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Ok so lets save this image then….
There are a few more things we need to add to our little application file.
We need to import a jpeg encoder and a few filesystem classes. So underneath the other importing statements we add the following code: import mx.graphics.codec.JPEGEncoder;
import flash.filesystem.File;
import flash.filesystem.FileMode;
import flash.filesystem.FileStream;
We also need to add a call to a new function to save the image. We will add this to the takeSnapshot function. The take snapshot function will now look like this: public function takeSnapshot():void{
var snapshotHolder:UIComponent = new UIComponent();
var snapshot:BitmapData = new BitmapData(160,120, true);
var snapshotbitmap:Bitmap = new Bitmap(snapshot);
snapshotHolder.addChild(snapshotbitmap);
cnvSnapshot.addChild(snapshotHolder);
snapshot.draw(video);
saveImg(snapshot);
}
Finally we add the saveImg() function. private function saveImg( imgData:BitmapData ):void{
/* Create the necessary objects */
var imgEncoder:JPEGEncoder = new JPEGEncoder( 99 );
var fileStream:FileStream = new FileStream();
var myDate:Date = new Date(); /* Create the unique file name */
var thisFileName:String = “webcam_”+ myDate.getTime() +”.jpg”;
/* Create the a file object for the new file */
var theFile:File = File.desktopDirectory.resolve( thisFileName ); /* Get the image data and store it in a byte array */
var iBytesA:ByteArray = imgEncoder.encode(imgData) ; /* Open the file and write the data to the file */
fileStream.openAsync(theFile, FileMode.WRITE);
fileStream.writeBytes( iBytesA ); /* Close the file */
fileStream.close();
}
There you have it. Now when you click the snapshot button you should get an image file created on the desktop.
Here is a link to the complete code. Next on our to do list is to add a timer function to periodically take pictures…
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