/// <summary>
/// Update form position and opacity to show/hide the window.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void tmAnimation_Tick(object sender, EventArgs e)
{
frmPopup.painting_require = false;
long elapsed = sw.ElapsedMilliseconds;
posCurrent = (int)(posStart + ((posStop - posStart) * elapsed / AnimationDuration));
bool neg = (posStop - posStart) < 0;
if ((neg && posCurrent < posStop) ||
(!neg && posCurrent > posStop))
{
posCurrent = posStop;
}
frmPopup.increasehight(posCurrent);
frmPopup.Top = posCurrent;
frmPopup.painting_require = true;
// System.Diagnostics.Debug.WriteLine(frmPopup.Top);
if (elapsed > AnimationDuration)
{
animation_working = false;
sw.Reset();
tmrAnimation.Stop();
// System.Diagnostics.Debug.WriteLine("Animation stopped.");
}
}