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.");
}
}
}
}