It can generate and modify data which is used by the operating system to produce different graphics display resolutions.
MakeModes was released in 1994,[1][2][3] for use with the RiscPC (initially running RISC OS 3.5).
[4] The documentation was revised for clarity by Frank Watkinson in 2003.
[5][6][7] The issuing of this revised documentation was supported by RISCOS Ltd.[7] MakeModes assists in mode setting, via the editing and creation of monitor definition files (MDFs).
It can be used to define screen modes suited to particular monitors.