zhangao0086

// swift
var image = xxx
var rect = NSRect(x: 0, y: 0, width: image.size.width, height: image.size.height)
let cgImage = image.CGImageForProposedRect(&rect, context: nil, hints: nil)!.takeUnretainedValue()
let bitmapRep = NSBitmapImageRep(CGImage: cgImage)

if let imageData = bitmapRep.representationUsingType(NSBitmapImageFileType.NSPNGFileType, properties: [:]) {
    let len = imageData.length
    
    var bytes = [UInt8](count: len, repeatedValue: 0)

jkhowland

//
//  Stack.m
//
//  Created by Joshua Howland on 6/12/14.
//  Copyright (c) 2014 DevMountain. All rights reserved.
//


#import <Foundation/Foundation.h>
@import CoreData;