//?Copyright???2010-2015?The?CefSharp?Authors.?All?rights?reserved.
//
//?Use?of?this?source?code?is?governed?by?a?BSD-style?license?that?can?be?found?in?the?LICENSE?file.

using?System;
using?System.Diagnostics;
using?System.IO;
using?System.Threading;
using?CefSharp.OffScreen;
using?System.Threading.Tasks;

namespace?CefSharp.MinimalExample.OffScreen
{
????public?class?Program
????{
????????private?static?ChromiumWebBrowser?browser;

????????public?static?void?Main（string[]?args）
????????{
????????????const?string?testUrl?=?“https://www.google.com/“;

????????????Console.WriteLine（“This?example?application?will?load?{0}?take?a?screenshot?and?save?it?to?your?desktop.“?testUrl）;
????????????Console.WriteLine（“You?may?see?Chromium?debugging?output?please?wait...“）;
????????????Console.WriteLine（）;

????????????var?settings?=?new?CefSettings（）
????????????{
????????????????//By?default?CefSharp?will?use?an?in-memory?cache?you?need?to?specify?a?Cache?Folder?to?persist?data
????????????????CachePath?=?Path.Combine（Environment.GetFolderPath（Environment.SpecialFolder.LocalApplicationData）?“CefSharp\\Cache“）
????????????};

????????????//Perform?dependency?check?to?make?sure?all?relevant?resources?are?in?our?output?directory.
????????????Cef.Initialize（settings?performDependencyCheck:?true?browserProcessHandler:?null）;

????????????//?Create?the?offscreen?Chromium?browser.
????????????browser?=?new?ChromiumWebBrowser（testUrl）;

????????????//?An?event?that?is?fired?when?the?first?page?is?finished?loading.
????????????//?This?returns?to?us?from?another?thread.
????????????browser.LoadingStateChanged?+=?BrowserLoadingStateChanged;

????????????//?We?have?to?wait?for?something?otherwise?the?process?will?exit?too?soon.
????????????Console.ReadKey（）;

????????????//?Clean?up?Chromium?objects.??You?need?to?call?this?in?your?application?otherwise
????????????//?you?will?get?a?crash?when?closing.
????????????Cef.Shutdown（）;
????????}

????????private?static?void?BrowserLoadingStateChanged（object?sender?LoadingStateChangedEventArgs?e）
????????{
????????????//?Check?to?see?if?loading?is?complete?-?this?event?is?called?twice?one?when?loading?starts
????????????//?second?time?when?it‘s?finished
????????????//?（rather?than?an?iframe?within?the?main?frame）.
????????????if?（!e.IsLoading）
????????????{
????????????????//?Remove?the?load?event?handler?because?we?only?want?one?snapshot?of?the?initial?page.
????????????????browser.LoadingStateChanged?-=?BrowserLoadingStateChanged;

????????????????var?scriptTask?=?browser.EvaluatescriptAsync（“document.getElementById（‘lst-ib‘）.value?=?‘CefSharp?Was?Here!‘“）;

????????????????scriptTask.ContinueWith（t?=>
????????????????{
????????????????????//Give?the?browser?a?little?time?to?render
????????????????????Thread.Sleep（500）;
????????????????????//?Wait?for?the?screenshot?to?be?taken.
????????????????????var?task?=?browser.ScreenshotAsync（）;
????????????????????task.ContinueWith（x?=>
????????????????????{
??????????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-04-21?22:55??CefSharp.MinimalExample-master\
?????文件????????2518??2017-04-21?22:55??CefSharp.MinimalExample-master\.gitattributes
?????文件????????1522??2017-04-21?22:55??CefSharp.MinimalExample-master\.gitignore
?????目錄???????????0??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.OffScreen\
?????文件????????4648??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.OffScreen\CefSharp.MinimalExample.OffScreen.csproj
?????文件????????4235??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.OffScreen\Program.cs
?????目錄???????????0??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.OffScreen\Properties\
?????文件????????1259??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.OffScreen\Properties\AssemblyInfo.cs
?????文件?????????143??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.OffScreen\app.config
?????文件????????2596??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.OffScreen\app.manifest
?????文件?????????383??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.OffScreen\packages.config
?????目錄???????????0??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.WinForms\
?????文件???????10257??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.WinForms\BrowserForm.Designer.cs
?????文件????????4806??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.WinForms\BrowserForm.cs
?????文件???????43377??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.WinForms\BrowserForm.resx
?????文件????????5326??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.WinForms\CefSharp.MinimalExample.WinForms.csproj
?????目錄???????????0??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.WinForms\Controls\
?????文件?????????821??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.WinForms\Controls\ControlExtensions.cs
?????文件????????1142??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.WinForms\Program.cs
?????目錄???????????0??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.WinForms\Properties\
?????文件????????1257??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.WinForms\Properties\AssemblyInfo.cs
?????文件????????4697??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.WinForms\Properties\Resources.Designer.cs
?????文件????????7109??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.WinForms\Properties\Resources.resx
?????目錄???????????0??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.WinForms\Resources\
?????文件???????47032??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.WinForms\Resources\chromium-256.png
?????文件?????????948??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.WinForms\Resources\nav_left_green.png
?????文件?????????864??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.WinForms\Resources\nav_plain_green.png
?????文件?????????864??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.WinForms\Resources\nav_plain_red.png
?????文件?????????960??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.WinForms\Resources\nav_right_green.png
?????文件?????????143??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.WinForms\app.config
?????文件????????2513??2017-04-21?22:55??CefSharp.MinimalExample-master\CefSharp.MinimalExample.WinForms\app.manifest
............此處省略26個文件信息