looking for docs for PRINT command

[holden]

The only place I've been able to find anything is here:
https://www.imagemagick.org/script/formats.php
Is there a more comprehensive doc or examples concerning the PRINT function available? Thanks

[fmw42]

What is your IM version and platform? What do you want to print? What was your exact command line apart from the printing? What had you tried.

Imagemagick uses -write to save images. It uses txt: to convert the image to list the pixels. It use -format ... info: to list certain meta data to the terminal.

See https://www.imagemagick.org/Usage/files/ and https://www.imagemagick.org/script/comm ... .php#print

[holden]

IM on Windows, whatever version I need to make it happen

from the page I linked:

PRINT Send image to your computer printer Unix users may set the PRINTER (for 'lpr') or LPDEST (for 'lp') environment variables to select the desired printer.

I haven't tried anything yet, just looking for docs to see if printing through IM is a viable option for automation at this point.

[fmw42]

What is you want to print? Pictures or text. If pictures, then just save them to file and use some other tool such as your browser to print them to a printer.

Sorry I have never used that print feature before for printing images. I know of no other documentation for that, but it might exist somewhere. I do not know if that is Windows friendly or not.

[snibgo]

"-print" is used with a meaning as in C "printf()". It sends text to the console. It isn't concerned with physically printing on paper. "-print XYZ" is short for "-format XYZ -write info:".

[fmw42]

"-print" is used with a meaning as in C "printf()". It sends text to the console. It isn't concerned with physically printing on paper. "-print XYZ" is short for "-format XYZ -write info:".

Those do not work on my Mac (unix). Perhaps I am doing something wrong.


This works:

Code: Select all

convert rose: -format "%wx%h\n" info:

70x46


These do but give error messages:

Code: Select all

convert rose: -format "%wx%h\n" -write info:

70x46
convert: missing an image filename `info:' @ error/convert.c/ConvertImageCommand/3255.

Code: Select all

convert rose: -print "%wx%h\n"

70x46
convert: missing an image filename `%wx%h\n' @ error/convert.c/ConvertImageCommand/3255.

[snibgo]

What I mean is that anywhere you can put "-format XYZ -write info:", you can instead put "-print XYZ". For example:

Code: Select all

f:\prose\PICTURES>convert rose: -format "%wx%h\n" -write info: x.png
70x46

f:\prose\PICTURES>convert rose: -print "%wx%h\n" x.png
70x46

[fmw42]

snibgo, thanks for the clarification. I had never used -print before.

[holden]

It would seem this is a pretty obscure IM function, I will keep looking for another solution (it is surprisingly hard to find a way to send prints to printers in an automated way).

[fmw42]

I do not think Imagemagick has a direct print to printer command for images.

[snibgo]

On Unix, printers are devices which are files, so it should be easy, maybe.

On Windows, IrfanView works fine, eg:

Code: Select all

i_view64 toes.png /print

[fmw42]

For unix, perhaps see https://www.imagemagick.org/Usage/files/#delegate_print

[anthony]

Also see Identify Output Alternatives...
http://www.imagemagick.org/Usage/basics/#identify_alt

The main difference between "-identify" and "-print", is that first will be run once for every image in memory, while the later will only run once.