26 Mar 95, Jeff Patten writes to Daniel Creeron:

 >> I'm working on an imaging package and I need to have my
 >> co-ordinate system mimic Windows.  The OS/2 origin is the
 >> lower-left (true cartesian) while windows is the upper-left.

 >> My question:  "Does anyone know how to remap the origin to
 >> match windows?"

 >    Doesn't the difference amount to an offset in the y-axis?  Presumably
 > you could just add (or subtract, as appropriate) the screen height to
 > convert between the two.

Not quite.  To convert, you have to subtract the Windows offset from the height
to get the PM offset.  The problem with doing this is, of course, that you
have to find all the places where it is appropriate to do that.

- Jon

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