How to hide the TextBox caret in .NETCF

I was trying to help a developer today in the smart device forums who wanted to hide the caret in the TextBox control. I started playing around with the Windows Mobile Platform SDK and I stumbled upon the methods HideCaret() and ShowCaret().

The outcome is this simple inherited TextBox control I decided to call TextBoxWithoutCaret :)

class TextBoxWithoutCaret : TextBox

{

    [DllImport("coredll.dll")]

    static extern bool HideCaret(IntPtr hwnd);

    [DllImport("coredll.dll")]

    static extern bool ShowCaret(IntPtr hwnd);

    protected override void OnGotFocus(EventArgs e)

    {

        base.OnGotFocus(e);

        HideCaret(Handle);

    }

    protected override void OnLostFocus(EventArgs e)

    {

        base.OnLostFocus(e);

        ShowCaret(Handle);

    }

}

Every time the TextBox control is focused I hide the caret and enable it again when focus is lost. This doesn't really make much practical sense and the only reason I do this is because HideCaret() is described to perform a cumulative operation meaning ShowCaret() must be called the same number of times HideCaret() was called for the caret to be visible again.