namespace CefSharp.OffScreen.Example
{
public class Program
{
private static ChromiumWebBrowser browser;
public static void Main(string[] args)
{
const string testUrl = "http://www.baidu.com/";
Console.WriteLine("This example application will load {0}, take a screenshot, and save it to your desktop.", testUrl);
Console.WriteLine("You may see a lot of Chromium debugging output, please wait...");
Console.WriteLine();
// You need to replace this with your own call to Cef.Initialize();
CefExample.Init();
// Create the offscreen Chromium browser.
browser = new ChromiumWebBrowser();
// An event that is fired when the first page is finished loading.
// This returns to us from another thread.
browser.FrameLoadEnd += BrowserFrameLoadEnd;
// Start loading the test URL in Chrome's thread.
//browser.Load(testUrl);
browser.Load("dummy:");
// 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 BrowserFrameLoadEnd(object sender, FrameLoadEndEventArgs e)
{
ChromiumWebBrowser browser = sender as ChromiumWebBrowser;
if (browser.Title == "dummy:")
{
browser.LoadHtml("<html><head></head><body><h1>OKOKOK</h1></body></html>", "about:blank");
return;
}
// Check to ensure it is the main frame which has finished loading
// (rather than an iframe within the main frame).
if (e.IsMainFrame)
{
// Remove the load event handler, because we only want one snapshot of the initial page.
browser.FrameLoadEnd -= BrowserFrameLoadEnd;
var task1 = browser.GetSourceAsync();
task1.Wait();
string html= task1.Result;
// Wait for the screenshot to be taken.
var task = browser.ScreenshotAsync();
task.Wait();
// Make a file to save it to (e.g. C:\Users\jan\Desktop\CefSharp screenshot.png)
var screenshotPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), "CefSharp screenshot.png");
Console.WriteLine();
Console.WriteLine("Screenshot ready. Saving to {0}", screenshotPath);
// Save the Bitmap to the path.
// The image type is auto-detected via the ".png" extension.
task.Result.Save(screenshotPath);
// We no longer need the Bitmap.
// Dispose it to avoid keeping the memory alive. Especially important in 32-bit applications.
task.Result.Dispose();
Console.WriteLine("Screenshot saved. Launching your default image viewer...");
// Tell Windows to launch the saved image.
Process.Start(screenshotPath);
Console.WriteLine("Image viewer launched. Press any key to exit.");
}
}
}
}
