AutoCAD .NET :: Sending Lispfunction List Of 3 Ints Fails - Shows Null Input

I have only tested this on 2009, since I dont have VS 2010 yet to test on 2012.

I was trying to make a function to show the acad color selection dialog, so the incoming argument would be a list of 3 intergers for RGB.

But .net is not taking it.  It will take a list of any other integers, but when I send in 3, it shows the resultbuffer as null.

Here is the code to test:
[LispFunction("TestRB")]public static ResultBuffer ShowAcColorDialog(ResultBuffer args) { MessageBox.Show("wow");}
 
The body is empty, because we are just testing to see what args is during debug.

If you call it with (TestRB (list 1 2)) in acad, the args shows typical items.

If you call it with (TestRB (list 1 2 3)) in acad, the args shows null.

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