Printing options

[James Richard Tyrer]

Kurt Pfeifle wrote:
> James Richard Tyrer wrote:
> 
>> I'm not exactly clear on this.  My PPD for my old line printer has:
>> 
>> *DefaultResolution: 360dpi *Resolution 60dpi: "1 dict dup
>> /HWResolution [60 60] put setpagedevice" *Resolution 180dpi: "1 dict
>> dup /HWResolution [180 180] put setpagedevice" *Resolution 360dpi: "1
>> dict dup /HWResolution [360 360] put setpagedevice"
>> 
>> So, it has both a "DefaultResolution" and three "Resolution" settings
>> 
> 
> 
> No it has only three "Resolution" settings, one of which is the default.
> 
Sure looks like "DefaultResolution" to me. :-)

> If you select to "Configure Printer" in the web interface, you may be 
> able to change it to a different default resolution. The default
> resolution is used by the printer's PS interpreter

What we are discussing here is what use the KDE application and/or the Qt
PostScript driver is going to make of these.

> (which may be CUPS if it is a non PS printer) to apply if the
> application-generated PS doesn't include another resolution
> directive....

CUPS may also read this information -- to choose the correct driver 
settings -- but all the PS interpreter uses is the information which is 
*in* the PS file.  Yes, I know that GhostScript accepts resolution on the 
command line, but IIUC, that is passed to the GhostScript "Device" (the 
driver).

> Similar goes for other user-selectable options: various settings
> possible, one of which is the default.
> 
Yes, I know that, but was having trouble understanding exactly what Till said.

So, the question remains, does the Qt PostScript driver use the resolution 
to interpolate an image.  It appears not.

--
JRT