private void blueToolStripMenuItem_Click(object sender, EventArgs e)
{
if (BTForm == null)
{
BTForm = new BlueTurtleForm();
BTForm.MdiParent = this;
BTForm.FormClosed += BTForm_FormClosed;
BTForm.Show();
}
else
{
BTForm.Activate();
}
}
private void BTForm_FormClosed(object sender, FormClosedEventArgs e)
{
BTForm = null;
}