protected override byte[] CallTheDriver(ControllerContext context)
{
// use action name if the view name was not provided
string viewName = ViewName;
if (string.IsNullOrEmpty(viewName))
viewName = context.RouteData.GetRequiredString("action");
ViewEngineResult viewResult = GetView(context, viewName, MasterName);
string html = context.GetHtmlFromView(viewResult, viewName, Model);
byte[] fileContent = WkhtmltoimageDriver.ConvertHtml(this.WkhtmlPath, this.GetConvertOptions(), html);
return fileContent;
}