile, FileMode.WRITE);
// write the bytearray to it
fs.writeBytes(_ba);
// close the file
fs.close();
}
private function fileWritten(e:Event):void{
trace("new swf file is created");
}
After all those process i got generated swf in my desktop folder with name demo.swf but when i open the file, it is only a white background with error message:
VerifyError: Error #1014: Class flash.events::NativeWindowBoundsEvent could not be found.
at flash.display::MovieClip/nextFrame()
at mx.managers::SystemManager/deferredNextFrame()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\SystemManager.as:278]
at mx.managers::SystemManager/preloader_preloaderDocFrameReadyHandler()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\SystemManager.as:2627]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.preloaders::Preloader/timerHandler()[E:\dev\4.y\frameworks\projects\framework\src\mx\preloaders\Preloader.as:515]
at flash.utils::Timer/_timerDispatch()
at flash.utils::Timer/tick()
please help me what is the best way to create swf file runtime, both from script side or command line side as long as not server side because it is desktop application.
Many Thanks
Creating a SWF at runtime is not going to be the same as taking an in memory byte array representation of an animation and saving it with a SWF extension.
If you want to build a SWF from AIR; you may consider bundling the Flex Framework with your application and use a NativeProcess to trigger mxmlc to generate a SWF. You'll need source code [or SWCs] to do this, though, it won't work with already compiled assets/classes from your running application.
Or you may want to review the file format for a SWF and go about creating it manually from your AIR application. I have no doubt this is possible, but I do not expect it to be trivial.
I want to send data generated by a flash module into an external executable in windows. From what I've learnt about interprocess communication, I think it is appropriate to use pipes in this case. I am using Flash professional CS5 and when a 'trace' command is used in actionscript the ouput will be displayed in the output window in flash professional. I think Flash pipes the data into the output window and if so is it possible to obtain the handle to that pipe. Is there a way by which I can write the output from flash player itself when the trace commands are executed or the data generated on an event directly into the buffer of a pipe.
Please help me out.
Thanks in advance.
I did some tricks using a Flash Badge, AIR app. and C# console app..
We can send params to an AIR app. from BADGE and receive it using:
protected function onInit(event:FlexEvent):void{
NativeApplication.nativeApplication.addEventListener(BrowserInvokeEvent.BROWSER_INVOKE, onBrowserInvoke);}
protected function onBrowserInvoke(e:BrowserInvokeEvent):void{
//reading args
var a:String = e.arguments[0];
//Now we can run *.exe from windows using:
if(NativeProcess.isSupported)
{
var nativeProcessStartupInfo:NativeProcessStartupInfo = new NativeProcessStartupInfo();
nativeProcessStartupInfo.executable = File.applicationDirectory.resolvePath("ExecutableApp.exe");
nativeProcessStartupInfo.arguments.push(a);
var process:NativeProcess = new NativeProcess();
//dispatched when the process will be finished
process.addEventListener(NativeProcessExitEvent.EXIT,onProcessDone);
//run
process.start(nativeProcessStartupInfo);
}
else Alert.show("Native process are not supported\nPrinter settings may be wrong!");
}
It's a long way, but certainly works! At least for me it worked.