Mercurial > hg > xemacs-beta
annotate lisp/printer.el @ 5518:3cc7470ea71c
gnuclient: if TMPDIR was set and connect failed, try again with /tmp
2011-06-03 Aidan Kehoe <kehoea@parhasard.net>
* gnuslib.c (connect_to_unix_server):
Retry with /tmp as a directory in which to search for Unix sockets
if an attempt to connect with some other directory failed (which
may be because gnuclient and gnuserv don't share an environment
value for TMPDIR, or because gnuserv was compiled with USE_TMPDIR
turned off).
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Fri, 03 Jun 2011 18:40:57 +0100 |
| parents | 308d34e9f07d |
| children |
| rev | line source |
|---|---|
| 442 | 1 ;;; printer.el --- support for hard-copy printing in XEmacs |
| 2 | |
| 778 | 3 ;; Copyright (C) 2000, 2002 Ben Wing. |
| 442 | 4 ;; Copyright (C) 2000 Kirill Katsnelson. |
| 5 | |
| 6 ;; Maintainer: XEmacs Development Team | |
| 7 ;; Keywords: printer, printing, internal, dumped | |
| 8 | |
| 9 ;; This file is part of XEmacs. | |
| 10 | |
|
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11 ;; XEmacs is free software: you can redistribute it and/or modify it |
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12 ;; under the terms of the GNU General Public License as published by the |
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13 ;; Free Software Foundation, either version 3 of the License, or (at your |
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14 ;; option) any later version. |
| 442 | 15 |
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16 ;; XEmacs is distributed in the hope that it will be useful, but WITHOUT |
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17 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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18 ;; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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19 ;; for more details. |
| 442 | 20 |
| 21 ;; You should have received a copy of the GNU General Public License | |
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22 ;; along with XEmacs. If not, see <http://www.gnu.org/licenses/>. |
| 442 | 23 |
| 24 ;;; Synched up with: Not in FSF. | |
| 25 | |
| 26 ;;; Authorship: | |
| 27 | |
| 28 ;; Created 2000 by Ben Wing, to provide the high-level interface onto the | |
| 29 ;; print support implemented by Kirill Katsnelson. | |
| 30 | |
| 31 ;;; Commentary: | |
| 32 | |
| 33 ;; This file is dumped with XEmacs. | |
| 34 | |
| 35 | |
| 36 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 37 ;; generic printing code ;; | |
| 38 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 39 | |
| 40 ;; #### should be named print-buffer, but that's currently in | |
| 41 ;; lpr-buffer with some horrible definition: print-buffer == "print with | |
| 42 ;; headings", lpr-buffer == "print without headings", and the headings are | |
| 43 ;; generated by calling the external program "pr"! This is major stone-age | |
| 44 ;; here! | |
| 45 ;; | |
| 46 ;; I propose junking that package entirely and creating a unified, | |
| 47 ;; modern API here that will work well with modern GUI's on top of it, | |
| 48 ;; and with various different actual implementations (e.g. lpr or the | |
| 49 ;; pretty-print package on Unix, built-in msprinter support on | |
| 50 ;; Windows), where the workings of a particular implementation is | |
| 51 ;; hidden from the user and there is a consistent set of options to | |
| 52 ;; control how to print, which works across all implementations. | |
| 53 ;; | |
| 506 | 54 ;; The code here currently only really supports Windows. |
| 442 | 55 |
| 56 (defgroup printing nil | |
| 57 "Generic printing support." | |
| 58 :group 'wp) | |
| 59 | |
| 60 (defcustom printer-name nil | |
| 61 "*Name of printer to print to. | |
| 62 If nil, use default. | |
| 63 Under Windows, use `mswindows-printer-list' to get names of installed | |
| 64 printers." | |
| 65 :type 'string | |
| 66 :group 'printing) | |
| 67 | |
| 491 | 68 (defstruct Print-context pageno window start-time printer-name) |
| 69 | |
| 506 | 70 (defvar printer-current-device nil) |
| 71 | |
| 72 (defun Printer-get-device () | |
| 73 (or printer-current-device (setq printer-current-device | |
| 74 (make-device 'msprinter printer-name)))) | |
| 75 | |
| 76 (defun Printer-clear-device () | |
| 903 | 77 ;; relying on GC to delete the device is too error-prone since there |
| 78 ;; only can be one anyway. | |
| 79 (and printer-current-device (delete-device printer-current-device)) | |
| 506 | 80 (setq printer-current-device nil)) |
| 81 | |
| 491 | 82 (defcustom printer-page-header '((face bold date) nil (face bold buffer-name)) |
| 442 | 83 "*Controls printed page header. |
| 84 | |
| 85 This can be: | |
| 86 - nil. Header is not printed. | |
| 87 - An fbound symbol or lambda expression. The function is called with | |
| 88 one parameter, a print-context object, every time the headers need | |
| 89 to be set up. It can use the function `print-context-property' to | |
| 90 query the properties of this object. The return value is treated as | |
| 491 | 91 if it was literally specified: i.e. it will be reprocessed. |
| 442 | 92 - A list of up to three elements, for left, center and right portions |
| 93 of the header. Each of these can be | |
| 94 - nil, not to print the portion | |
| 95 - A string, which will be printed literally. | |
| 96 - A predefined symbol, on of the following: | |
| 491 | 97 printer-name Name of printer being printed to |
| 442 | 98 short-file-name File name only, no path |
| 99 long-file-name File name with its path | |
| 100 buffer-name Buffer name | |
| 101 date Date current when printing started | |
| 102 time Time current when printing started | |
| 103 page Current printout page number, 1-based | |
| 104 user-id User logon id | |
| 105 user-name User full name | |
| 491 | 106 - A list of three elements: (face FACE-NAME EXPR). EXPR is any of the |
| 107 items given here. The item will be displayed in the given face. | |
| 442 | 108 - A cons of an extent and any of the items given here. The item will |
| 109 be displayed using the extent's face, begin-glyph and end-glyph | |
| 110 properties. | |
| 111 - A list, each element of which is any of the items given here. | |
| 112 Each element of the list is rendered in sequence. For example, | |
| 113 '(\"Page \" page) is rendered as \"Page 5\" on the fifth page. | |
| 114 - An fbound symbol or lambda expression, called with one parameter, | |
| 115 a print-context object, as above. The return value is treated as | |
| 116 if it was literally specified: i.e. it will be reprocessed." | |
| 117 :type 'sexp | |
| 118 :group 'printing) | |
| 119 | |
| 491 | 120 (defcustom printer-page-footer '(nil (face bold ("Page " page))) |
| 442 | 121 "*Controls printed page footer. |
| 122 | |
| 123 Format is the same as `printer-page-header'." | |
| 124 :type 'sexp | |
| 125 :group 'printing) | |
| 126 | |
| 491 | 127 (defun generate-header-element (element context) |
| 128 (cond ((null element) nil) | |
| 129 ((stringp element) (insert element)) | |
| 130 ((memq element '(printer-name | |
| 131 short-file-name long-file-name buffer-name | |
| 132 date time page user-id user-name)) | |
| 133 (insert (print-context-property context element))) | |
| 134 ((and (consp element) (eq 'face (car element))) | |
| 135 (let ((p (point))) | |
| 136 (generate-header-element (third element) context) | |
| 137 (let ((x (make-extent p (point)))) | |
| 138 (set-extent-face x (second element))))) | |
| 139 ((and (consp element) (extentp (car element))) | |
| 140 (let ((p (point))) | |
| 141 (generate-header-element (cdr element) context) | |
| 142 (let ((x (make-extent p (point)))) | |
| 143 (set-extent-face x (extent-face (car element))) | |
| 144 (set-extent-begin-glyph x (extent-begin-glyph (car element))) | |
| 145 (set-extent-end-glyph x (extent-end-glyph (car element)))))) | |
| 146 ((listp element) | |
| 147 (mapcar #'(lambda (el) (generate-header-element el context)) | |
| 148 element)) | |
| 149 ((functionp element) | |
| 150 (generate-header-element (funcall element context) context)) | |
| 151 (t (error 'invalid-argument "Unknown header element" element)))) | |
| 152 | |
| 153 (defun generate-header-line (spec context) | |
| 154 (let* ((left (first spec)) | |
| 155 (middle (second spec)) | |
| 156 (right (third spec)) | |
| 157 (left-start (point)) | |
| 158 (middle-start (progn (generate-header-element left context) | |
| 159 (point))) | |
| 160 (right-start (progn (generate-header-element middle context) | |
| 161 (point))) | |
| 162 (right-end (progn (generate-header-element right context) | |
| 163 (point))) | |
| 164 (left-width (- middle-start left-start)) | |
| 165 (middle-width (- right-start middle-start)) | |
| 166 (right-width (- right-end right-start)) | |
| 1346 | 167 (winwidth (- (window-width (Print-context-window context)) 2)) |
| 491 | 168 (spaces1 (max (- (/ (- winwidth middle-width) 2) left-width) 0)) |
| 169 (spaces2 (max (- (- winwidth right-width) | |
| 170 (+ left-width spaces1 middle-width)) | |
| 171 0))) | |
| 172 (goto-char right-start) | |
| 173 (insert-char ?\ spaces2) | |
| 174 (goto-char middle-start) | |
| 175 (insert-char ?\ spaces1))) | |
| 176 | |
| 442 | 177 (defun print-context-property (print-context prop) |
| 178 "Return property PROP of PRINT-CONTEXT. | |
| 179 | |
| 180 Valid properties are | |
| 181 | |
| 491 | 182 print-buffer Buffer being printed |
| 183 print-window Window on printer device containing print buffer | |
| 184 print-frame Frame on printer device corresponding to current page | |
| 185 print-device Device referring to printer | |
| 186 print-start-time Time current when printing started (`current-time' format) | |
| 187 print-page Current printout page number, 1-based | |
| 188 printer-name Name of printer being printed to | |
| 442 | 189 short-file-name File name only, no path |
| 190 long-file-name File name with its path | |
| 191 buffer-name Buffer name | |
| 491 | 192 date Date current when printing started (as a string) |
| 193 time Time current when printing started (as a string) | |
| 194 page Current printout page number, 1-based (as a string) | |
| 195 user-id User logon id (as a string) | |
| 442 | 196 user-name User full name" |
| 491 | 197 (let* ((window (Print-context-window print-context)) |
| 198 (pageno (Print-context-pageno print-context)) | |
| 199 (start-time (Print-context-start-time print-context)) | |
| 200 (printer-name (Print-context-printer-name print-context)) | |
| 201 (buffer (window-buffer window))) | |
| 202 (case prop | |
| 203 (print-buffer buffer) | |
| 204 (print-window window) | |
| 205 (print-frame (window-frame window)) | |
| 206 (print-device (frame-device (window-frame window))) | |
| 207 (print-start-time start-time) | |
| 208 (print-page pageno) | |
| 209 (printer-name printer-name) | |
| 210 (short-file-name (let ((name (buffer-file-name buffer))) | |
| 211 (if name (file-name-nondirectory name) ""))) | |
| 212 (long-file-name (let ((name (buffer-file-name buffer))) | |
| 213 (or name ""))) | |
| 214 (buffer-name (buffer-name buffer)) | |
| 215 (date (format-time-string "%x" start-time)) | |
| 216 (time (format-time-string "%X" start-time)) | |
| 217 (page (format "%d" pageno)) | |
| 218 (user-id (format "%d" (user-uid))) | |
| 219 (user-name (format "%d" (user-login-name))) | |
| 220 (t (error 'invalid-argument "Unrecognized print-context property" | |
| 221 prop))))) | |
| 442 | 222 |
| 506 | 223 (defun generic-page-setup () |
| 224 "Display the Page Setup dialog box. | |
| 225 Changes made are recorded internally." | |
| 226 (interactive) | |
| 227 (let* ((d (Printer-get-device)) | |
| 228 (props | |
| 229 (condition-case err | |
| 230 (make-dialog-box 'page-setup :device d | |
| 778 | 231 :properties (declare-boundp |
| 232 default-msprinter-frame-plist)) | |
| 506 | 233 (error |
| 234 (Printer-clear-device) | |
| 235 (signal (car err) (cdr err)))))) | |
| 236 (while props | |
| 778 | 237 (with-boundp 'default-msprinter-frame-plist |
| 238 (setq default-msprinter-frame-plist | |
| 239 (plist-put default-msprinter-frame-plist (car props) | |
| 240 (cadr props)))) | |
| 506 | 241 (setq props (cddr props))))) |
| 242 | |
| 491 | 243 (defun generic-print-buffer (&optional buffer display-print-dialog) |
| 444 | 244 "Print buffer BUFFER using a printing method appropriate to the O.S. being run. |
| 442 | 245 Under Unix, `lpr' is normally used to spool out a no-frills version of the |
| 246 buffer, or the `ps-print' package is used to pretty-print the buffer to a | |
| 247 PostScript printer. Under MS Windows, the built-in printing support is used. | |
| 248 | |
| 491 | 249 If DISPLAY-PRINT-DIALOG is t, the print dialog will first be |
| 250 displayed, allowing the user to select various printing settings | |
| 251 \(e.g. which printer to print to, the range of pages, number of copies, | |
| 252 modes such landscape/portrait/2-up/4-up [2 or 4 (small!) logical pages | |
| 253 per physical page], etc.). At this point the user can cancel the printing | |
| 254 operation using the dialog box, and `generic-print-buffer' will not print | |
| 255 anything. When called interactively, use a prefix arg to suppress the | |
| 256 display of the print dialog box. | |
| 257 | |
| 444 | 258 If BUFFER is nil or omitted, the current buffer is used." |
| 503 | 259 (interactive (list nil (not current-prefix-arg))) |
| 903 | 260 (condition-case err |
| 261 (let* ((print-region (and (interactive-p) (region-active-p))) | |
| 262 (start (if print-region (region-beginning) (point-min buffer))) | |
| 263 (end (if print-region (region-end) (point-max buffer)))) | |
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264 (if (or (not (valid-device-type-p 'msprinter)) |
| 903 | 265 (not display-print-dialog)) |
| 266 (generic-print-region start end buffer) | |
| 267 (let* ((d (Printer-get-device)) | |
| 268 (props (make-dialog-box 'print :device d | |
| 510 | 269 :allow-selection print-region |
| 270 :selected-page-button | |
| 903 | 271 (if print-region 'selection 'all)))) |
| 272 (and props | |
| 273 (let ((really-print-region | |
| 274 (eq (plist-get props 'selected-page-button) 'selection))) | |
| 275 (generic-print-region (if really-print-region start | |
| 276 (point-min buffer)) | |
| 277 (if really-print-region end | |
| 278 (point-max buffer)) | |
| 279 buffer d props)))))) | |
| 280 (error | |
| 281 ;; Make sure we catch all errors thrown from the native code. | |
| 282 (Printer-clear-device) | |
| 283 (signal (car err) (cdr err))))) | |
| 442 | 284 |
| 491 | 285 (defun generic-print-region (start end &optional buffer print-device props) |
| 442 | 286 "Print region using a printing method appropriate to the O.S. being run. |
| 444 | 287 The region between START and END of BUFFER (defaults to the current |
| 288 buffer) is printed. | |
| 442 | 289 |
| 290 Under Unix, `lpr' is normally used to spool out a no-frills version of the | |
| 291 buffer, or the `ps-print' package is used to pretty-print the buffer to a | |
| 491 | 292 PostScript printer. Under MS Windows, the built-in printing support is used. |
| 293 | |
| 294 Optional PRINT-DEVICE is a device, already created, to use to do the | |
| 295 printing. This is typically used when this function was invoked from | |
| 296 `generic-print-buffer' and it displayed a dialog box. That function created | |
| 297 the device, and then the dialog box stuffed it with the user's selections | |
| 298 of how the buffer should be printed. | |
| 299 | |
| 300 PROPS, if given, is typically the plist returned from the call to | |
| 301 `make-dialog-box' that displayed the Print box. It contains properties | |
| 302 relevant to us when we print. | |
| 303 | |
| 304 Recognized properties are the same as those in `make-dialog-box': | |
| 305 | |
| 306 name Printer device name. If omitted, the current system-selected | |
| 307 printer will be used. | |
| 308 from-page First page to print, 1-based. If omitted, printing starts from | |
| 309 the beginning. | |
| 310 to-page Last page to print, inclusive, If omitted, printing ends at | |
| 311 the end. | |
| 312 copies Number of copies to print. If omitted, one copy is printed." | |
|
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554b9d31e7a5
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Aidan Kehoe <kehoea@parhasard.net>
parents:
1346
diff
changeset
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313 (cond ((valid-device-type-p 'msprinter) |
| 510 | 314 ;; loop, printing one copy of document per loop. kill and |
| 315 ;; re-create the frame each time so that we eject the piece | |
| 316 ;; of paper at the end even if we're printing more than one | |
| 317 ;; page per sheet of paper. | |
| 707 | 318 (let ((copies (plist-get props 'copies 1)) |
| 319 ;; This is not relevant to printing and can mess up | |
| 320 ;; msprinter frame sizing | |
| 321 default-frame-plist) | |
| 510 | 322 (while (> copies 0) |
| 323 (let (d f header-buffer footer-buffer) | |
| 324 (setq buffer (decode-buffer buffer)) | |
| 325 (unwind-protect | |
| 326 (with-current-buffer buffer | |
| 327 (save-restriction | |
| 328 (narrow-to-region start end) | |
| 329 (setq d (or print-device (Printer-get-device))) | |
| 330 (setq f (make-frame | |
| 331 (list* 'name | |
| 332 (concat | |
| 491 | 333 (substitute ?_ ?. (buffer-name buffer)) |
| 334 " - XEmacs") | |
| 510 | 335 '(menubar-visible-p |
| 336 nil | |
| 337 has-modeline-p nil | |
| 338 default-toolbar-visible-p nil | |
| 339 default-gutter-visible-p nil | |
| 340 minibuffer none | |
| 341 modeline-shadow-thickness 0 | |
| 342 vertical-scrollbar-visible-p nil | |
| 903 | 343 horizontal-scrollbar-visible-p nil |
| 344 [default foreground] "black" | |
| 345 [default background] "white")) | |
| 510 | 346 d)) |
| 347 (let* ((w (frame-root-window f)) | |
| 348 (vertdpi | |
| 349 (cdr (device-system-metric d 'device-dpi))) | |
| 350 (pixel-vertical-clip-threshold (/ vertdpi 2)) | |
| 351 (from-page (plist-get props 'from-page 1)) | |
| 352 (to-page (plist-get props 'to-page)) | |
| 353 (context (make-Print-context | |
| 354 :start-time (current-time) | |
| 355 ;; #### bogus! we need accessors for | |
| 356 ;; print-settings objects. | |
| 357 :printer-name | |
| 358 (or (plist-get props 'name) | |
| 359 printer-name | |
| 778 | 360 (declare-fboundp |
| 361 (mswindows-get-default-printer) | |
| 362 )))) | |
| 510 | 363 header-window |
| 364 footer-window) | |
| 903 | 365 |
| 510 | 366 (when printer-page-header |
| 367 (let ((window-min-height 2)) | |
| 368 (setq header-window w) | |
| 369 (setq w (split-window w 2))) | |
| 370 (setq header-buffer | |
| 371 (generate-new-buffer " *header*")) | |
| 372 (set-window-buffer header-window header-buffer)) | |
| 903 | 373 |
| 510 | 374 (when printer-page-footer |
| 375 (let ((window-min-height 2)) | |
| 376 (setq footer-window | |
| 377 (split-window w (- (window-height w) 2)))) | |
| 378 (setq footer-buffer | |
| 379 (generate-new-buffer " *footer*")) | |
| 380 (set-window-buffer footer-window footer-buffer)) | |
| 903 | 381 |
| 510 | 382 (setf (Print-context-window context) w) |
| 903 | 383 |
| 510 | 384 (let ((last-end 0) ; bufpos at end of previous page |
| 385 reached-end ; t if we've reached the end of the | |
| 491 | 386 ; text we're printing |
| 510 | 387 (pageno 1)) |
| 388 (set-window-buffer w buffer) | |
| 389 (set-window-start w start) | |
| 491 | 390 |
| 510 | 391 ;; loop, printing one page per loop |
| 392 (while (and (not reached-end) | |
| 393 ;; stop at end of region of text or | |
| 394 ;; outside of ranges of pages given | |
| 395 (or (not to-page) (<= pageno to-page))) | |
| 491 | 396 |
| 510 | 397 (setf (Print-context-pageno context) pageno) |
| 491 | 398 |
| 510 | 399 ;; only actually print the page if it's in the |
| 400 ;; range. | |
| 401 (when (>= pageno from-page) | |
| 402 (when printer-page-header | |
| 403 (with-current-buffer header-buffer | |
| 404 (erase-buffer) | |
| 405 (generate-header-line printer-page-header | |
| 406 context) | |
| 407 (goto-char (point-min)) | |
| 408 (set-window-start header-window | |
| 409 (point-min)))) | |
| 491 | 410 |
| 510 | 411 (when printer-page-footer |
| 412 (with-current-buffer footer-buffer | |
| 413 (erase-buffer) | |
| 414 (insert "\n") | |
| 415 (generate-header-line printer-page-footer | |
| 416 context) | |
| 417 (goto-char (point-min)) | |
| 418 (set-window-start footer-window | |
| 419 (point-min)))) | |
| 491 | 420 |
| 510 | 421 (redisplay-frame f t) |
| 422 (print-job-eject-page f) | |
| 423 ) | |
| 424 ;; but use the GUARANTEE argument to `window-end' | |
| 425 ;; so that we get the right value even if we | |
| 426 ;; didn't do a redisplay. | |
| 427 (let ((this-end (window-end w t)) | |
| 428 (pixvis | |
| 429 (window-last-line-visible-height w))) | |
| 430 ;; in case we get stuck somewhere, bow out | |
| 431 ;; rather than printing an infinite number of | |
| 432 ;; pages. #### this will fail with an image | |
| 433 ;; bigger than an entire page. but we really | |
| 434 ;; need this check here. we should be more | |
| 435 ;; clever in our check, to deal with this case. | |
| 436 (if (or (= this-end last-end) | |
| 437 ;; #### fuckme! window-end returns a | |
| 438 ;; value outside of the valid range of | |
| 439 ;; buffer positions!!! | |
| 440 (>= this-end end)) | |
| 441 (setq reached-end t) | |
| 442 (setq last-end this-end) | |
| 443 (set-window-start w this-end) | |
| 444 (if pixvis | |
| 445 (with-selected-window w | |
| 446 ;; #### scroll-down should take a | |
| 447 ;; window arg. | |
| 448 (let ((window-pixel-scroll-increment | |
| 449 pixvis)) | |
| 450 (scroll-down 1)))))) | |
| 546 | 451 (setq pageno (1+ pageno))))))) |
| 452 (and f (delete-frame f)) | |
| 453 (and header-buffer (kill-buffer header-buffer)) | |
| 454 (and footer-buffer (kill-buffer footer-buffer)))) | |
| 510 | 455 (setq copies (1- copies))))) |
| 442 | 456 ((and (not (eq system-type 'windows-nt)) |
| 503 | 457 (fboundp 'lpr-region)) |
| 872 | 458 (declare-fboundp (lpr-region start end))) |
| 442 | 459 (t (error "No print support available")))) |