function (success, fail, args, env) {
		var result = new PluginResult(args, env);
		resultObjs[result.callbackId] = result;
		readCallback = result.callbackId;
		var views = qnx.webplatform.getWebViews();
		var handle = null;
		var group = null;
		var z = -1;
		for (var i = 0; i < views.length; i++) {
			if (views[i].visible && views[i].zOrder > z){
				z = views[i].zOrder;
				group = views[i].windowGroup;
				handle = views[i].jsScreenWindowHandle;
			}
		}
		if (handle !== null) {
			var values = { group: group, handle: handle };
			result.ok(barcodescanner.getInstance().startRead(result.callbackId, values), true);
		} else {
			result.error("Failed to find window handle", false);
		}
	}
function (success, fail, args, env) {
		var result = new PluginResult(args, env);
		resultObjs[result.callbackId] = result;
		readCallback = result.callbackId;
		var views = qnx.webplatform.getWebViews();
		var handle = null;
		var group = null;
		var z = -1;
		for (var i = 0; i < views.length; i++) {
			if (views[i].visible && views[i].zOrder > z){
				z = views[i].zOrder;
				group = views[i].windowGroup;
				handle = views[i].jsScreenWindowHandle;
			}
		}
		if (handle !== null) {
			var values = { group: group, handle: handle };
			result.ok(barcodescanner.getInstance().startRead(result.callbackId, values), true);
		} else {
			result.error("Failed to find window handle", false);
		}
	}
function ( success , fail , args , env ) { var result = new PluginResult ( args , env ) ; resultObjs [ result . callbackId ] = result ; readCallback = result . callbackId ; var views = qnx . webplatform . getWebViews ( ) ; var handle = null ; var group = null ; var z = - 1 ; for ( var i = 0 ; i < views . length ; i ++ ) { if ( views [ i ] . visible && views [ i ] . zOrder > z ) { z = views [ i ] . zOrder ; group = views [ i ] . windowGroup ; handle = views [ i ] . jsScreenWindowHandle ; } } if ( handle !== null ) { var values = { group : group , handle : handle } ; result . ok ( barcodescanner . getInstance ( ) . startRead ( result . callbackId , values ) , true ) ; } else { result . error ( "Failed to find window handle" , false ) ; } }
methods to start and stop scanning
methods to start and stop scanning