public static async Task <int> TakeScreenshotAsync(string url, int width, int height, string[] args)
{
try {
var mainArgs = new CefMainArgs(args);
// create app
var app = new OffscreenApp();
var exitCode = CefRuntime.ExecuteProcess(mainArgs, app, IntPtr.Zero);
if (exitCode != -1)
{
return(exitCode);
}
// init CEF
var settings = new CefSettings {
SingleProcess = false,
MultiThreadedMessageLoop = true,
LogSeverity = CefLogSeverity.Error,
LogFile = "CefGlue.log"
};
CefRuntime.Initialize(mainArgs, settings, app, IntPtr.Zero);
// create browser
var browser = new OffscreenBrowser(url, width, height);
// wait for the site to be loaded
await WaitForBrowserLoadingAsync(browser).ConfigureAwait(false);
await Task.Delay(1000).ConfigureAwait(false);
browser.WindowBitmap.Save("output.png");
// dispose everything
var host = browser.GetBrowser().GetHost();
host.CloseBrowser();
host.Dispose();
CefRuntime.Shutdown();
return(0);
} catch (Exception exc) {
Console.WriteLine(exc.Message);
}
return(-1);
}
public override void Run()
{
var mainArgs = new CefMainArgs(new string[] { });
var app = new OffscreenApp();
CefRuntime.ExecuteProcess(mainArgs, app, IntPtr.Zero);
// init CEF
var settings = new CefSettings
{
SingleProcess = false,
MultiThreadedMessageLoop = true,
LogSeverity = CefLogSeverity.Error,
LogFile = "CefGlue.log"
};
CefRuntime.Initialize(mainArgs, settings, app, IntPtr.Zero);
Trace.WriteLine("Starting processing of messages");
// Initiates the message pump and callback is invoked for each message that is received, calling close on the client will stop the pump.
Client.OnMessage((receivedMessage) =>
{
try
{
// Process the message
Trace.WriteLine("Processing Service Bus message: " + receivedMessage.SequenceNumber.ToString());
var handler = MessageHandlerFactory.GetMessageHandler(receivedMessage.ContentType);
handler.Handle(receivedMessage, CompletedClient);
receivedMessage.Complete();
}
catch (Exception ex)
{
// Handle any message processing specific exceptions here
}
});
CompletedEvent.WaitOne();
}