Current File : //usr/share/texlive/texmf-dist/metafont/misc/mode2dpixy.mf

% Usage: mf '\mode=what_ever_mode; \input mode2dpi'

let myexit = primitive_end_;
mode_setup;
string xdpi;
xdpi := decimal round pixels_per_inch;
message "XDPI = " & xdpi;
string ydpi;
ydpi := decimal round (pixels_per_inch * aspect_ratio);
message "YDPI = " & ydpi;
fontmaking := 0;
myexit;