public static int Main(string[] args)
{
Console.WriteLine("This example application will load {0}, take a screenshot, and save it to your desktop.", TestUrlOne);
Console.WriteLine("You may see a lot of Chromium debugging output, please wait...");
Console.WriteLine();
//Console app doesn't have a message loop which we need as Cef.Initialize/Cef.Shutdown must be called on the same
//thread. We use a super simple SynchronizationContext implementation from
//https://devblogs.microsoft.com/pfxteam/await-synchronizationcontext-and-console-apps/
//Continuations will happen on the main thread
//The Nito.AsyncEx.Context Nuget package has a more advanced implementation
//https://github.com/StephenCleary/AsyncEx/blob/8a73d0467d40ca41f9f9cf827c7a35702243abb8/doc/AsyncContext.md#console-example-using-asynccontext
AsyncContext.Run(async delegate
{
Cef.EnableWaitForBrowsersToClose();
var settings = new CefSettings();
//The location where cache data will be stored on disk. If empty an in-memory cache will be used for some features and a temporary disk cache for others.
//HTML5 databases such as localStorage will only persist across sessions if a cache path is specified.
settings.CachePath = Path.GetFullPath("cache");
var success = await Cef.InitializeAsync(settings);
if (!success)
{
return;
}
var t1 = MainAsync(TestUrlOne, TestUrlTwo, "cache\\path1", 1.0);
//Demo showing Zoom Level of 2.0
//Using seperate request contexts allows the urls from the same domain to have independent zoom levels
//otherwise they would be the same - default behaviour of Chromium
var t2 = MainAsync(TestUrlThree, TestUrlFour, "cache\\path2", 2.0);
await Task.WhenAll(t1, t2);
Console.WriteLine("Image viewer launched. Press any key to exit.");
// Wait for user input
Console.ReadKey();
//Wait until the browser has finished closing (which by default happens on a different thread).
//Cef.EnableWaitForBrowsersToClose(); must be called before Cef.Initialize to enable this feature
//See https://github.com/cefsharp/CefSharp/issues/3047 for details
Cef.WaitForBrowsersToClose();
// Clean up Chromium objects. You need to call this in your application otherwise
// you will get a crash when closing.
Cef.Shutdown();
});
//Success
return(0);
}
