Problem saving image for file

Mike Bonner bonnmike at gmail.com
Sun Jul 29 05:02:05 CEST 2018


It's just how file systems work.  If the beginning character is / that
means it starts at the root of the file system.  Since you had already set
the defaultfolder, and wanted to go relative to there, you would just
specify the folder name/filename.  Or as I said, pre-pend a dot.   In fact,
2 dots .. stands for the next folder towards the root so you can do weird
things like dir ../../..  which will list the contents of a folder 3 levels
above the current.

You also don't need to actually set the defaultfolder, you could do as in
your example...

set the itemDelimiter to slash
get the effective filename of this stack
put tTempCrop into URL "binfile:" & item 1 to - 2 of it &
"/tempMedia/testimage.jpg"

In the case of the above you DO need the slash before tempMedia because
there is no trailing slash when you get item 1 to -2 of it.  But, item 1 to
-2 of it is a path starting from the root so you end up with an absolute
path rather than a relative path.  IE it would be something like
/home/username/desktop/mystackfolder/tempMedia/testimage.jpg



On Sat, Jul 28, 2018 at 8:45 PM Stephen MacLean via use-livecode <
use-livecode at lists.runrev.com> wrote:

> Thank you to all who replied!
>
> Adding the “.” solved the problem and the file saved where it was supposed
> to.
>
> Confusing, because you would think that setting the defaultFolder would
> allow you to specify the next sub folder like I did… and it’s not
> mentioned, that I saw, in the docs.
>
> Thanks again!
>
> Steve
>
> > On Jul 28, 2018, at 5:52 PM, Mike Bonner via use-livecode <
> use-livecode at lists.runrev.com> wrote:
> >
> > If you use the path /tempMedia.... that forces it to the root of the
> > filesystem and if there isn't a folder /tempmedia, it'll fail.  Either
> > leave off the preceding slash, or prepend it with a . <--(a dot) which
> > designates the current directory.
> >
> > On Sat, Jul 28, 2018 at 3:40 PM Peter Bogdanoff via use-livecode <
> > use-livecode at lists.runrev.com> wrote:
> >
> >> That is (or use variables for the filename):
> >>> export image "testimage.jpg"  to file "/tempMedia/testimage.jpg" as
> JPEG
> >>
> >>
> >>
> >>
> >>> On Jul 28, 2018, at 2:37 PM, Peter Bogdanoff via use-livecode <
> >> use-livecode at lists.runrev.com> wrote:
> >>>
> >>> Hi,
> >>>
> >>> Try using this syntax:
> >>> export image "tImage"  to file "/tempMedia/testimage.jpg" as JPEG
> >>>
> >>> I think you need binfile to read but not to write.
> >>> Peter
> >>>
> >>>
> >>>> On Jul 28, 2018, at 1:41 PM, Stephen MacLean via use-livecode <
> >> use-livecode at lists.runrev.com> wrote:
> >>>>
> >>>> Hi All,
> >>>>
> >>>> Been a long time since I’ve done file work with LC, but I’m having an
> >> issue saving an image to a file:
> >>>>
> >>>> # set the defaultFolder to the folder containing the stackfile
> >>>>
> >>>> set the itemDelimiter to slash
> >>>>
> >>>> get the effective filename of this stack
> >>>>
> >>>> set the defaultFolder to item 1 to -2 of it
> >>>>
> >>>> put tTempCrop into URL "binfile:/tempMedia/testimage.jpg"
> >>>>
> >>>>
> >>>> results in a “Can’t open file” error.
> >>>>
> >>>> Trying to save to a folder called “tempMedia” that is in the same
> >> directory as the stack.
> >>>>
> >>>> Mac OS 10.12.6, 9.01 RC1 Business.
> >>>>
> >>>> TIA,
> >>>>
> >>>> Steve MacLean
> >>>> _______________________________________________
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