Re: multiple /HWResolution

In article <MPG.216ed916ba1f4214989695@xxxxxxxxxxxxxxx>,
ken <ken@xxxxxxxxxxx> wrote:

In article <1191492943.411605.192580@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
francois.d.robert@xxxxxxxxx says...

I wouldn't have said so. Ghostscript is a generic interpreter which is
capable of being configured to drive many different output devices.
However, out of the box, it doesn't really drive any specifically.

I wrote so, because if GS returns /x11 (or whatever) for the current
page device,

It can't return '/x11' for the current page device, because
currentpagedevice returns a dictionary. One of the members of that
dictionary (see below) is the OutputDevice, either a name or string.
Errr.... you're right, my wording was not a model of clarity. I was of
course referring to the /OutputDevice key of the current page device.

Are you saying that currentpagdevice returns a valid /OutputDevice
member in the dictionary, but that device is not listed as a resource ?
That would be a bug, because the /OutputDevice is required to be a name
matching one of the /OutputDevice resources.
I think that's what happens with GS.
Here is what a snippet and its output on GS 8.54 (Mac) and OS X
Preview.app (Distiller) :

%!PS
(product = ") print product print (") =
(instances of /OutputDevice category = ) =
(*) { (") print print (") =} 50 string /OutputDevice resourceforall
currentpagedevice /OutputDevice
2 copy known
{ get
(/OutputDevice in current page device: ) print ==
}{ pop pop
(/OutputDevice not found in current page device ) =
} ifelse
%%EOF

product = "PSNormalizer.framework"
instances of /OutputDevice category =
"Printer"
/OutputDevice in current page device: /Printer

product = "AFPL Ghostscript"
instances of /OutputDevice category =
/OutputDevice in current page device: /x11


The page device dictionary and the /OutputDevice are different.
Agreed.

________________________________________________________
François Robert
.

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