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- Path: sparky!uunet!lax.pe-nelson.com!lax!twbrown
- From: twbrown@PE-Nelson.COM (Tom W. Brown)
- Newsgroups: comp.os.ms-windows.programmer.misc
- Subject: Re: Changing horses in midstream.
- Message-ID: <754@lax.lax.pe-nelson.com>
- Date: 26 Jan 93 21:33:11 GMT
- References: <1k1886INNbek@iguana.cis.ohio-state.edu> <753@lax.lax.pe-nelson.com>
- Sender: news@lax.pe-nelson.com
- Organization: PE-Nelson
- Lines: 35
-
- 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).
-
-
- ----------------------------------------------------------------------------
- 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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