No, we use SendMessage just the same way. The .NET framework also uses SendMessage (declared in internal class UnsafeNativeMethods).
public static extern IntPtr SendMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);
>Did you guys figure out how to do SendMessage in C# other than doing a DllImport on user32.dll?
>You would think msft would provide a wrapper for this widely used call....