private void openToolStripMenuItem_Click(object sender, EventArgs e)
{
open_ans();
AnswerScreen ans = new AnswerScreen();
ans.Show();
}
private async void send_q_Click(object sender, EventArgs e)
{
Task <AnswerScreen> task = new Task <AnswerScreen>(on_click);
task.Start();
AnswerScreen sc = await task;
sc.Show();
}