Mercurial > hg > xemacs-beta
view src/device-msw.c @ 665:fdefd0186b75
[xemacs-hg @ 2001-09-20 06:28:42 by ben]
The great integral types renaming.
The purpose of this is to rationalize the names used for various
integral types, so that they match their intended uses and follow
consist conventions, and eliminate types that were not semantically
different from each other.
The conventions are:
-- All integral types that measure quantities of anything are
signed. Some people disagree vociferously with this, but their
arguments are mostly theoretical, and are vastly outweighed by
the practical headaches of mixing signed and unsigned values,
and more importantly by the far increased likelihood of
inadvertent bugs: Because of the broken "viral" nature of
unsigned quantities in C (operations involving mixed
signed/unsigned are done unsigned, when exactly the opposite is
nearly always wanted), even a single error in declaring a
quantity unsigned that should be signed, or even the even more
subtle error of comparing signed and unsigned values and
forgetting the necessary cast, can be catastrophic, as
comparisons will yield wrong results. -Wsign-compare is turned
on specifically to catch this, but this tends to result in a
great number of warnings when mixing signed and unsigned, and
the casts are annoying. More has been written on this
elsewhere.
-- All such quantity types just mentioned boil down to EMACS_INT,
which is 32 bits on 32-bit machines and 64 bits on 64-bit
machines. This is guaranteed to be the same size as Lisp
objects of type `int', and (as far as I can tell) of size_t
(unsigned!) and ssize_t. The only type below that is not an
EMACS_INT is Hashcode, which is an unsigned value of the same
size as EMACS_INT.
-- Type names should be relatively short (no more than 10
characters or so), with the first letter capitalized and no
underscores if they can at all be avoided.
-- "count" == a zero-based measurement of some quantity. Includes
sizes, offsets, and indexes.
-- "bpos" == a one-based measurement of a position in a buffer.
"Charbpos" and "Bytebpos" count text in the buffer, rather than
bytes in memory; thus Bytebpos does not directly correspond to
the memory representation. Use "Membpos" for this.
-- "Char" refers to internal-format characters, not to the C type
"char", which is really a byte.
-- For the actual name changes, see the script below.
I ran the following script to do the conversion. (NOTE: This script
is idempotent. You can safely run it multiple times and it will
not screw up previous results -- in fact, it will do nothing if
nothing has changed. Thus, it can be run repeatedly as necessary
to handle patches coming in from old workspaces, or old branches.)
There are two tags, just before and just after the change:
`pre-integral-type-rename' and `post-integral-type-rename'. When
merging code from the main trunk into a branch, the best thing to
do is first merge up to `pre-integral-type-rename', then apply the
script and associated changes, then merge from
`post-integral-type-change' to the present. (Alternatively, just do
the merging in one operation; but you may then have a lot of
conflicts needing to be resolved by hand.)
Script `fixtypes.sh' follows:
----------------------------------- cut ------------------------------------
files="*.[ch] s/*.h m/*.h config.h.in ../configure.in Makefile.in.in ../lib-src/*.[ch] ../lwlib/*.[ch]"
gr Memory_Count Bytecount $files
gr Lstream_Data_Count Bytecount $files
gr Element_Count Elemcount $files
gr Hash_Code Hashcode $files
gr extcount bytecount $files
gr bufpos charbpos $files
gr bytind bytebpos $files
gr memind membpos $files
gr bufbyte intbyte $files
gr Extcount Bytecount $files
gr Bufpos Charbpos $files
gr Bytind Bytebpos $files
gr Memind Membpos $files
gr Bufbyte Intbyte $files
gr EXTCOUNT BYTECOUNT $files
gr BUFPOS CHARBPOS $files
gr BYTIND BYTEBPOS $files
gr MEMIND MEMBPOS $files
gr BUFBYTE INTBYTE $files
gr MEMORY_COUNT BYTECOUNT $files
gr LSTREAM_DATA_COUNT BYTECOUNT $files
gr ELEMENT_COUNT ELEMCOUNT $files
gr HASH_CODE HASHCODE $files
----------------------------------- cut ------------------------------------
`fixtypes.sh' is a Bourne-shell script; it uses 'gr':
----------------------------------- cut ------------------------------------
#!/bin/sh
# Usage is like this:
# gr FROM TO FILES ...
# globally replace FROM with TO in FILES. FROM and TO are regular expressions.
# backup files are stored in the `backup' directory.
from="$1"
to="$2"
shift 2
echo ${1+"$@"} | xargs global-replace "s/$from/$to/g"
----------------------------------- cut ------------------------------------
`gr' in turn uses a Perl script to do its real work,
`global-replace', which follows:
----------------------------------- cut ------------------------------------
: #-*- Perl -*-
### global-modify --- modify the contents of a file by a Perl expression
## Copyright (C) 1999 Martin Buchholz.
## Copyright (C) 2001 Ben Wing.
## Authors: Martin Buchholz <martin@xemacs.org>, Ben Wing <ben@xemacs.org>
## Maintainer: Ben Wing <ben@xemacs.org>
## Current Version: 1.0, May 5, 2001
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with XEmacs; see the file COPYING. If not, write to the Free
# Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
eval 'exec perl -w -S $0 ${1+"$@"}'
if 0;
use strict;
use FileHandle;
use Carp;
use Getopt::Long;
use File::Basename;
(my $myName = $0) =~ s@.*/@@; my $usage="
Usage: $myName [--help] [--backup-dir=DIR] [--line-mode] [--hunk-mode]
PERLEXPR FILE ...
Globally modify a file, either line by line or in one big hunk.
Typical usage is like this:
[with GNU print, GNU xargs: guaranteed to handle spaces, quotes, etc.
in file names]
find . -name '*.[ch]' -print0 | xargs -0 $0 's/\bCONST\b/const/g'\n
[with non-GNU print, xargs]
find . -name '*.[ch]' -print | xargs $0 's/\bCONST\b/const/g'\n
The file is read in, either line by line (with --line-mode specified)
or in one big hunk (with --hunk-mode specified; it's the default), and
the Perl expression is then evalled with \$_ set to the line or hunk of
text, including the terminating newline if there is one. It should
destructively modify the value there, storing the changed result in \$_.
Files in which any modifications are made are backed up to the directory
specified using --backup-dir, or to `backup' by default. To disable this,
use --backup-dir= with no argument.
Hunk mode is the default because it is MUCH MUCH faster than line-by-line.
Use line-by-line only when it matters, e.g. you want to do a replacement
only once per line (the default without the `g' argument). Conversely,
when using hunk mode, *ALWAYS* use `g'; otherwise, you will only make one
replacement in the entire file!
";
my %options = ();
$Getopt::Long::ignorecase = 0;
&GetOptions (
\%options,
'help', 'backup-dir=s', 'line-mode', 'hunk-mode',
);
die $usage if $options{"help"} or @ARGV <= 1;
my $code = shift;
die $usage if grep (-d || ! -w, @ARGV);
sub SafeOpen {
open ((my $fh = new FileHandle), $_[0]);
confess "Can't open $_[0]: $!" if ! defined $fh;
return $fh;
}
sub SafeClose {
close $_[0] or confess "Can't close $_[0]: $!";
}
sub FileContents {
my $fh = SafeOpen ("< $_[0]");
my $olddollarslash = $/;
local $/ = undef;
my $contents = <$fh>;
$/ = $olddollarslash;
return $contents;
}
sub WriteStringToFile {
my $fh = SafeOpen ("> $_[0]");
binmode $fh;
print $fh $_[1] or confess "$_[0]: $!\n";
SafeClose $fh;
}
foreach my $file (@ARGV) {
my $changed_p = 0;
my $new_contents = "";
if ($options{"line-mode"}) {
my $fh = SafeOpen $file;
while (<$fh>) {
my $save_line = $_;
eval $code;
$changed_p = 1 if $save_line ne $_;
$new_contents .= $_;
}
} else {
my $orig_contents = $_ = FileContents $file;
eval $code;
if ($_ ne $orig_contents) {
$changed_p = 1;
$new_contents = $_;
}
}
if ($changed_p) {
my $backdir = $options{"backup-dir"};
$backdir = "backup" if !defined ($backdir);
if ($backdir) {
my ($name, $path, $suffix) = fileparse ($file, "");
my $backfulldir = $path . $backdir;
my $backfile = "$backfulldir/$name";
mkdir $backfulldir, 0755 unless -d $backfulldir;
print "modifying $file (original saved in $backfile)\n";
rename $file, $backfile;
}
WriteStringToFile ($file, $new_contents);
}
}
----------------------------------- cut ------------------------------------
In addition to those programs, I needed to fix up a few other
things, particularly relating to the duplicate definitions of
types, now that some types merged with others. Specifically:
1. in lisp.h, removed duplicate declarations of Bytecount. The
changed code should now look like this: (In each code snippet
below, the first and last lines are the same as the original, as
are all lines outside of those lines. That allows you to locate
the section to be replaced, and replace the stuff in that
section, verifying that there isn't anything new added that
would need to be kept.)
--------------------------------- snip -------------------------------------
/* Counts of bytes or chars */
typedef EMACS_INT Bytecount;
typedef EMACS_INT Charcount;
/* Counts of elements */
typedef EMACS_INT Elemcount;
/* Hash codes */
typedef unsigned long Hashcode;
/* ------------------------ dynamic arrays ------------------- */
--------------------------------- snip -------------------------------------
2. in lstream.h, removed duplicate declaration of Bytecount.
Rewrote the comment about this type. The changed code should
now look like this:
--------------------------------- snip -------------------------------------
#endif
/* The have been some arguments over the what the type should be that
specifies a count of bytes in a data block to be written out or read in,
using Lstream_read(), Lstream_write(), and related functions.
Originally it was long, which worked fine; Martin "corrected" these to
size_t and ssize_t on the grounds that this is theoretically cleaner and
is in keeping with the C standards. Unfortunately, this practice is
horribly error-prone due to design flaws in the way that mixed
signed/unsigned arithmetic happens. In fact, by doing this change,
Martin introduced a subtle but fatal error that caused the operation of
sending large mail messages to the SMTP server under Windows to fail.
By putting all values back to be signed, avoiding any signed/unsigned
mixing, the bug immediately went away. The type then in use was
Lstream_Data_Count, so that it be reverted cleanly if a vote came to
that. Now it is Bytecount.
Some earlier comments about why the type must be signed: This MUST BE
SIGNED, since it also is used in functions that return the number of
bytes actually read to or written from in an operation, and these
functions can return -1 to signal error.
Note that the standard Unix read() and write() functions define the
count going in as a size_t, which is UNSIGNED, and the count going
out as an ssize_t, which is SIGNED. This is a horrible design
flaw. Not only is it highly likely to lead to logic errors when a
-1 gets interpreted as a large positive number, but operations are
bound to fail in all sorts of horrible ways when a number in the
upper-half of the size_t range is passed in -- this number is
unrepresentable as an ssize_t, so code that checks to see how many
bytes are actually written (which is mandatory if you are dealing
with certain types of devices) will get completely screwed up.
--ben
*/
typedef enum lstream_buffering
--------------------------------- snip -------------------------------------
3. in dumper.c, there are four places, all inside of switch()
statements, where XD_BYTECOUNT appears twice as a case tag. In
each case, the two case blocks contain identical code, and you
should *REMOVE THE SECOND* and leave the first.
| author | ben |
|---|---|
| date | Thu, 20 Sep 2001 06:31:11 +0000 |
| parents | f1a615a0d9e0 |
| children | 943eaba38521 |
line wrap: on
line source
/* device functions for mswindows. Copyright (C) 1994, 1995 Board of Trustees, University of Illinois. Copyright (C) 1994, 1995 Free Software Foundation, Inc. This file is part of XEmacs. XEmacs is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. XEmacs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with XEmacs; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Synched up with: Not in FSF. */ /* Authorship: Original authors: Jamie Zawinski and the FSF Rewritten by Ben Wing and Chuck Thompson. Rewritten for mswindows by Jonathan Harris, November 1997 for 21.0. Print support added by Kirill Katsnelson, July 2000. */ #include <config.h> #include "lisp.h" #include "console-msw.h" #include "console-stream.h" #include "objects-msw.h" #include "events.h" #include "faces.h" #include "frame.h" #include "sysdep.h" #include <commdlg.h> #if !(defined (CYGWIN) || defined(MINGW)) #include <objbase.h> /* For CoInitialize */ #endif /* win32 DDE management library globals */ #ifdef HAVE_DRAGNDROP DWORD mswindows_dde_mlid; int mswindows_dde_enable; HSZ mswindows_dde_service; HSZ mswindows_dde_topic_system; HSZ mswindows_dde_item_open; #endif /* Control conversion of upper case file names to lower case. nil means no, t means yes. */ Lisp_Object Vmswindows_downcase_file_names; /* Control whether xemacs_stat() attempts to determine file type and link count exactly, at the expense of slower operation. Since true hard links are supported on NTFS volumes, this is only relevant on NT. */ Lisp_Object Vmswindows_get_true_file_attributes; Lisp_Object Qinit_pre_mswindows_win, Qinit_post_mswindows_win; Lisp_Object Qdevmodep; static Lisp_Object Q_allow_selection; static Lisp_Object Q_allow_pages; static Lisp_Object Q_selected_page_button; static Lisp_Object Qselected_page_button; static Lisp_Object allocate_devmode (DEVMODE* src_devmode, int do_copy, char* src_name, struct device *d); /************************************************************************/ /* helpers */ /************************************************************************/ static Lisp_Object build_syscolor_string (int idx) { return (idx < 0 ? Qnil : mswindows_color_to_string (GetSysColor (idx))); } static Lisp_Object build_syscolor_cons (int index1, int index2) { Lisp_Object color1, color2; struct gcpro gcpro1; GCPRO1 (color1); color1 = build_syscolor_string (index1); color2 = build_syscolor_string (index2); RETURN_UNGCPRO (Fcons (color1, color2)); } static Lisp_Object build_sysmetrics_cons (int index1, int index2) { return Fcons (index1 < 0 ? Qnil : make_int (GetSystemMetrics (index1)), index2 < 0 ? Qnil : make_int (GetSystemMetrics (index2))); } static Lisp_Object build_devicecaps_cons (HDC hdc, int index1, int index2) { return Fcons (index1 < 0 ? Qnil : make_int (GetDeviceCaps (hdc, index1)), index2 < 0 ? Qnil : make_int (GetDeviceCaps (hdc, index2))); } /************************************************************************/ /* display methods */ /************************************************************************/ static void mswindows_init_device (struct device *d, Lisp_Object props) { WNDCLASSEX wc; HDC hdc; DEVICE_CLASS (d) = Qcolor; DEVICE_INFD (d) = DEVICE_OUTFD (d) = -1; init_baud_rate (d); init_one_device (d); d->device_data = xnew_and_zero (struct mswindows_device); hdc = CreateCompatibleDC (NULL); assert (hdc!=NULL); DEVICE_MSWINDOWS_HCDC(d) = hdc; DEVICE_MSWINDOWS_FONTLIST (d) = mswindows_enumerate_fonts (hdc); DEVICE_MSWINDOWS_UPDATE_TICK (d) = GetTickCount (); /* Register the main window class */ wc.cbSize = sizeof (WNDCLASSEX); wc.style = CS_OWNDC; /* One DC per window */ wc.lpfnWndProc = (WNDPROC) mswindows_wnd_proc; wc.cbClsExtra = 0; wc.cbWndExtra = MSWINDOWS_WINDOW_EXTRA_BYTES; /* This must match whatever is passed to CreateWIndowEx, NULL is ok for this. */ wc.hInstance = NULL; wc.hIcon = LoadIcon (GetModuleHandle(NULL), XEMACS_CLASS); wc.hCursor = LoadCursor (NULL, IDC_ARROW); /* Background brush is only used during sizing, when XEmacs cannot take over */ wc.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE + 1); wc.lpszMenuName = NULL; wc.lpszClassName = XEMACS_CLASS; if (xLoadImageA) /* not in NT 3.5 */ wc.hIconSm = (HICON) xLoadImageA (GetModuleHandle (NULL), XEMACS_CLASS, IMAGE_ICON, 16, 16, 0); else wc.hIconSm = 0; if (xRegisterClassExA) /* not in NT 3.5 */ xRegisterClassExA (&wc); else RegisterClassA ((WNDCLASS *) &wc.style); #ifdef HAVE_WIDGETS xzero (wc); /* Register the main window class */ wc.cbSize = sizeof (WNDCLASSEX); wc.lpfnWndProc = (WNDPROC) mswindows_control_wnd_proc; wc.lpszClassName = XEMACS_CONTROL_CLASS; wc.hInstance = NULL; if (xRegisterClassExA) /* not in NT 3.5 */ xRegisterClassExA (&wc); else RegisterClassA ((WNDCLASS *) &wc.style); #endif #if defined (HAVE_TOOLBARS) || defined (HAVE_WIDGETS) InitCommonControls (); #endif } #ifdef HAVE_DRAGNDROP static void mswindows_init_dde () { /* Initialize DDE management library and our related globals. We execute a * dde Open("file") by simulating a drop, so this depends on dnd support. */ # if !(defined(CYGWIN) || defined(MINGW)) CoInitialize (NULL); # endif mswindows_dde_mlid = 0; mswindows_dde_enable = 0; DdeInitialize (&mswindows_dde_mlid, (PFNCALLBACK)mswindows_dde_callback, APPCMD_FILTERINITS|CBF_FAIL_SELFCONNECTIONS|CBF_FAIL_ADVISES| CBF_FAIL_POKES|CBF_FAIL_REQUESTS|CBF_SKIP_ALLNOTIFICATIONS, 0); mswindows_dde_service = DdeCreateStringHandle (mswindows_dde_mlid, XEMACS_CLASS, 0); mswindows_dde_topic_system = DdeCreateStringHandle (mswindows_dde_mlid, SZDDESYS_TOPIC, 0); mswindows_dde_item_open = DdeCreateStringHandle (mswindows_dde_mlid, TEXT(MSWINDOWS_DDE_ITEM_OPEN), 0); DdeNameService (mswindows_dde_mlid, mswindows_dde_service, 0L, DNS_REGISTER); } #endif void init_mswindows_very_early() { #ifdef HAVE_DRAGNDROP /* Initializing dde when the device is created is too late - the client will give up waiting. Instead we initialize here and tell the client we're too busy until the rest of initialization has happened. */ mswindows_init_dde(); #endif } static void mswindows_finish_init_device (struct device *d, Lisp_Object props) { #ifdef HAVE_DRAGNDROP /* Tell pending clients we are ready. */ mswindows_dde_enable = 1; #endif } static void mswindows_delete_device (struct device *d) { #ifdef HAVE_DRAGNDROP DdeNameService (mswindows_dde_mlid, 0L, 0L, DNS_UNREGISTER); DdeFreeStringHandle (mswindows_dde_mlid, mswindows_dde_item_open); DdeFreeStringHandle (mswindows_dde_mlid, mswindows_dde_topic_system); DdeFreeStringHandle (mswindows_dde_mlid, mswindows_dde_service); DdeUninitialize (mswindows_dde_mlid); # if !(defined(CYGWIN) || defined(MINGW)) CoUninitialize (); # endif #endif DeleteDC (DEVICE_MSWINDOWS_HCDC(d)); xfree (d->device_data); } void mswindows_get_workspace_coords (RECT *rc) { SystemParametersInfo (SPI_GETWORKAREA, 0, rc, 0); } static void mswindows_mark_device (struct device *d) { mark_object (DEVICE_MSWINDOWS_FONTLIST (d)); } static Lisp_Object mswindows_device_system_metrics (struct device *d, enum device_metrics m) { const HDC hdc = DEVICE_MSWINDOWS_HCDC(d); switch (m) { case DM_size_device: return Fcons (make_int (GetDeviceCaps (hdc, HORZRES)), make_int (GetDeviceCaps (hdc, VERTRES))); break; case DM_device_dpi: return Fcons (make_int (GetDeviceCaps (hdc, LOGPIXELSX)), make_int (GetDeviceCaps (hdc, LOGPIXELSY))); break; case DM_size_device_mm: return Fcons (make_int (GetDeviceCaps (hdc, HORZSIZE)), make_int (GetDeviceCaps (hdc, VERTSIZE))); break; case DM_num_bit_planes: /* this is what X means by bitplanes therefore we ought to be consistent. num planes is always 1 under mswindows and therefore useless */ return make_int (GetDeviceCaps (hdc, BITSPIXEL)); break; case DM_num_color_cells: /* #### SIZEPALETTE only valid if RC_PALETTE bit set in RASTERCAPS, what should we return for a non-palette-based device? */ return make_int (GetDeviceCaps (hdc, SIZEPALETTE)); break; /*** Colors ***/ #define FROB(met, fore, back) \ case DM_##met: \ return build_syscolor_cons (fore, back); FROB (color_default, COLOR_WINDOWTEXT, COLOR_WINDOW); FROB (color_select, COLOR_HIGHLIGHTTEXT, COLOR_HIGHLIGHT); FROB (color_balloon, COLOR_INFOTEXT, COLOR_INFOBK); FROB (color_3d_face, COLOR_BTNTEXT, COLOR_BTNFACE); FROB (color_3d_light, COLOR_3DHILIGHT, COLOR_3DLIGHT); FROB (color_3d_dark, COLOR_3DDKSHADOW, COLOR_3DSHADOW); FROB (color_menu, COLOR_MENUTEXT, COLOR_MENU); FROB (color_menu_highlight, COLOR_HIGHLIGHTTEXT, COLOR_HIGHLIGHT); FROB (color_menu_button, COLOR_MENUTEXT, COLOR_MENU); FROB (color_menu_disabled, COLOR_GRAYTEXT, COLOR_MENU); FROB (color_toolbar, COLOR_BTNTEXT, COLOR_BTNFACE); FROB (color_scrollbar, COLOR_CAPTIONTEXT, COLOR_SCROLLBAR); FROB (color_desktop, -1, COLOR_DESKTOP); FROB (color_workspace, -1, COLOR_APPWORKSPACE); #undef FROB /*** Sizes ***/ #define FROB(met, index1, index2) \ case DM_##met: \ return build_sysmetrics_cons (index1, index2); FROB (size_cursor, SM_CXCURSOR, SM_CYCURSOR); FROB (size_scrollbar, SM_CXVSCROLL, SM_CYHSCROLL); FROB (size_menu, -1, SM_CYMENU); FROB (size_icon, SM_CXICON, SM_CYICON); FROB (size_icon_small, SM_CXSMICON, SM_CYSMICON); #undef FROB case DM_size_workspace: { RECT rc; mswindows_get_workspace_coords (&rc); return Fcons (make_int (rc.right - rc.left), make_int (rc.bottom - rc.top)); } case DM_offset_workspace: { RECT rc; mswindows_get_workspace_coords (&rc); return Fcons (make_int (rc.left), make_int (rc.top)); } /* case DM_size_toolbar: case DM_size_toolbar_button: case DM_size_toolbar_border: */ /*** Features ***/ #define FROB(met, index) \ case DM_##met: \ return make_int (GetSystemMetrics (index)); FROB (mouse_buttons, SM_CMOUSEBUTTONS); FROB (swap_buttons, SM_SWAPBUTTON); FROB (show_sounds, SM_SHOWSOUNDS); FROB (slow_device, SM_SLOWMACHINE); FROB (security, SM_SECURE); #undef FROB } /* Do not know such property */ return Qunbound; } /************************************************************************/ /* printer helpers */ /************************************************************************/ static void signal_open_printer_error (struct device *d) { invalid_operation ("Failed to open printer", DEVICE_CONNECTION (d)); } /* Helper function */ static int msprinter_init_device_internal (struct device *d, char* printer_name) { DEVICE_MSPRINTER_NAME(d) = xstrdup (printer_name); if (!OpenPrinter (printer_name, &DEVICE_MSPRINTER_HPRINTER (d), NULL)) { DEVICE_MSPRINTER_HPRINTER (d) = NULL; return 0; } DEVICE_MSPRINTER_HDC (d) = CreateDC ("WINSPOOL", printer_name, NULL, NULL); if (DEVICE_MSPRINTER_HDC (d) == NULL) return 0; DEVICE_MSPRINTER_HCDC(d) = CreateCompatibleDC (DEVICE_MSPRINTER_HDC (d)); DEVICE_CLASS (d) = (GetDeviceCaps (DEVICE_MSPRINTER_HDC (d), BITSPIXEL) * GetDeviceCaps (DEVICE_MSPRINTER_HDC (d), PLANES) > 1) ? Qcolor : Qmono; return 1; } static void msprinter_delete_device_internal (struct device *d) { if (DEVICE_MSPRINTER_HPRINTER (d)) ClosePrinter (DEVICE_MSPRINTER_HPRINTER (d)); if (DEVICE_MSPRINTER_HDC (d)) DeleteDC (DEVICE_MSPRINTER_HDC (d)); if (DEVICE_MSPRINTER_HCDC (d)) DeleteDC (DEVICE_MSPRINTER_HCDC (d)); if (DEVICE_MSPRINTER_NAME (d)) xfree (DEVICE_MSPRINTER_NAME (d)); DEVICE_MSPRINTER_FONTLIST (d) = Qnil; } static int msprinter_reinit_device (struct device *d, char* devname) { msprinter_delete_device_internal (d); return msprinter_init_device_internal (d, devname); } Lisp_Object msprinter_default_printer (void) { Extbyte name[666]; Intbyte *nameint; if (GetProfileString (XETEXT ("windows"), XETEXT ("device"), NULL, name, sizeof (name) / XETCHAR_SIZE) <= 0) return Qnil; EXTERNAL_TO_C_STRING (name, nameint, Qmswindows_tstr); if (name[0] == '\0') return Qnil; strtok (name, ","); return build_string (name); } /************************************************************************/ /* printer methods */ /************************************************************************/ static void msprinter_init_device (struct device *d, Lisp_Object props) { char* printer_name; DEVMODE *pdm; LONG dm_size; d->device_data = xnew_and_zero (struct msprinter_device); DEVICE_INFD (d) = DEVICE_OUTFD (d) = -1; DEVICE_MSPRINTER_DEVMODE(d) = Qnil; /* We do not use printer fon list as we do with the display device. Rather, we allow GDI to pick the closest match to the display font. */ DEVICE_MSPRINTER_FONTLIST (d) = Qnil; CHECK_STRING (DEVICE_CONNECTION (d)); TO_EXTERNAL_FORMAT (LISP_STRING, DEVICE_CONNECTION (d), C_STRING_ALLOCA, printer_name, Qmswindows_tstr); if (!msprinter_init_device_internal (d, printer_name)) signal_open_printer_error (d); /* Determine DEVMODE size and store the default DEVMODE */ dm_size = DocumentProperties (NULL, DEVICE_MSPRINTER_HPRINTER (d), printer_name, NULL, NULL, 0); if (dm_size <= 0) signal_open_printer_error (d); pdm = (DEVMODE*) xmalloc (dm_size); if (DocumentProperties (NULL, DEVICE_MSPRINTER_HPRINTER(d), printer_name, pdm, NULL, DM_OUT_BUFFER) < 0) signal_open_printer_error (d); assert (DEVMODE_SIZE (pdm) <= dm_size); DEVICE_MSPRINTER_DEVMODE(d) = allocate_devmode (pdm, 0, printer_name, d); } static void msprinter_delete_device (struct device *d) { if (d->device_data) { msprinter_delete_device_internal (d); /* Disassociate the selected devmode with the device */ if (!NILP (DEVICE_MSPRINTER_DEVMODE (d))) { XDEVMODE (DEVICE_MSPRINTER_DEVMODE (d))->device = Qnil; DEVICE_MSPRINTER_DEVMODE (d) = Qnil; } xfree (d->device_data); } } static Lisp_Object msprinter_device_system_metrics (struct device *d, enum device_metrics m) { switch (m) { /* Device sizes - pixel and mm */ #define FROB(met, index1, index2) \ case DM_##met: \ return build_devicecaps_cons \ (DEVICE_MSPRINTER_HDC(d), index1, index2); FROB (size_device, PHYSICALWIDTH, PHYSICALHEIGHT); FROB (size_device_mm, HORZSIZE, VERTSIZE); FROB (size_workspace, HORZRES, VERTRES); FROB (offset_workspace, PHYSICALOFFSETX, PHYSICALOFFSETY); FROB (device_dpi, LOGPIXELSX, LOGPIXELSY); #undef FROB case DM_num_bit_planes: /* this is what X means by bitplanes therefore we ought to be consistent. num planes is always 1 under mswindows and therefore useless */ return make_int (GetDeviceCaps (DEVICE_MSPRINTER_HDC(d), BITSPIXEL)); case DM_num_color_cells: /* Printers are non-palette devices */ case DM_slow_device: /* Animation would be a really bad idea */ case DM_security: /* Not provided by windows */ return Qzero; } /* Do not know such property */ return Qunbound; } static void msprinter_mark_device (struct device *d) { mark_object (DEVICE_MSPRINTER_FONTLIST (d)); mark_object (DEVICE_MSPRINTER_DEVMODE (d)); } /************************************************************************/ /* printer Lisp subroutines */ /************************************************************************/ static void global_free_2_maybe (HGLOBAL hg1, HGLOBAL hg2) { if (hg1 != NULL) GlobalFree (hg1); if (hg2 != NULL) GlobalFree (hg2); } static HGLOBAL devmode_to_hglobal (Lisp_Devmode *ldm) { HGLOBAL hg = GlobalAlloc (GHND, XDEVMODE_SIZE (ldm)); memcpy (GlobalLock (hg), ldm->devmode, XDEVMODE_SIZE (ldm)); GlobalUnlock (hg); return hg; } /* Returns 0 if the printer has been deleted due to a fatal I/O error, 1 otherwise. */ static int sync_printer_with_devmode (struct device* d, DEVMODE* devmode_in, DEVMODE* devmode_out, char* devname) { /* Change connection if the device changed */ if (devname != NULL && stricmp (devname, DEVICE_MSPRINTER_NAME(d)) != 0) { Lisp_Object new_connection = build_ext_string (devname, Qmswindows_tstr); struct gcpro gcpro1; GCPRO1 (new_connection); DEVICE_CONNECTION (d) = Qnil; if (!NILP (Ffind_device (new_connection, Qmsprinter))) { /* We are in trouble - second msprinter for the same device. Nothing wrong on the Windows side, just forge a unique connection name. Use the memory address of d as a unique suffix. */ Extbyte *new_connext = (Extbyte *) alloca (strlen (devname + 11)); sprintf (new_connext, "%s:%X", devname, d->header.uid); new_connection = build_ext_string (devname, Qmswindows_tstr); } DEVICE_CONNECTION (d) = new_connection; UNGCPRO; /* Reinitialize printer. The device can pop off in process */ if (!msprinter_reinit_device (d, devname)) { /* Kaboom! */ delete_device_internal (d, 1, 0, 1); return 0; } } /* Apply the new devmode to the printer */ DocumentProperties (NULL, DEVICE_MSPRINTER_HPRINTER(d), DEVICE_MSPRINTER_NAME(d), devmode_out, devmode_in, DM_IN_BUFFER | DM_OUT_BUFFER); /* #### ResetDC fails sometimes, Bill only knows why. The solution below looks more like a workaround to me, although it might be fine. --kkm */ if (ResetDC (DEVICE_MSPRINTER_HDC (d), devmode_out) == NULL) { DeleteDC (DEVICE_MSPRINTER_HDC (d)); DEVICE_MSPRINTER_HDC (d) = CreateDC ("WINSPOOL", DEVICE_MSPRINTER_NAME(d), NULL, devmode_out); } return 1; } static void handle_devmode_changes (Lisp_Devmode *ldm, HGLOBAL hDevNames, HGLOBAL hDevMode) { DEVNAMES* devnames = (DEVNAMES*) GlobalLock (hDevNames); char *new_name = devnames ? (char*)devnames + devnames->wDeviceOffset : NULL; DEVMODE* devmode = (DEVMODE*) GlobalLock (hDevMode); /* Size and name may have changed */ ldm->devmode = (DEVMODE *) xrealloc (ldm->devmode, DEVMODE_SIZE (devmode)); if (new_name) { if (ldm->printer_name) xfree (ldm->printer_name); ldm->printer_name = xstrdup (new_name); } if (!NILP (ldm->device)) { /* Apply the new devmode to the printer and get a compete one back */ struct device *d = XDEVICE (ldm->device); if (!sync_printer_with_devmode (d, devmode, ldm->devmode, new_name)) { global_free_2_maybe (hDevNames, hDevMode); signal_error (Qio_error, "Printer device initialization I/O error, device deleted", Qunbound); } } else { /* Just copy the devmode structure */ memcpy (ldm->devmode, devmode, DEVMODE_SIZE (devmode)); } } static void ensure_not_printing (struct device *d) { if (!NILP (DEVICE_FRAME_LIST (d))) { Lisp_Object device; XSETDEVICE (device, d); invalid_operation ("Cannot change settings while print job is active", device); } } static Lisp_Devmode * decode_devmode (Lisp_Object dev) { if (DEVMODEP (dev)) return XDEVMODE (dev); else { ensure_not_printing (XDEVICE (dev)); return XDEVMODE (DEVICE_MSPRINTER_DEVMODE (XDEVICE (dev))); } } /* * DEV can be either a printer or devmode */ static Lisp_Object print_dialog_worker (Lisp_Object dev, DWORD flags) { Lisp_Devmode *ldm = decode_devmode (dev); PRINTDLG pd; memset (&pd, 0, sizeof (pd)); pd.lStructSize = sizeof (pd); pd.hwndOwner = mswindows_get_selected_frame_hwnd (); pd.hDevMode = devmode_to_hglobal (ldm); pd.Flags = flags | PD_USEDEVMODECOPIESANDCOLLATE; pd.nMinPage = 0; pd.nMaxPage = 0xFFFF; if (!PrintDlg (&pd)) { global_free_2_maybe (pd.hDevNames, pd.hDevMode); return Qnil; } handle_devmode_changes (ldm, pd.hDevNames, pd.hDevMode); /* Finally, build the resulting plist */ { Lisp_Object result = Qnil; struct gcpro gcpro1; GCPRO1 (result); /* Do consing in reverse order. Number of copies */ result = Fcons (Qcopies, Fcons (make_int (pd.nCopies), result)); /* Page range */ if (pd.Flags & PD_PAGENUMS) { result = Fcons (Qto_page, Fcons (make_int (pd.nToPage), result)); result = Fcons (Qfrom_page, Fcons (make_int (pd.nFromPage), result)); result = Fcons (Qselected_page_button, Fcons (Qpages, result)); } else if (pd.Flags & PD_SELECTION) result = Fcons (Qselected_page_button, Fcons (Qselection, result)); else result = Fcons (Qselected_page_button, Fcons (Qall, result)); /* Device name */ result = Fcons (Qname, Fcons (build_ext_string (ldm->printer_name, Qmswindows_tstr), result)); UNGCPRO; global_free_2_maybe (pd.hDevNames, pd.hDevMode); return result; } } Lisp_Object mswindows_handle_print_dialog_box (struct frame *f, Lisp_Object keys) { Lisp_Object device = Qunbound, settings = Qunbound; DWORD flags = PD_NOSELECTION; { EXTERNAL_PROPERTY_LIST_LOOP_3 (key, value, keys) { if (EQ (key, Q_device)) { device = wrap_device (decode_device (value)); CHECK_MSPRINTER_DEVICE (device); } else if (EQ (key, Q_printer_settings)) { CHECK_DEVMODE (value); settings = value; } else if (EQ (key, Q_allow_pages)) { if (NILP (value)) flags |= PD_NOPAGENUMS; } else if (EQ (key, Q_allow_selection)) { if (!NILP (value)) flags &= ~PD_NOSELECTION; } else if (EQ (key, Q_selected_page_button)) { if (EQ (value, Qselection)) flags |= PD_SELECTION; else if (EQ (value, Qpages)) flags |= PD_PAGENUMS; else if (!EQ (value, Qall)) invalid_constant ("for :selected-page-button", value); } else invalid_constant ("Unrecognized print-dialog keyword", key); } } if ((UNBOUNDP (device) && UNBOUNDP (settings)) || (!UNBOUNDP (device) && !UNBOUNDP (settings))) sferror ("Exactly one of :device and :printer-settings must be given", keys); return print_dialog_worker (!UNBOUNDP (device) ? device : settings, flags); } int mswindows_get_default_margin (Lisp_Object prop) { if (EQ (prop, Qleft_margin)) return 1440; if (EQ (prop, Qright_margin)) return 1440; if (EQ (prop, Qtop_margin)) return 720; if (EQ (prop, Qbottom_margin)) return 720; abort (); return 0; } static int plist_get_margin (Lisp_Object plist, Lisp_Object prop) { Lisp_Object val = Fplist_get (plist, prop, make_int (mswindows_get_default_margin (prop))); if (!INTP (val)) invalid_argument ("Margin value must be an integer", val); return MulDiv (XINT (val), 100, 144); } static Lisp_Object plist_set_margin (Lisp_Object plist, Lisp_Object prop, int margin, int mm_p) { Lisp_Object val = make_int (MulDiv (margin, 144, mm_p ? 2450 : 100)); return Fcons (prop, Fcons (val, plist)); } Lisp_Object mswindows_handle_page_setup_dialog_box (struct frame *f, Lisp_Object keys) { Lisp_Object device = Qunbound, settings = Qunbound; Lisp_Object plist = Qnil; { EXTERNAL_PROPERTY_LIST_LOOP_3 (key, value, keys) { if (EQ (key, Q_device)) { device = wrap_device (decode_device (value)); CHECK_MSPRINTER_DEVICE (device); } else if (EQ (key, Q_printer_settings)) { CHECK_DEVMODE (value); settings = value; } else if (EQ (key, Q_properties)) { CHECK_LIST (value); plist = value; } else invalid_constant ("Unrecognized page-setup dialog keyword", key); } } if ((UNBOUNDP (device) && UNBOUNDP (settings)) || (!UNBOUNDP (device) && !UNBOUNDP (settings))) sferror ("Exactly one of :device and :printer-settings must be given", keys); if (UNBOUNDP (device)) device = settings; { Lisp_Devmode *ldm = decode_devmode (device); PAGESETUPDLG pd; memset (&pd, 0, sizeof (pd)); pd.lStructSize = sizeof (pd); pd.hwndOwner = mswindows_get_selected_frame_hwnd (); pd.Flags = PSD_MARGINS; pd.rtMargin.left = plist_get_margin (plist, Qleft_margin); pd.rtMargin.top = plist_get_margin (plist, Qtop_margin); pd.rtMargin.right = plist_get_margin (plist, Qright_margin); pd.rtMargin.bottom = plist_get_margin (plist, Qbottom_margin); pd.hDevMode = devmode_to_hglobal (ldm); if (!PageSetupDlg (&pd)) { global_free_2_maybe (pd.hDevNames, pd.hDevMode); return Qnil; } if (pd.hDevMode) handle_devmode_changes (ldm, pd.hDevNames, pd.hDevMode); /* Finally, build the resulting plist */ { Lisp_Object result = Qnil; int mm_p = pd.Flags & PSD_INHUNDREDTHSOFMILLIMETERS; result = plist_set_margin (result, Qbottom_margin, pd.rtMargin.bottom, mm_p); result = plist_set_margin (result, Qright_margin, pd.rtMargin.right, mm_p); result = plist_set_margin (result, Qtop_margin, pd.rtMargin.top, mm_p); result = plist_set_margin (result, Qleft_margin, pd.rtMargin.left, mm_p); return result; } } } DEFUN ("msprinter-get-settings", Fmsprinter_get_settings, 1, 1, 0, /* Return the settings object currently used by DEVICE. The object returned is not a copy, but rather a pointer to the original one. Use `msprinter-settings-copy' to create a copy of it. */ (device)) { struct device *d = decode_device (device); XSETDEVICE (device, d); CHECK_MSPRINTER_DEVICE (device); return DEVICE_MSPRINTER_DEVMODE (d); } DEFUN ("msprinter-select-settings", Fmsprinter_select_settings, 2, 2, 0, /* Select SETTINGS object into a DEVICE. The settings from the settings object are immediately applied to the printer, possibly changing even the target printer itself, and all future changes are applied synchronously to the printer device and the selected printer object, until a different settings object is selected into the same printer. A settings object can be selected to no more than one printer at a time. If the supplied settings object is not specialized, it is specialized for the printer immediately upon selection. The object can be despecialized after it is unselected by calling the function `msprinter-settings-despecialize'. Return value is the previously selected settings object. */ (device, settings)) { Lisp_Devmode *ldm; struct device *d = decode_device (device); struct gcpro gcpro1; GCPRO1 (settings); XSETDEVICE (device, d); CHECK_MSPRINTER_DEVICE (device); CHECK_DEVMODE (settings); ldm = XDEVMODE (settings); if (!NILP (ldm->device)) invalid_operation ("The object is currently selected into a device", settings); /* If the object being selected is de-specialized, then its size is perhaps not enough to receive the new devmode. We can ask for printer's devmode size here, because despecialized settings cannot force switching to a different printer, as they supply no printer name at all. */ if (ldm->printer_name == NULL) { LONG dm_size = DocumentProperties (NULL, DEVICE_MSPRINTER_HPRINTER(d), DEVICE_MSPRINTER_NAME(d), NULL, NULL, 0); if (dm_size <= 0) signal_error (Qio_error, "Unable to specialize settings, printer error", device); assert (XDEVMODE_SIZE (ldm) <= dm_size); ldm->devmode = (DEVMODE *) xrealloc (ldm->devmode, dm_size); } /* If we bail out on signal here, no damage is done, except that the storage for the DEVMODE structure might be reallocated to hold a larger one - not a big deal */ if (!sync_printer_with_devmode (d, ldm->devmode, ldm->devmode, ldm->printer_name)) signal_error (Qio_error, "Printer device initialization I/O error, device deleted", Qunbound); if (ldm->printer_name == NULL) ldm->printer_name = xstrdup (DEVICE_MSPRINTER_NAME(d)); { Lisp_Object old_mode = DEVICE_MSPRINTER_DEVMODE (d); ldm->device = device; XDEVMODE (old_mode)->device = Qnil; DEVICE_MSPRINTER_DEVMODE (d) = settings; UNGCPRO; return old_mode; } } DEFUN ("msprinter-apply-settings", Fmsprinter_apply_settings, 2, 2, 0, /* Apply settings from a SETTINGS object to a 'msprinter DEVICE. The settings from the settings object are immediately applied to the printer, possibly changing even the target printer itself. The SETTING object is not modified, unlike `msprinter-select-settings', and the supplied object is not changed. The changes are immediately recorded into the settings object which is currently selected into the printer device. Return value is the currently selected settings object. */ (device, settings)) { Lisp_Devmode *ldm_current, *ldm_new; struct device *d = decode_device (device); struct gcpro gcpro1; GCPRO1 (settings); XSETDEVICE (device, d); CHECK_MSPRINTER_DEVICE (device); CHECK_DEVMODE (settings); ldm_new = XDEVMODE (settings); ldm_current = XDEVMODE (DEVICE_MSPRINTER_DEVMODE (d)); /* If the supplied devmode is not specialized, then the current devmode size will always be sufficient, as the printer does not change. If it is specialized, we must reallocate the current devmode storage to match with the supplied one, as it has the right size for the new printer, if it is going to change. The correct way is to use the largest of the two though, to keep the old contents unchanged in case of preliminary exit. */ if (ldm_new->printer_name) ldm_current->devmode = (DEVMODE*) xrealloc (ldm_current->devmode, max (XDEVMODE_SIZE (ldm_new), XDEVMODE_SIZE (ldm_current))); if (!sync_printer_with_devmode (d, ldm_new->devmode, ldm_current->devmode, ldm_new->printer_name)) signal_error (Qio_error, "Printer device initialization I/O error, device deleted", Qunbound); if (ldm_new->printer_name != NULL) { xfree (ldm_current->printer_name); ldm_current->printer_name = xstrdup (ldm_new->printer_name); } UNGCPRO; return DEVICE_MSPRINTER_DEVMODE (d); } /************************************************************************/ /* devmode */ /************************************************************************/ static void print_devmode (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag) { char buf[100]; Lisp_Devmode *dm = XDEVMODE (obj); if (print_readably) printing_unreadable_object ("#<msprinter-settings 0x%x>", dm->header.uid); write_c_string ("#<msprinter-settings", printcharfun); if (dm->printer_name) { write_c_string (" for \"", printcharfun); write_c_string (dm->printer_name, printcharfun); write_c_string ("\"", printcharfun); } if (!NILP (dm->device)) { write_c_string (" (currently on ", printcharfun); print_internal (dm->device, printcharfun, 0); write_c_string (")", printcharfun); } sprintf (buf, " 0x%x>", dm->header.uid); write_c_string (buf, printcharfun); } static void finalize_devmode (void *header, int for_disksave) { Lisp_Devmode *dm = (Lisp_Devmode *) header; if (for_disksave) { Lisp_Object devmode; XSETDEVMODE (devmode, dm); invalid_operation ("Cannot dump XEmacs containing an msprinter-settings object", devmode); } assert (NILP (dm->device)); if (dm->printer_name) xfree (dm->printer_name); } static int equal_devmode (Lisp_Object obj1, Lisp_Object obj2, int depth) { Lisp_Devmode *dm1 = XDEVMODE (obj1); Lisp_Devmode *dm2 = XDEVMODE (obj2); if ((dm1->devmode != NULL) != (dm1->devmode != NULL)) return 0; if (dm1->devmode == NULL) return 1; if (memcmp (dm1->devmode, dm2->devmode, XDEVMODE_SIZE (dm1)) != 0) return 0; if (dm1->printer_name == NULL || dm2->printer_name == NULL) return 1; return stricmp (dm1->printer_name, dm2->printer_name) == 0; } static Hashcode hash_devmode (Lisp_Object obj, int depth) { Lisp_Devmode *dm = XDEVMODE (obj); return HASH3 (XDEVMODE_SIZE (dm), dm->devmode ? memory_hash (dm->devmode, XDEVMODE_SIZE (dm)) : 0, dm->printer_name ? string_hash (dm->printer_name) : 0); } DEFINE_LRECORD_IMPLEMENTATION ("msprinter-settings", devmode, 0/*mark*/, print_devmode, finalize_devmode, equal_devmode, hash_devmode, 0/*description*/, Lisp_Devmode); static Lisp_Object allocate_devmode (DEVMODE* src_devmode, int do_copy, char* src_name, struct device *d) { Lisp_Devmode *dm; Lisp_Object ob; dm = alloc_lcrecord_type (Lisp_Devmode, &lrecord_devmode); if (d) XSETDEVICE (dm->device, d); else dm->device = Qnil; dm->printer_name = src_name ? xstrdup (src_name) : NULL; if (src_devmode != NULL && do_copy) { dm->devmode = (DEVMODE*) xmalloc (DEVMODE_SIZE (src_devmode)); memcpy (dm->devmode, src_devmode, DEVMODE_SIZE (src_devmode)); } else { dm->devmode = src_devmode; } XSETDEVMODE (ob, dm); return ob; } DEFUN ("msprinter-settings-copy", Fmsprinter_settings_copy, 1, 1, 0, /* Create and returns an exact copy of a printer settings object. */ (settings)) { Lisp_Devmode *dm; CHECK_DEVMODE (settings); dm = XDEVMODE (settings); return allocate_devmode (dm->devmode, 1, dm->printer_name, NULL); } DEFUN ("msprinter-settings-despecialize", Fmsprinter_settings_despecialize, 1, 1, 0, /* Erase printer-specific settings from a printer settings object. */ (settings)) { Lisp_Devmode *ldm; DEVMODE *dm; CHECK_DEVMODE (settings); ldm = XDEVMODE (settings); if (!NILP (ldm->device)) invalid_operation ("The object is currently selected into a device", settings); dm = ldm->devmode; /* #### TODO. Either remove references to device specific bins, paper sizes etc, or signal an error of they are present. */ dm->dmDriverExtra = 0; dm->dmDeviceName[0] = '\0'; if (ldm->printer_name) xfree (ldm->printer_name); return Qnil; } DEFUN ("mswindows-get-default-printer", Fmswindows_get_default_printer, 0, 0, 0, /* Return name of the default printer, as string, on nil if there is no default. */ ()) { return msprinter_default_printer (); } static void signal_enum_printer_error (void) { invalid_operation ("Error enumerating printers", make_int (GetLastError ())); } DEFUN ("mswindows-printer-list", Fmswindows_printer_list, 0, 0, 0, /* Return a list of string names of installed printers. If there is a default printer, it is returned as the first element of the list. If there is no default printer, the first element of the list will be nil. The rest of elements are guaranteed to have string values. Return value is nil if there are no printers installed. */ ()) { int have_nt, ok; BYTE *data_buf, dummy_byte; Bytecount enum_entry_size; DWORD enum_flags, enum_level, bytes_needed, num_printers; struct gcpro gcpro1, gcpro2; Lisp_Object result = Qnil, def_printer = Qnil; /* Determine OS flavor, to use the fastest enumeration method available */ have_nt = !mswindows_windows9x_p (); enum_flags = PRINTER_ENUM_LOCAL | (have_nt ? PRINTER_ENUM_CONNECTIONS : 0); enum_level = have_nt ? 4 : 5; enum_entry_size = have_nt ? sizeof (PRINTER_INFO_4) : sizeof (PRINTER_INFO_5); /* Allocate memory for printer enum structure */ ok = EnumPrinters (enum_flags, NULL, enum_level, &dummy_byte, 1, &bytes_needed, &num_printers); if (ok) /* No printers, if just 1 byte is enough */ return Qnil; if (GetLastError () != ERROR_INSUFFICIENT_BUFFER) signal_enum_printer_error (); data_buf = (BYTE *) alloca (bytes_needed); ok = EnumPrinters (enum_flags, NULL, enum_level, data_buf, bytes_needed, &bytes_needed, &num_printers); if (!ok) signal_enum_printer_error (); if (num_printers == 0) /* Strange but... */ return Qnil; GCPRO2 (result, def_printer); while (num_printers--) { LPCTSTR printer_name; if (have_nt) { PRINTER_INFO_4 *info = (PRINTER_INFO_4*) data_buf; printer_name = info->pPrinterName; } else { PRINTER_INFO_5 *info = (PRINTER_INFO_5*) data_buf; printer_name = info->pPrinterName; } data_buf += enum_entry_size; result = Fcons (build_ext_string (printer_name, Qmswindows_tstr), result); } def_printer = msprinter_default_printer (); result = Fdelete (def_printer, result); result = Fcons (def_printer, result); RETURN_UNGCPRO (result); } /************************************************************************/ /* initialization */ /************************************************************************/ void syms_of_device_mswindows (void) { INIT_LRECORD_IMPLEMENTATION (devmode); DEFSUBR (Fmsprinter_get_settings); DEFSUBR (Fmsprinter_select_settings); DEFSUBR (Fmsprinter_apply_settings); DEFSUBR (Fmsprinter_settings_copy); DEFSUBR (Fmsprinter_settings_despecialize); DEFSUBR (Fmswindows_get_default_printer); DEFSUBR (Fmswindows_printer_list); DEFKEYWORD (Q_allow_selection); DEFKEYWORD (Q_allow_pages); DEFKEYWORD (Q_selected_page_button); DEFSYMBOL (Qselected_page_button); DEFSYMBOL (Qinit_pre_mswindows_win); DEFSYMBOL (Qinit_post_mswindows_win); } void console_type_create_device_mswindows (void) { CONSOLE_HAS_METHOD (mswindows, init_device); CONSOLE_HAS_METHOD (mswindows, finish_init_device); CONSOLE_HAS_METHOD (mswindows, mark_device); CONSOLE_HAS_METHOD (mswindows, delete_device); CONSOLE_HAS_METHOD (mswindows, device_system_metrics); CONSOLE_IMPLEMENTATION_FLAGS (mswindows, XDEVIMPF_PIXEL_GEOMETRY); CONSOLE_HAS_METHOD (msprinter, init_device); CONSOLE_HAS_METHOD (msprinter, mark_device); CONSOLE_HAS_METHOD (msprinter, delete_device); CONSOLE_HAS_METHOD (msprinter, device_system_metrics); CONSOLE_IMPLEMENTATION_FLAGS (msprinter, (XDEVIMPF_PIXEL_GEOMETRY | XDEVIMPF_IS_A_PRINTER | XDEVIMPF_NO_AUTO_REDISPLAY | XDEVIMPF_DONT_PREEMPT_REDISPLAY | XDEVIMPF_FRAMELESS_OK)); } void vars_of_device_mswindows (void) { DEFVAR_LISP ("mswindows-downcase-file-names", &Vmswindows_downcase_file_names /* Non-nil means convert all-upper case file names to lower case. This applies when performing completions and file name expansion. */ ); Vmswindows_downcase_file_names = Qnil; DEFVAR_LISP ("mswindows-get-true-file-attributes", &Vmswindows_get_true_file_attributes /* Non-nil means determine accurate link count in file-attributes. This option slows down file-attributes noticeably, so is disabled by default. Note that it is only useful for files on NTFS volumes, where hard links are supported. */ ); Vmswindows_get_true_file_attributes = Qnil; }