C# - Größe eines Strings berechnen

/// <summary>
/// Measures the size of the string.
/// </summary>
/// <param name="textToMeasure">The text to measure.</param>
/// <param name="font">The font.</param>
/// <returns></returns>
private SizeF MeasureStringSize(string textToMeasure, Font font)
{
    Bitmap bmp = new Bitmap(1, 1);
    Graphics graphics = Graphics.FromImage(bmp);            
    SizeF size = graphics.MeasureString(textToMeasure, font);
    bmp.Dispose();
    graphics.Dispose();
    return size;
}