Hello,
Welcome to our Microsoft Q&A platform!
Currently, there seems no api can blink your app's icon in Taskbar. If you want to achieve some eye-catching effects, you can use notification or make notification badges appear on your app's taskbar icon, but it is a static effect without animation. For more details, you can refer to this document.
private void updateBadgeGlyph()
{
string badgeGlyphValue = "attention";
XmlDocument badgeXml =
BadgeUpdateManager.GetTemplateContent(BadgeTemplateType.BadgeGlyph);
Windows.Data.Xml.Dom.XmlElement badgeElement =
badgeXml.SelectSingleNode("/badge") as Windows.Data.Xml.Dom.XmlElement;
badgeElement.SetAttribute("value", badgeGlyphValue);
BadgeNotification badge = new BadgeNotification(badgeXml);
BadgeUpdater badgeUpdater =
BadgeUpdateManager.CreateBadgeUpdaterForApplication();
badgeUpdater.Update(badge);
}
Thanks!