private void button1_Click(object sender, EventArgs e)
{
SaveFileDialog dialog = new SaveFileDialog();
dialog.DefaultExt = "bmp";
string path = "";
if (dialog.ShowDialog() == DialogResult.OK)
{
path = dialog.FileName;
Image im = context.GetImage();
im.Save(path);
MessageBox.Show("Image saved!");
}
// ig.DrawScene(context);
}