Windows Mobile notification dialog

I want to show message dialog like system shows me (i.e. when SMS has arrived or Alarm). I have tried using CeSetUserNotificationEx, but i have no idea, why it always return 0 IntPtr and nothing happens. Could you provide me short and worki开发者_高级运维ng sample of how to do this with C# and .NET Compact Framework 2.0?

The message dialog is shown with the Microsoft.WindowsCE.Forms.Notification class, but to know what's wrong with your notification setup code, we need to see the actual code.