private void save_with_background_Button_Copy_Click(object sender, RoutedEventArgs e)
{
StrokeCollection sc = InkCanvas.Strokes;
byte[] inkData = null;
using (MemoryStream inkMemStream = new MemoryStream())
{
sc.Save(inkMemStream);
inkData = inkMemStream.ToArray();
}
byte[] gifData = null;
using (Microsoft.Ink.Ink ink = new Microsoft.Ink.Ink())
{
ink.Load(inkData);
gifData = ink.Save(PersistenceFormat.Gif);
}
File.WriteAllBytes("c://strokes.gif", gifData);
}