Printing throught LPT1

Ruby
1

Hello, somebody has print to a printer from Ruby???

I thought a library called Etch for printing, but it doesn’t have any
documentation :s

Regards,

2

Edgar G. wrote:

Hello, somebody has print to a printer from Ruby???

I thought a library called Etch for printing, but it doesn’t have any
documentation :s

Regards,

Nobody knows???

3

On Nov 30, 9:55 pm, Edgar G. [email protected] wrote:

Posted viahttp://www.ruby-forum.com/.
It depends on your OS for one thing. I’m not aware of a project that
provides a uniform cross-platform API to printing for ruby (that
doesn’t mean there isn’t one). The closest thing I know of is
Gtk::PrintOperation from ruby-gtk [
http://ruby-gnome2.sourceforge.jp/hiki.cgi?Gtk%3A%3APrintOperation
].

HTH,
Jordan

4

Jordan Callicoat wrote:

On Nov 30, 9:55 pm, Edgar G. [email protected] wrote:

Posted viahttp://www.ruby-forum.com/.
It depends on your OS for one thing. I’m not aware of a project that
provides a uniform cross-platform API to printing for ruby (that
doesn’t mean there isn’t one). The closest thing I know of is
Gtk::PrintOperation from ruby-gtk [
http://ruby-gnome2.sourceforge.jp/hiki.cgi?Gtk%3A%3APrintOperation
].

HTH,
Jordan

Well i am in windows, how could i do that?

5

On Dec 1, 12:47 am, Edgar G. [email protected] wrote:

HTH,
Jordan

Well i am in windows, how could i do that?

Posted viahttp://www.ruby-forum.com/.

I’m not sure. I assume you could use the win32ole module that ships
with ruby 1.8 [1], or perhaps one of the third-party win32 modules
[2]. But I have no idea how. Maybe someone who knows about ruby +
win32 can help (Daniel B.?). You could also probably write a
little C extension to call the windows API, but that may be more work
than necessary. Sorry I can’t be of more help.

[1] http://www.ruby-doc.org/core/classes/WIN32OLE.html
[2]
http://raa.ruby-lang.org/cat.rhtml?category_major=Library;category_minor=Win32

Regards,
Jordan

6

On Dec 1, 2007 7:47 AM, Edgar G. [email protected] wrote:

HTH,
Jordan

Well i am in windows, how could i do that?

You can open file ‘PRN:’ (note the double colon). That should provide
you with a line printer
(i.e. no graphics, just ascii output). I’m not sure whether it is
still supported.

Other than that, I guess the easiest way would be to create pdf
somehow and print that,
either using some command line tool, or Win32API/Win32OLE.

See 'system' and printing in Windows - Ruby - Ruby-Forum for some hints.