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From: kaufman@neon.Stanford.EDU (Marc T. Kaufman)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Color TPrPort ?
Message-ID: <1991Apr27.024747.4218@neon.Stanford.EDU>
Date: 27 Apr 91 02:47:47 GMT
References: <1991Apr24.090146.15878@ecmwf.co.uk>
Organization: Computer Science Department, Stanford University, Ca , USA
Lines: 21

In article <1991Apr24.090146.15878@ecmwf.co.uk> mab@ecmwf.co.uk (Baudouin Raoult) writes:

>  I am writing a printer driver, and I'd like to know
>if it is possible to create a Color TPrPort. 
>In a printer driver, you allocate a TPrPort, which starts 
>with a GrafPort, and give it to the application. 
>The application then just draws into this port.
>But a GrafPort (b & w) is not a CGrafPort (color) and
>QDProcs ( b & w ) are not CQDProcs (color).

Yes, you can give back the kind of port you want.  But since there are
more bytes in a TPrPort+CQDProcs than in a TPrPort its probably best to
ignore any TPrPort space given to you by the application and just return
your own.  I only know of one (1) application that even tried to give me
port space.

>	Can you print using color QD ????

Certainly.  After all, its YOUR driver...  and your bottlenecks.

Marc Kaufman (kaufman@Neon.stanford.edu)