Forcing curves to update in animation editor window

Hi, I've written a tool to allow our artists to edit animation curves in the 3D view. I would like these to update the animation editor window's curves in real time as they're edited - currently, I have to switch between dopesheet and curve editor to see any changes.

I've tried a few methods but nothing seems to force the window to refresh those curves:

attempt 1:

 `UnityEditorInternal.InternalEditorUtility.RepaintAllViews();` //doesn't seem to do anything

attempt 2:

 System.Reflection.Assembly assembly = typeof(UnityEditor.EditorWindow).Assembly; 
 System.Type type = assembly.GetType("UnityEditor.AnimationWindow");
 EditorWindow gameview = EditorWindow.GetWindow(type);
 EditorUtility.SetDirty(gameview); //Was hoping this would inform unity that the animation is dirty
 gameview.Repaint();

I tried grabbing the methods from the AnimationWindow but there was nothing in there that suggested curve editing. I also tried grabbing 'CurveEditorWindow' but I think this refers to the popup curve editor seen in the inspector panels as calling 'EditorWindow.GetWindow' seemed to invoke the constructor for that type rather than (as expected), grabbing a window of that type that's already extant, which caused a bunch of errors as its out of context.

So, anyway: does anybody know the magic words required to get this window to recalculate its curves?

Thanks for your time,