NativeProcess progressevent doesn't get dispatched

Question

Hi guys,
I have a simple nativeprocess code in my app. I unzip password protected zip files using 7zip and want to capture every time a file is unzipped.
Here's the code:
                    var npInfo:* = new NativeProcessStartupInfo();
                    npInfo.executable = app_7za;       
                     var args:Vector.<String> = new Vector.<String>;           
                    args.push("e");
                    args.push('');               
                    args.push("-Ptestpass");                   
                    args.push(zipFile.nativePath);
                    args.push('');
                    args.push("-o"+destinationFolder.nativePath);
                    npInfo.arguments = args; 
                    processBuffer = new ByteArray();
                    nativeProcess = new NativeProcess();
                    nativeProcess.addEventListener("standardOutputData",         onStandardOutputData);
                    nativeProcess.addEventListener("standardInputProgress",     onStandardOutputProgress);
                    nativeProcess.addEventListener(NativeProcessExitEvent.EXIT, onStandardOutputClose);
                    nativeProcess.addEventListener("standardErrorData",            onIOError);           
                    nativeProcess.addEventListener("standardOutputIoError",      onIOError);
                    nativeProcess.addEventListener("standardErrorIoError",         onIOError);
                    nativeProcess.addEventListener("standardInputIoError",         onIOError);  
When I use it, it works, but I can only see the final output and the standardOutputData event doesn't get dispatched during the process.
Do you guys have any idea?
Thanks in advance.
Zsolt

Answer 1

Thats because output data is used when the executable returns some sort of output stream.
You can listen on the exit event, which will fire as your process is complete (note: it'll only fire once all the files have extracted, you'd have to do them indvidually to capture each extraction within flash)
private function onExit( event:NativeProcessExitEvent ):void {
            trace("Native Process Exit code: " + event.exitCode);
And you'll get one of these exit codes
Exit Codes from 7-Zip
7-Zip returns the following exit codes:
Code
Meaning
0
No error
1
Warning (Non fatal error(s)). For example, one or more files were locked by some other application, so they were not compressed.
2
Fatal error
7
Command line error
8
Not enough memory for operation
255
User stopped the process