WPF/OffScreen - FOr default initialize we set WindowlessRenderingEnabled = true

Author: amaitland

CefSharp.OffScreen/ChromiumWebBrowser.cs

@@ -278,9 +278,15 @@ public class ChromiumWebBrowser : IRenderWebBrowser
         public ChromiumWebBrowser(string address = "", BrowserSettings browserSettings = null,
             RequestContext requestContext = null, bool automaticallyCreateBrowser = true)
         {
-            if (!Cef.IsInitialized && !Cef.Initialize())
+            if (!Cef.IsInitialized)
             {
-                throw new InvalidOperationException("Cef::Initialize() failed");
+                var settings = new CefSettings();
+                settings.WindowlessRenderingEnabled = true;
+
+                if (!Cef.Initialize(settings))
+                {
+                    throw new InvalidOperationException("Cef::Initialize() failed");
+                }
             }
 
             ResourceHandlerFactory = new DefaultResourceHandlerFactory();

CefSharp.Wpf/ChromiumWebBrowser.cs

@@ -439,6 +439,7 @@ private void NoInliningConstructor()
                 //Workaround for #2408
                 var settings = new CefSettings();
                 settings.DisableTouchpadAndWheelScrollLatching();
+                settings.WindowlessRenderingEnabled = true;
 
                 if (!Cef.Initialize(settings))
                 {