On 2024-03-19 13:29, debian-u...@howorth.org.uk wrote:
<snipped>
There's a bug in your program above, when used for PNG or JPEG. It's a
perl error and I expect you would have got an answer on perlmonks as I
suggested.
The error is described on
https://docstore.mik.ua/orelly/perl3/tk/ch17_01.htm
Look for "Notice the Photo image formats JPEG, PNG, and TIFF—not part
of the Perl/Tk distribution—must be specifically imported."
Only the .bmp file displays other files have error.
"Uncaught exception from user code:
couldn't recognize data in image file "images/red.png" at
/usr/lib/x86_64-linux-gnu/perl5/5.38/Tk/Image.pm line 21.
Tk::Image::new("Tk::Photo", MainWindow=HASH(0x560632dc9098),
"-file", "images/red.png") called at
/usr/lib/x86_64-linux-gnu/perl5/5.38/Tk/Image.pm line 63
Tk::Image::__ANON__(MainWindow=HASH(0x560632dc9098), "-file",
"images/red.png") called at ./test-image.pl line 8"
I've installed
Tk, libgraphics-magick-perl, libimage-imlib2-perl, tkagif, tkblt,
tklib, libtk-img, tkpng.
Now that I know .bmp works I can use that.
Wonder tho' why others don't display, Bookworm and Trixie.
If there is some other module to include I can't discover what it's
name is as yet.
Tk::Photo is a module but seems to be included in Perl/Tk
I'm not really understanding if the Perl/Tk is a rewrite or an
interface to Tk modules.
You might want to read the book! :) Or even the CPAN entry for Tk if
you want to understand more.
Chapter 17 starts by saying Perl/Tk supports the bitmap, Pixmap, and
Photo image types.
xbm, xpm, bmp, png, xbm, ppm, jpg, xpm, gif, tif =o)
Adding Tk::PNG, Tk::JPEG indeed allows those filetypes to be used.
PS: My emails to list take forever, if at all, to arrive here. I saw
Gareth's mail on the debian website but that hasn't arrived here.
That may be a feature of gmail so I guess I should subscribe from
another email address to check.
mick
