private void pictureBox1_MouseEnter(object sender, EventArgs e)
{
pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;
pictureBox1.Cursor = Cursors.Hand;
}
private void pictureBox1_MouseLeave(object sender, EventArgs e)
{
pictureBox1.SizeMode = PictureBoxSizeMode.Zoom;
pictureBox1.Cursor = Cursors.Default;
}