Toggle form visibility on NotifyIcon click and hide it on click elsewhere

Question

I have an application which is in system tray. I want to make it visible when the user clicks on the notifyIcon, if it\'s not visible already. If it is already

Answer 1

Simply keep track of the time when the window was last hidden. And ignore the mouse click if that happened recently. Like this:

int lastDeactivateTick;
bool lastDeactivateValid;

protected override void OnDeactivate(EventArgs e) {
    base.OnDeactivate(e);
    lastDeactivateTick = Environment.TickCount;
    lastDeactivateValid = true;
    this.Hide();
}

private void notifyIcon1_MouseClick(object sender, MouseEventArgs e) {
    if (lastDeactivateValid && Environment.TickCount - lastDeactivateTick < 1000) return;
    this.Show();
    this.Activate();
}

Clicking the icon repeatedly now reliably toggles the window visibility.