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authorAndrew Innes <andrewi@gnu.org>1999-01-17 18:58:43 +0000
committerAndrew Innes <andrewi@gnu.org>1999-01-17 18:58:43 +0000
commit8bc62130b3c39cee543a91cc6366c969ca8ac4ad (patch)
tree70849c31c6aa8c1c0a5df8963f1b83949b564e2b /lisp/lpr.el
parent52cf535f30ce1451cf6370af483f73a05fd5cfe9 (diff)
downloademacs-8bc62130b3c39cee543a91cc6366c969ca8ac4ad.tar.gz
(printer-name): Update docstring about usage on MS-DOS
and MS-Windows. (lpr-command) [ms-dos, windows-nt]: Initialize to empty string on DOS and Windows platforms, to indicate direct printing. Update the docstring accordingly.
Diffstat (limited to 'lisp/lpr.el')
-rw-r--r--lisp/lpr.el37
1 files changed, 25 insertions, 12 deletions
diff --git a/lisp/lpr.el b/lisp/lpr.el
index 301a50af9a8..dbc91790f5f 100644
--- a/lisp/lpr.el
+++ b/lisp/lpr.el
@@ -41,15 +41,15 @@
\(Note that PostScript files are sent to `ps-printer-name', which see.\)
On Unix-like systems, a string value should be a name understood by
-lpr's -P option.
-
-On MS-DOS and MS-Windows systems, it is the name of a printer device or
-port. Typical non-default settings would be \"LPT1\" to \"LPT3\" for
-parallel printers, or \"COM1\" to \"COM4\" or \"AUX\" for serial
-printers, or \"//hostname/printer\" for a shared network printer. You
-can also set it to a name of a file, in which case the output gets
-appended to that file. If you want to discard the printed output, set
-this to \"NUL\"."
+lpr's -P option; otherwise the value should be nil.
+
+On MS-DOS and MS-Windows systems, a string value is taken as the name of
+a printer device or port, provided `lpr-command' is set to \"\".
+Typical non-default settings would be \"LPT1\" to \"LPT3\" for parallel
+printers, or \"COM1\" to \"COM4\" or \"AUX\" for serial printers, or
+\"//hostname/printer\" for a shared network printer. You can also set
+it to the name of a file, in which case the output gets appended to that
+file. If you want to discard the printed output, set this to \"NUL\"."
:type '(choice ; could use string but then we lose completion for files.
(file :tag "Name")
(const :tag "Default" nil))
@@ -74,9 +74,22 @@ this variable should be nil."
;;;###autoload
(defcustom lpr-command
- (if (memq system-type '(usg-unix-v dgux hpux irix))
- "lp" "lpr")
- "*Name of program for printing a file."
+ (cond
+ ((memq system-type '(ms-dos windows-nt))
+ "")
+ ((memq system-type '(usg-unix-v dgux hpux irix))
+ "lp")
+ (t
+ "lpr"))
+ "*Name of program for printing a file.
+
+On MS-DOS and MS-Windows systems, if the value is an empty string then
+Emacs will write directly to the printer port named by `printer-name'.
+The programs `print' and `nprint' (the standard print programs on
+Windows NT and Novell Netware respectively) are handled specially, using
+`printer-name' as the destination for output; any other program is
+treated like `lpr' except that an explicit filename is given as the last
+argument."
:type 'string
:group 'lpr)