🚀 go-pugleaf

In article <753@lax.lax.pe-nelson.com>, twbrown@PE-Nelson.COM (Tom W. Brown) writes:
|> In article <1k1886INNbek@iguana.cis.ohio-state.edu>, guzman@cis.ohio-state.edu (jonatan guzman) writes:
|> |> ...well, just about!
|> |> 
|> |> I have a program that needs to print a number of documents, and needs to change
|> |> the mode (landscape/portrait) depending on the document. Anybody out there 
|> |> know how to do this?
|> 
|> There are two basic approaches:
|> 
|>    1) Always plot in what is essentially portrait mode and tell the printer
|>       driver to flip into Portrait or Landscape mode via a call to
|>       ExtDeviceMode().  See documentation for that call for more info.
|> 
|>    2) Always assume that the printer is in Portrait mode and setup your
|>       mapping mode to give the effect of portrait or landscape.
|> 
|> I've done it both ways.  (1) may be easier if you've already got the graphics
|> code written and it makes hard to change assumptions about the mapping mode.
|> (2) can be pretty powerful since you can do fancy (albeit mostly useless :-)
|> things like printing upside-down and backwards by altering your window and
|> viewport mapping.

This is, of course, a little understated (must have grabbed the decaf by
mistake :-).  For (2), you need to parameterize your drawing routines so that
they know whether to do portrait or landscape mode.  For landscape mode
you must swap x and y values to the GDI calls in an appropriate fashion (as
well as rotating fonts appropriately).


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Tom Brown               |  "She turned me into a newt...
PE Nelson Systems       |                                  ... I got better"
twbrown@pe-nelson.com   |                    Monty Python and the Holy Grail
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