expose SendMouseWheelEvent

Author: sylvain-hamel

CefSharp.WinForms/ChromiumWebBrowser.cs

@@ -122,6 +122,11 @@ public Task<JavascriptResponse> EvaluateScriptAsync(string script, TimeSpan? tim
             return managedCefBrowserAdapter.EvaluateScriptAsync(script, timeout);
         }
 
+        public void SendMouseWheelEvent(int x, int y, int deltaX, int deltaY)
+        {
+            managedCefBrowserAdapter.OnMouseWheel(x, y, deltaX, deltaY);
+        }
+
         public event EventHandler<LoadErrorEventArgs> LoadError;
         public event EventHandler<FrameLoadStartEventArgs> FrameLoadStart;
         public event EventHandler<FrameLoadEndEventArgs> FrameLoadEnd;