Windows uses (used?) WMF and pixels for on-screen display which would then either be used for printout via some conversion process, or a parallel construction would be maintained for output and the need to keep that in synch would often result in slight differences in output --- maybe there were other approaches.
One of the neat things in Display PostScript was one could use Interface Builder to add a print button to any window to get the underlying PS code.
Windows uses (used?) WMF and pixels for on-screen display which would then either be used for printout via some conversion process, or a parallel construction would be maintained for output and the need to keep that in synch would often result in slight differences in output --- maybe there were other approaches.
One of the neat things in Display PostScript was one could use Interface Builder to add a print button to any window to get the underlying PS code.