public static void ShowTip(string tipMsg, int second = 15)
{
if (win == null)
{
win = new TipWindow();
win.Closed += Win_Closed;
win.Show();
}
if (win.Visibility == Visibility.Collapsed)
{
win.Visibility = Visibility.Visible;
}
win.AddItem(tipMsg, second);
}
private static void Win_Closed(object sender, EventArgs e)
{
win = null;
}