emxArray_real_TからC#構造への初期化(matlabを用いてC++のdllに変換し、C#で呼び出す)

[StructLayout(LayoutKind.Sequential)] public struct emxArray_real_T { public IntPtr data; public IntPtr size; public int allocatedSize; public int numDimensions; [MarshalAs(UnmanagedType.U1)] public bool canFreeData; }
public class emxArray_real_T_Wrapper : IDisposable { private emxArray_real_T value; private GCHandle dataHandle; private GCHandle sizeHandle;

public emxArray_real_T Value {
    get { return value; } 
}

public emxArray_real_T_Wrapper(double[] data)
{
    dataHandle = GCHandle.Alloc(data, GCHandleType.Pinned);
    value.data = dataHandle.AddrOfPinnedObject();
    sizeHandle = GCHandle.Alloc(new int[] { data.Length }, GCHandleType.Pinned);
    value.size = sizeHandle.AddrOfPinnedObject();
    value.allocatedSize = data.Length;
    value.numDimensions = 1;
    value.canFreeData = false;
}

public void Dispose()
{
    dataHandle.Free();
    sizeHandle.Free();
    GC.SuppressFinalize(this);
}

~emxArray_real_T_Wrapper()
{
    Dispose();
}

}