//initialise timer window
private void minutnikToolStripMenuItem_Click(object sender, EventArgs e)
{
TimerAlarm timer_window = new TimerAlarm();
timer_window.Show();
}
string copied_topic; //string to contain copied text from previous window
//calls getter to retrieve text from previous window
public AlarmNotification(TimerAlarm timer_window)
{
InitializeComponent();
this.copied_topic = timer_window.copyTopic;
}