static extern bool GetTextExtentPoint32(IntPtr hdc, string lpString,

static extern bool GetTextExtentPoint32(IntPtr hdc, string lpString, int cbString, out SIZE lpSize);

    GDI.GetTextExtentPoint32(hdc, text, text.Length,out sz);

static extern bool GetTextExtentPoint32(IntPtr hdc, string lpString,

static extern bool GetTextExtentPoint32(IntPtr hdc, string lpString,

    GDI.GetTextExtentPoint32(hdc, text, text.Length,out sz);