Re: Standalone Magnify Problem

[hh via use-livecode]

> Peter R. wrote:
> I have it working fine when I'm in the development environment
> but it's not working reliably in a standalone app. 

a) Did you already check to have the same paintcompression in both environments?
b) If you make such large images (why?) you may get a conflict with the 
8bit-coords
limit. May be the standalone engine has still more of such limits included for 
'formatted'-measurements than the IDE.
c) Did you already check to have the same resizequality in both environments?
("best" may create an alphachannel)
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Standalone Magnify Problem

[Peter Reid via use-livecode]

I'm following an approach published sometime ago 
(http://forums.livecode.com/viewtopic.php?f=7&t=8288 
) to provide a floating 
magnifier over the top of quite a large image.  I have it working fine when I'm 
in the development environment but it's not working reliably in a standalone 
app.  Here's a summary of what I'm doing:

- I generate images of 1,000 x 1,000 pixels, created using the export snapshot 
facility
- my app lets the user select a magnification factor in the range 4-16 times 
the original
- I scale-up a copy of the image (making an image of 16,000 x 16,000 say) and 
magnify this scaled copy
- I present the magnified view through a group using the hScroll/vScroll and 
formattedHeight/formattedWidth properties

The above works well when in the development environment.  When it's a 
standalone app I get various incorrect behaviours:

- the magnified view is all white, or all black
- the magnified view is of the wrong part of the image
- it sometimes works in the Mac standalone but not the Windows standalone

I have built the standalone using lc 8.1.2, lc 8.1.3, lc 8.1.4-rc1 and lc 
9.0.0-dp6.  In all cases I have tried building using automatic inclusions and 
manual inclusion selection, but none of this makes it work in the standalone!  
For manual selection I tried inluding every option available for Mac & Windows 
irrespective of whether I needed it or not.  However, even when I include 
"everything", it still doesn't work in the standalones!

The problems imply the lack of some inclusion and/or memory issues.  Has anyone 
come across this and, if so do you have a solution?!

Thanks.

Peter
--
Peter Reid
Loughborough, UK


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