FontDPI Entries

The FontDPI subkey in the following Registry path indicates the default number of dots per inch (DPI):

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion
    \FontDPI

LogPixels REG_DWORD 0x78 or 0x60

Determines the resources used by the system, such as bitmap resolution for icons and toolbar buttons, as well as the system font size.

120 DPI (0x78) is what is generally called "Large Fonts" and 96 DPI (0x60) is "Small Fonts."

This value only indicates to the system which fonts and resources to use. Reboot the machine for the changes to apply. You can also change this value by using the Display option in Control Panel.

Default: 0x60