For your 1st error, all you’ve gotta do is add the type as Stroke for the stack when you declare the removedStrokes stack, like this :

private Stack _removedStrokes = new Stack ();

The 2nd of course will be resolved by adding the System.Windows.Ink reference

Firstly – Cool an MVP commenting on my blog … agree yes its based on the .NET CF. I guess I was getting at what SL for Mobile brings to developers – If i had tried to implement the same functionality as InkPresenter in a .NET CF win forms application I believe it would have taken a lot longer

Nick

WP7 based on .NET Compact Framework too ))

Ensure you have a reference to C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\Silverlight\v4.0\Profile\WindowsPhone\system.dll for Stack and a reference to
C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\Silverlight\v4.0\Profile\WindowsPhone\System.Windows.dll for Stroke and add the following using directives at the top of your codebehind

using System.Windows.Ink;
using System.Collections.Generic;

Using the generic type ‘System.Collections.Generic.Stack’ requires 1 type arguments

The type or namespace name ‘Stroke’ could not be found (are you missing a using directive or an assembly reference?)

What should I do?