OSX printing of images issue

Paul Dupuis paul at researchware.com
Thu Mar 29 01:38:37 CEST 2018


Marty,

I also hope there is an answer, but the lack of responses to my post on
this list suggests either very few people are printing images or at
least very few are have ever run into this issue.

Some images print fine and some do not and I can not find anything
consistent about the images themselves to suggest why one would be fine
and one would not. In fact, in a few cases the same image has printed as
a narrow black vertical bar and also on another attempt printed correctly.

My next effort will be to see if I can isolate a set of images into a
simplified test stack that reproduces this problem.


On 3/28/2018 7:13 PM, Knapp Martin via use-livecode wrote:
> I’m curious to know what you find. I’m about to embark on updating 2 apps from LC 6.6.5 to the latest in order to get ready for Apple requiring 64 bit. Both apps are heavily printing oriented, so I hope there is an answer here.
> ---
> Marty
>
>
>> On Mar 28, 2018, at 8:28 AM, Paul Dupuis via use-livecode <use-livecode at lists.runrev.com> wrote:
>>
>> I have a print subsystem for my application that prints a particular set
>> of data by laying our the page (sizing the card to the paper, allowing
>> for margins, etc, where the content area of the page is a single image
>> object. The resizeQuality is set to "best" and alwaysBuffer is true
>>
>> When I print under Windows (8.x or 10) to a real printer or to PDF, the
>> result appears as expected.
>>
>> When I print under OSX (10.9.5 and up) some of the images are messed up:
>> Some are squished to a vertical bar a few pixels wide. Some are the
>> right size but are just a big rectangle of black and color stripes. Some
>> print properly. This happens whether to Preview PDF or to a real printer.
>>
>> This occurs under LC8.1.9 (and all the way back to at least LC 6.7.11)
>>
>> I have stepped through my print system in the debugger and each page
>> appears exactly as it should (correctly layed out with a good looking
>> image) before the "print card" command.
>>
>> Has anyone experienced this and have any ideas for a work-around or a fix?
>>
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