/// <summary> /// take screenshot and save to a file /// </summary> /// <param name="filepath"></param> /// <returns></returns> public static string TakeScreenshot(string filepath) { if (string.IsNullOrEmpty(filepath)) { filepath = string.Format(@"{0}\{1}.png", Environment.CurrentDirectory, TextHelper.RandomString(10)); } var bmp = TakeSnapshot(); bmp.Save(filepath, ImageFormat.Png); return(filepath); }