use as3 NativeProcess to run windows cmd - actionscript-3

Question

I used the NativeProcess to run my .cmd file to use the convert of Imagemagick on Windows.
the cmd is
convert -resize 1%x2% 3% 4%
On my computer,it looked normal.
But on some other computer,the bug looked like the “-resize” was be garbled.
then I changed the cmd
convert 1% 2%x3% 4% 5%
but on some computer，it still have the bug.
Is that the air output UTF-8,and the windows CMD use Unicode?
How to use it will not produce this error?
my code is
private var mProcess:NativeProcess;
private function convertImgToTargetPng(filePath:String,resultFilePath:String,width:Number,height:Number,scale:Number=1):void
{
var convertFile:File = File.applicationDirectory.resolvePath("script").resolvePath("convert.cmd");
var nativeProcessStartupInfo = new NativeProcessStartupInfo();
nativeProcessStartupInfo.executable = convertFile;
nativeProcessStartupInfo.workingDirectory = File.userDirectory;
var processArgs:Vector.<String> = new Vector.<String>();
processArgs.push("-resize");
processArgs.push(width*scale);
processArgs.push(height*scale);
processArgs.push(filePath);
processArgs.push(resultFilePath);
nativeProcessStartupInfo.arguments = processArgs;
mProcess = new NativeProcess();
mProcess.addEventListener(ProgressEvent.STANDARD_ERROR_DATA, onConvertErrorHandler);
mProcess.addEventListener(NativeProcessExitEvent.EXIT, onConvertExitHandler);
try
{
mProcess.start(nativeProcessStartupInfo);
}
catch (e : Error)
{
Alert.show("convert failed: " + e.message);
}
}
private function onConvertErrorHandler(event : ProgressEvent):void
{
var data:String = mProcess.standardError.readUTFBytes(mProcess.standardError.bytesAvailable);
Alert.show("convert error :" + data);
}
private function onConvertExitHandler(event : NativeProcessExitEvent):void
{
mProcess.removeEventListener(ProgressEvent.STANDARD_ERROR_DATA, onConvertErrorHandler);
mProcess.removeEventListener(NativeProcessExitEvent.EXIT, onConvertExitHandler);
Alert.show("convert success");
}

Answer 1

Untested but you can try...
Make a changed CMD file that looks like: convert 1% 2% 3% 4%
and update your AS3 code section to look like this...
var processArgs:Vector.<String> = new Vector.<String>();
processArgs.push("-resize");
processArgs.push(String ( String(width*scale) + "x" + String(height*scale) ) );
processArgs.push(filePath);
processArgs.push(resultFilePath);
Let me now how it goes.
Also instead of a .cmd file, why not just run the process with convert.exe file itself? :
If that convert.exe is located here : c:\program files\imagemagick\convert.exe Then use path location in AS3 code as c:\\program files\\imagemagick\\convert.exe
private function convertImgToTargetPng(filePath:String,resultFilePath:String,width:Number,height:Number,scale:Number=1):void
{
//# Use your location of convert.exe
var convertFile : File = new File("C:\\imageMagick\\converter.exe");
if ( convertFile.exists ) //# If found in your location
{
var nativeProcessStartupInfo:NativeProcessStartupInfo = new NativeProcessStartupInfo(); //vc
nativeProcessStartupInfo.executable = convertFile;
nativeProcessStartupInfo.workingDirectory = File.userDirectory;
var processArgs:Vector.<String> = new Vector.<String>();
processArgs.push("-resize");
processArgs.push(String ( String(width*scale) + "x" + String(height*scale) ) );
processArgs.push(filePath);
processArgs.push(resultFilePath);
nativeProcessStartupInfo.arguments = processArgs;
mProcess = new NativeProcess();
mProcess.addEventListener(ProgressEvent.STANDARD_ERROR_DATA, onConvertErrorHandler);
mProcess.addEventListener(NativeProcessExitEvent.EXIT, onConvertExitHandler);
try { mProcess.start(nativeProcessStartupInfo); }
catch (e : Error)
{ Alert.show("convert failed: " + e.message); }
}
}