Measure a String without using a Graphics object?

Question

I am using pixels as the unit for my font. In one place, I am performing a hit test to check if the user has clicked within the bounding rectangle of some text on screen. I

Answer 1

This example does great job of illustrating the use of FormattedText. FormattedText provides low-level control for drawing text in Windows Presentation Foundation (WPF) applications. You can use it to measure the Width of a string with a particular Font without using a Graphics object.

public static float Measure(string text, string fontFamily, float emSize)
{
    FormattedText formatted = new FormattedText(
        item, 
        CultureInfo.CurrentCulture, 
        System.Windows.FlowDirection.LeftToRight, 
        new Typeface(fontFamily), 
        emSize, 
        Brushes.Black);

    return formatted.Width;
}

Include WindowsBase and PresentationCore libraries.