public static void ClipboardUpload()
        {
            if (Clipboard.ContainsImage())
            {
                Image img = Clipboard.GetImage();
                UploadImage(img);
            }
            else if (Clipboard.ContainsFileDropList())
            {
                string[] files = Clipboard.GetFileDropList().Cast <string>().ToArray();
                UploadFile(files);
            }
            else if (Clipboard.ContainsText())
            {
                string text = Clipboard.GetText();

                if (Program.Settings.ClipboardUploadAutoDetectURL && ZAppHelper.IsValidURL(text))
                {
                    ShortenURL(text.Trim());
                }
                else
                {
                    UploadText(text);
                }
            }
        }