In WinForms you used to be able to do this:
ToolTip hint = new ToolTip();
hint.IsBalloon = true;
as described here: How to show a .NET Balloon ToolTip? to display a balloon, as described by Microsoft here: https://msdn.microsoft.com/en-us/library/dn742400.aspx
Where is this functionality in WPF? I can find lots of people detailing how they wrote their own, but where has this functionality gone?
EDIT:
I understand that there are questions out there on how to write your own or what code is available, but I'm asking - does anyone know why this functionality is recommended by Microsoft yet not included in what is meant to be their recommended UI language (WPF)?