How do I get all installed fixed-width fonts?

Question

I\'m wondering if there are any simple ways to get a list of all fixed-width (monospaced) fonts installed on a user\'s system in C#?

I\'m using .net 3.5 so have acce

Answer 1

Unfortunately ToLogFont function does not fill lfPitchAndFamily field to correct values. In my case it's always 0.

One approximation to detect which fonts might be fixed is the following

    foreach ( FontFamily ff in FontFamily.Families ) {
            if ( ff.IsStyleAvailable( FontStyle.Regular ) ) {
                float diff;
                using ( Font font = new Font( ff, 16 ) ) {
                    diff = TextRenderer.MeasureText( "WWW", font ).Width - TextRenderer.MeasureText( "...", font ).Width;
                }
                if ( Math.Abs( diff ) < float.Epsilon * 2 ) {
                    Debug.WriteLine( ff.ToString() );
                }
            }

        }

Keep in mind that they are several false positives, for example Wingdings