This has been driving me crazy all day.
I need to get a font filename (eg. Arial.ttf) based on its name (Arial in this case) and whether it is bold, italic or both. Using those pieces of information, I need to find the font file so I can use it for rendering.
Some more examples:
First, to my knowledge, there is no reliable way to do that.
The Windows API deals with font families and mappings, not with font files, which are dealt with at a lower level. Also note that even if you manage to get the file name of a font, no rendering function (that I know of) will accept it, so what will you do with it?
That said, you can look in the registry key
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Fonts in order to obtain the file name of a font from its logical name. An implementation of that solution can be found here.