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OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

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async Task CompileModelAsync()
{
    //Define remote URL
    var model_remote_url = "";
    var model_name = "FruitModel";
    var model_file_extension = "mlodel";

    string path = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
    string model_path = Path.Combine(path, $"{model_name + model_file_extension}");

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	public class GzipWebClient : WebClient
	{
		protected override WebRequest GetWebRequest(Uri address)
		{
			var request = base.GetWebRequest(address);
			if(request is HttpWebRequest)
			{
				((HttpWebRequest)request).AutomaticDecompression = DecompressionMethods.Deflate | DecompressionMethods.GZip;
			}

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Logger.Info("Sending analytics request to Segment.io ..", props);

				var start = DateTime.Now;

                HttpResponseMessage response = null;

                try {
                    //breakpoint hit
                    response = _client.SendAsync(request).Result;
                    

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public class EventArgs<T> : EventArgs
  {
		public T Data { get; set; }

		public EventArgs (T data)
		{
			Data = data;
		}

		public static EventArgs<T> From (T data)

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if (UIDevice.CurrentDevice.CheckSystemVersion (6, 0))
{
  var status = ABAddressBook.GetAuthorizationStatus();
	if (status == ABAuthorizationStatus.Denied || status == ABAuthorizationStatus.Restricted) {
		// no address book
	} else {
		if (this.addressBook == null)
			this.addressBook = new ABAddressBook();
 
		if (status == ABAuthorizationStatus.NotDetermined) {

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public static ABAddressBook Create (out NSError error)
{
  IntPtr intPtr;
  IntPtr value = ABAddressBook.ABAddressBookCreateWithOptions (IntPtr.Zero, out intPtr);
	ABAddressBook result;
	if (value == IntPtr.Zero)
	{
		error = new NSError (intPtr);
		result = null;
	}

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public static ABAddressBook Create (out NSError error)
{
  IntPtr intPtr;
	IntPtr value = ABAddressBook.ABAddressBookCreateWithOptions (IntPtr.Zero, out intPtr);
	ABAddressBook result;
	if (value == IntPtr.Zero)
	{
		error = new NSError (intPtr);
		result = null;
	}

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public class MyViewController : UIViewController {

	public override void ViewDidLoad ()
	{
		base.ViewDidLoad ();
		for (int i = 0; i < Int32.MaxValue; i++) {
			DoStuffAsync();
		}
	}

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package main

import (
  "github.com/gorilla/rpc"
	"github.com/gorilla/rpc/json"
	"net/http"
)

type HelloArgs struct {
	Who string