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Revision 1.133 by ayin, Sat Jul 28 20:15:18 2007 UTC vs.
Revision 1.215 by sf-exg, Sun May 20 16:34:42 2012 UTC

12emulator intended as an I<xterm>(1) replacement for users who do not 12emulator intended as an I<xterm>(1) replacement for users who do not
13require features such as Tektronix 4014 emulation and toolkit-style 13require features such as Tektronix 4014 emulation and toolkit-style
14configurability. As a result, B<rxvt-unicode> uses much less swap space -- 14configurability. As a result, B<rxvt-unicode> uses much less swap space --
15a significant advantage on a machine serving many X sessions. 15a significant advantage on a machine serving many X sessions.
16 16
17This document is also available on the World-Wide-Web at
18L<http://pod.tst.eu/http://cvs.schmorp.de/rxvt-unicode/doc/rxvt.1.pod>.
19
17=head1 FREQUENTLY ASKED QUESTIONS 20=head1 FREQUENTLY ASKED QUESTIONS
18 21
19See @@RXVT_NAME@@(7) (try C<man 7 @@RXVT_NAME@@>) for a list of 22See @@RXVT_NAME@@(7) (try C<man 7 @@RXVT_NAME@@>) for a list of
20frequently asked questions and answer to them and some common 23frequently asked questions and answer to them and some common
21problems. That document is also accessible on the World-Wide-Web at 24problems. That document is also accessible on the World-Wide-Web at
22L<http://cvs.schmorp.de/browse/rxvt-unicode/doc/rxvt.7.html>. 25L<http://pod.tst.eu/http://cvs.schmorp.de/rxvt-unicode/doc/rxvt.7.pod>.
23 26
24=head1 RXVT-UNICODE VS. RXVT 27=head1 RXVT-UNICODE VS. RXVT
25 28
26Unlike the original rxvt, B<rxvt-unicode> stores all text in Unicode 29Unlike the original rxvt, B<rxvt-unicode> stores all text in Unicode
27internally. That means it can store and display most scripts in the 30internally. That means it can store and display most scripts in the
28world. Being a terminal emulator, however, some things are very difficult, 31world. Being a terminal emulator, however, some things are very difficult,
29especially cursive scripts such as arabic, vertically written scripts 32especially cursive scripts such as arabic, vertically written scripts
30like mongolian or scripts requiring extremely complex combining rules, 33like mongolian or scripts requiring extremely complex combining rules,
31like tibetan or devenagari. Don't expect pretty output when using these 34like tibetan or devanagari. Don't expect pretty output when using these
32scripts. Most other scripts, latin, cyrillic, kanji, thai etc. should work 35scripts. Most other scripts, latin, cyrillic, kanji, thai etc. should work
33fine, though. A somewhat difficult case are right-to-left scripts, such 36fine, though. A somewhat difficult case are right-to-left scripts, such
34as hebrew: B<rxvt-unicode> adopts the view that bidirectional algorithms 37as hebrew: B<rxvt-unicode> adopts the view that bidirectional algorithms
35belong into the application, not the terminal emulator (too many things -- 38belong in the application, not the terminal emulator (too many things --
36such as cursor-movement while editing -- break otherwise), but that might 39such as cursor-movement while editing -- break otherwise), but that might
37change. 40change.
38 41
39If you are looking for a terminal that supports more exotic scripts, let 42If you are looking for a terminal that supports more exotic scripts, let
40me recommend C<mlterm>, which is a very user friendly, lean and clean 43me recommend C<mlterm>, which is a very user friendly, lean and clean
89 92
90Print out a message describing available options. 93Print out a message describing available options.
91 94
92=item B<-display> I<displayname> 95=item B<-display> I<displayname>
93 96
94Attempt to open a window on the named X display (B<-d> still 97Attempt to open a window on the named X display (the older form B<-d>
95respected). In the absence of this option, the display specified by the 98is still respected. but deprecated). In the absence of this option, the
96B<DISPLAY> environment variable is used. 99display specified by the B<DISPLAY> environment variable is used.
97 100
98=item B<-depth> I<bitdepth> 101=item B<-depth> I<bitdepth>
99 102
100Compile I<xft>: Attempt to find a visual with the given bit depth; 103Compile I<xft>: Attempt to find a visual with the given bit depth;
101resource B<depth>. 104resource B<depth>.
102 105
106[Please note that many X servers (and libXft) are buggy with
107respect to C<-depth 32> and/or alpha channels, and will cause all sorts
108of graphical corruption. This is harmless, but we can't do anything about
109this, so watch out]
110
103=item B<-geometry> I<geom> 111=item B<-geometry> I<geom>
104 112
105Window geometry (B<-g> still respected); resource B<geometry>. 113Window geometry (B<-g> still respected); resource B<geometry>.
106 114
107=item B<-rv>|B<+rv> 115=item B<-rv>|B<+rv>
114 122
115=item B<-ss>|B<+ss> 123=item B<-ss>|B<+ss>
116 124
117Turn on/off skip scrolling (allow multiple screens per refresh); resource B<skipScroll>. 125Turn on/off skip scrolling (allow multiple screens per refresh); resource B<skipScroll>.
118 126
119=item B<-ip>|B<+ip> | B<-tr>|B<+tr> 127=item B<-tr>|B<+tr>
120 128
121Turn on/off inheriting parent window's pixmap. Alternative form is 129Turn on/off pseudo-transparency by using the root pixmap as background; resource B<transparent>.
122B<-tr>; resource B<inheritPixmap>.
123 130
124I<Please note that transparency of any kind if completely unsupported by 131B<-ip> is still accepted as an obsolete alias but will be removed in
125the author. Don't bug him with installation questions! Read the FAQ (man 7 132future versions.
126@@RXVT_NAME@@)!>
127 133
128=item B<-fade> I<number> 134=item B<-fade> I<number>
129 135
130Fade the text by the given percentage when focus is lost. Small values 136Fade the text by the given percentage when focus is lost. Small values
131fade a little only, 100 completely replaces all colours by the fade 137fade a little only, 100 completely replaces all colours by the fade
136Fade to this colour when fading is used (see B<-fade>). The default colour 142Fade to this colour when fading is used (see B<-fade>). The default colour
137is opaque black. resource B<fadeColor>. 143is opaque black. resource B<fadeColor>.
138 144
139=item B<-tint> I<colour> 145=item B<-tint> I<colour>
140 146
141Tint the transparent background pixmap with the given colour when 147Tint the transparent background with the given colour;
142transparency is enabled with B<-tr> or B<-ip>. This only works for 148resource I<tintColor>.
143non-tiled backgrounds, currently. See also the B<-sh> option that can be
144used to brighten or darken the image in addition to tinting it; resource
145I<tintColor>. Example:
146 149
147 @@RXVT_NAME@@ -tr -tint blue -sh 40
148
149=item B<-sh> I<number> 150=item B<-sh> I<number>
150 151
151Darken (0 .. 100) or lighten (-1 .. -100) the transparent 152Darken (0 .. 99) or lighten (101 .. 200) the transparent background.
152background image in addition to (or instead of) tinting it; 153A value of 100 means no shading; resource I<shading>.
153resource I<shading>.
154 154
155=item B<-blt> I<string>
156
157Specify background blending type. If background pixmap is specified
158at the same time as transparency - such pixmap will be blended over
159transparency image, using method specified. Supported values are :
160B<add>, B<alphablend>, B<allanon> - color values averaging, B<colorize>,
161B<darken>, B<diff>, B<dissipate>, B<hue>, B<lighten>, B<overlay>,
162B<saturate>, B<screen>, B<sub>, B<tint>, B<value>. The default is
163alpha-blending; resource I<blendType>.
164
165=item B<-blr> I<number> 155=item B<-blr> I<HxV>
166 156
167Apply Gaussian Blur with the specified radius to the transparent 157Apply Gaussian Blur with the specified radii to the transparent
168background image; resource I<blurRadius>. 158background. If a single number is specified, the vertical and
159horizontal radii are considered to be the same. Setting one of the
160radii to 1 and the other to a large number creates interesting effects
161on some backgrounds. The maximum radius value is 128. An horizontal or
162vertical radius of 0 disables blurring;
163resource I<blurRadius>.
164
165=item B<-icon> I<file>
166
167Compile I<pixbuf>: Use the specified image as application icon. This
168is used by many window managers, taskbars and pagers to represent the
169application window; resource I<iconFile>.
169 170
170=item B<-bg> I<colour> 171=item B<-bg> I<colour>
171 172
172Window background colour; resource B<background>. 173Window background colour; resource B<background>.
173 174
174=item B<-fg> I<colour> 175=item B<-fg> I<colour>
175 176
176Window foreground colour; resource B<foreground>. 177Window foreground colour; resource B<foreground>.
177 178
178=item B<-pixmap> I<file[;geom]> 179=item B<-pixmap> I<file[;oplist]>
179 180
180Compile I<afterimage>: Specify image file for the background and also 181Compile I<pixbuf>: Specify image file for the background and also
181optionally specify its scaling with a geometry string. Note you may need to 182optionally specify a list of operations to modify it. Note you may need to
182add quotes to avoid special shell interpretation of the C<;> in the 183add quotes to avoid special shell interpretation of the C<;> in the
183command-line; for more details see resource B<backgroundPixmap>. 184command-line; for more details see resource B<backgroundPixmap>.
184 185
185=item B<-cr> I<colour> 186=item B<-cr> I<colour>
186 187
233italic> >> characters are to be printed. See resource B<boldItalicFont> 234italic> >> characters are to be printed. See resource B<boldItalicFont>
234for details. 235for details.
235 236
236=item B<-is>|B<+is> 237=item B<-is>|B<+is>
237 238
238Compile I<font-styles>: Bold/Italic font styles imply high intensity 239Compile I<font-styles>: Bold/Blink font styles imply high intensity
239foreground/background (default). See resource B<intensityStyles> for 240foreground/background (default). See resource B<intensityStyles> for
240details. 241details.
241 242
242=item B<-name> I<name> 243=item B<-name> I<name>
243 244
261 262
262=item B<-sb>|B<+sb> 263=item B<-sb>|B<+sb>
263 264
264Turn on/off scrollbar; resource B<scrollBar>. 265Turn on/off scrollbar; resource B<scrollBar>.
265 266
267=item B<-sr>|B<+sr>
268
269Put scrollbar on right/left; resource B<scrollBar_right>.
270
271=item B<-st>|B<+st>
272
273Display rxvt (non XTerm/NeXT) scrollbar without/with a trough;
274resource B<scrollBar_floating>.
275
266=item B<-si>|B<+si> 276=item B<-si>|B<+si>
267 277
268Turn on/off scroll-to-bottom on TTY output inhibit; resource 278Turn on/off scroll-to-bottom on TTY output inhibit; resource
269B<scrollTtyOutput> has opposite effect. 279B<scrollTtyOutput> has opposite effect.
270 280
276=item B<-sw>|B<+sw> 286=item B<-sw>|B<+sw>
277 287
278Turn on/off scrolling with the scrollback buffer as new lines appear. 288Turn on/off scrolling with the scrollback buffer as new lines appear.
279This only takes effect if B<-si> is also given; resource 289This only takes effect if B<-si> is also given; resource
280B<scrollWithBuffer>. 290B<scrollWithBuffer>.
281
282=item B<-sr>|B<+sr>
283
284Put scrollbar on right/left; resource B<scrollBar_right>.
285
286=item B<-st>|B<+st>
287
288Display rxvt (non XTerm/NeXT) scrollbar without/with a trough;
289resource B<scrollBar_floating>.
290 291
291=item B<-ptab>|B<+ptab> 292=item B<-ptab>|B<+ptab>
292 293
293If enabled (default), "Horizontal Tab" characters are being stored as 294If enabled (default), "Horizontal Tab" characters are being stored as
294actual wide characters in the screen buffer, which makes it possible to 295actual wide characters in the screen buffer, which makes it possible to
298 299
299=item B<-bc>|B<+bc> 300=item B<-bc>|B<+bc>
300 301
301Blink the cursor; resource B<cursorBlink>. 302Blink the cursor; resource B<cursorBlink>.
302 303
304=item B<-uc>|B<+uc>
305
306Make the cursor underlined; resource B<cursorUnderline>.
307
303=item B<-iconic> 308=item B<-iconic>
304 309
305Start iconified, if the window manager supports that option. 310Start iconified, if the window manager supports that option.
306Alternative form is B<-ic>. 311Alternative form is B<-ic>.
307 312
323 328
324=item B<-bl> 329=item B<-bl>
325 330
326Compile I<frills>: Set MWM hints to request a borderless window, i.e. 331Compile I<frills>: Set MWM hints to request a borderless window, i.e.
327if honoured by the WM, the rxvt-unicode window will not have window 332if honoured by the WM, the rxvt-unicode window will not have window
328decorations; resource B<borderLess>. 333decorations; resource B<borderLess>. If the window manager does not
334support MWM hints (e.g. kwin), enables override-redirect mode.
329 335
330=item B<-override-redirect> 336=item B<-override-redirect>
331 337
332Compile I<frills>: Sets override-redirect on the window; resource 338Compile I<frills>: Sets override-redirect on the window; resource
333B<override-redirect>. 339B<override-redirect>.
341 347
342=item B<-lsp> I<number> 348=item B<-lsp> I<number>
343 349
344Compile I<frills>: Lines (pixel height) to insert between each row of 350Compile I<frills>: Lines (pixel height) to insert between each row of
345the display. Useful to work around font rendering problems; resource 351the display. Useful to work around font rendering problems; resource
346B<linespace>. 352B<lineSpace>.
353
354=item B<-letsp> I<number>
355
356Compile I<frills>: Amount to adjust the computed character width by
357to control overall letter spacing. Negative values will tighten up the
358letter spacing, positive values will space letters out more. Useful to
359work around odd font metrics; resource B<letterSpace>.
347 360
348=item B<-tn> I<termname> 361=item B<-tn> I<termname>
349 362
350This option specifies the name of the terminal type to be set in the 363This option specifies the name of the terminal type to be set in the
351B<TERM> environment variable. This terminal type must exist in the 364B<TERM> environment variable. This terminal type must exist in the
406 419
407=item B<-tcw> 420=item B<-tcw>
408 421
409Change the meaning of triple-click selection with the left mouse 422Change the meaning of triple-click selection with the left mouse
410button. Only effective when the original (non-perl) selection code is 423button. Only effective when the original (non-perl) selection code is
411in-use. Instead of selecting a full line it will extend the selection the 424in-use. Instead of selecting a full line it will extend the selection to
412end of the logical line only. resource B<tripleclickwords>. 425the end of the logical line only. resource B<tripleclickwords>.
413 426
414=item B<-insecure> 427=item B<-insecure>
415 428
416Enable "insecure" mode, which currently enables most of the escape 429Enable "insecure" mode, which currently enables most of the escape
417sequences that echo strings. See the resource B<insecure> for more 430sequences that echo strings. See the resource B<insecure> for more
437 450
438Turn on/off hold window after exit support. If enabled, @@RXVT_NAME@@ 451Turn on/off hold window after exit support. If enabled, @@RXVT_NAME@@
439will not immediately destroy its window when the program executed within 452will not immediately destroy its window when the program executed within
440it exits. Instead, it will wait till it is being killed or closed by the 453it exits. Instead, it will wait till it is being killed or closed by the
441user; resource B<hold>. 454user; resource B<hold>.
455
456=item B<-cd> I<path>
457
458Sets the working directory for the shell (or the command specified via
459B<-e>). The I<path> must be an absolute path and it must exist for
460@@RXVT_NAME@@ to start; resource B<chdir>.
461
462=item B<-xrm> I<string>
463
464Works like the X Toolkit option of the same name, by adding the I<string>
465as if it were specified in a resource file. Resource values specified this
466way take precedence over all other resource specifications.
467
468Note that you need to use the I<same> syntax as in the .Xdefaults file,
469e.g. C<*.background: black>. Also note that all @@RXVT_NAME@@-specific
470options can be specified as long-options on the commandline, so use
471of B<-xrm> is mostly limited to cases where you want to specify other
472resources (e.g. for input methods) or for compatibility with other
473programs.
442 474
443=item B<-keysym.>I<sym> I<string> 475=item B<-keysym.>I<sym> I<string>
444 476
445Remap a key symbol. See resource B<keysym>. 477Remap a key symbol. See resource B<keysym>.
446 478
481If this switch is given, @@RXVT_NAME@@ will not create any utmp/wtmp 513If this switch is given, @@RXVT_NAME@@ will not create any utmp/wtmp
482entries and will not tinker with pty/tty permissions - you have to do that 514entries and will not tinker with pty/tty permissions - you have to do that
483yourself if you want that. 515yourself if you want that.
484 516
485As an extremely special case, specifying C<-1> will completely suppress 517As an extremely special case, specifying C<-1> will completely suppress
486pty/tty operations. 518pty/tty operations, which is probably only useful in conjunction with some
519perl extension that manages the terminal.
487 520
488Here is a example in perl that illustrates how this option can be used (a 521Here is a example in perl that illustrates how this option can be used (a
489longer example is in F<doc/pty-fd>): 522longer example is in F<doc/pty-fd>):
490 523
491 use IO::Pty; 524 use IO::Pty;
505Comma-separated list of perl extension scripts to use (or not to use) in 538Comma-separated list of perl extension scripts to use (or not to use) in
506this terminal instance. See resource B<perl-ext> for details. 539this terminal instance. See resource B<perl-ext> for details.
507 540
508=back 541=back
509 542
510=head1 RESOURCES (available also as long-options) 543=head1 RESOURCES
511 544
512Note: `@@RXVT_NAME@@ --help' gives a list of all resources (long 545Note: `@@RXVT_NAME@@ --help' gives a list of all resources (long
513options) compiled into your version. 546options) compiled into your version. All resources are also available as
547long-options.
514 548
515You can set and change the resources using X11 tools like B<xrdb>. Many 549You can set and change the resources using X11 tools like B<xrdb>. Many
516distribution do also load settings from the B<~/.Xresources> file when X 550distribution do also load settings from the B<~/.Xresources> file when X
517starts. @@RXVT_NAME@@ will consult the following files/resources in order, 551starts. @@RXVT_NAME@@ will consult the following files/resources in order,
518with later settings overwriting earlier ones: 552with later settings overwriting earlier ones:
519 553
520 1. system-wide app-defaults file, either locale-dependent OR global
521 2. app-defaults file in $XAPPLRESDIR 554 1. app-defaults file in $XAPPLRESDIR
555 2. $HOME/.Xdefaults
522 3. RESOURCE_MANAGER property on root-window OR $HOME/.Xdefaults 556 3. RESOURCE_MANAGER property on root-window of screen 0
523 4. SCREEN_RESOURCES for the current screen 557 4. SCREEN_RESOURCES property on root-window of the current screen
524 5. $XENVIRONMENT file OR $HOME/.Xdefaults-<nodename> 558 5. $XENVIRONMENT file OR $HOME/.Xdefaults-<nodename>
559 6. resources specified via -xrm on the commandline
525 560
526Note that when reading X resources, B<@@RXVT_NAME@@> recognizes two class 561Note that when reading X resources, B<@@RXVT_NAME@@> recognizes two class
527names: B<Rxvt> and B<URxvt>. The class name B<Rxvt> allows resources 562names: B<Rxvt> and B<URxvt>. The class name B<Rxvt> allows resources
528common to both B<@@RXVT_NAME@@> and the original I<rxvt> to be easily 563common to both B<@@RXVT_NAME@@> and the original I<rxvt> to be easily
529configured, while the class name B<URxvt> allows resources unique to 564configured, while the class name B<URxvt> allows resources unique to
539=item B<depth:> I<bitdepth> 574=item B<depth:> I<bitdepth>
540 575
541Compile I<xft>: Attempt to find a visual with the given bit depth; 576Compile I<xft>: Attempt to find a visual with the given bit depth;
542option B<-depth>. 577option B<-depth>.
543 578
579=item B<buffered:> I<boolean>
580
581Compile I<xft>: Turn on/off double-buffering for xft (default enabled).
582On some card/driver combination enabling it slightly decreases
583performance, on most it greatly helps it. The slowdown is small, so it
584should normally be enabled.
585
544=item B<geometry:> I<geom> 586=item B<geometry:> I<geom>
545 587
546Create the window with the specified X window geometry [default 80x24]; 588Create the window with the specified X window geometry [default 80x24];
547option B<-geometry>. 589option B<-geometry>.
548 590
561Use the specified colour for the colour value I<n>, where 0-7 603Use the specified colour for the colour value I<n>, where 0-7
562corresponds to low-intensity (normal) colours and 8-15 corresponds to 604corresponds to low-intensity (normal) colours and 8-15 corresponds to
563high-intensity (bold = bright foreground, blink = bright background) 605high-intensity (bold = bright foreground, blink = bright background)
564colours. The canonical names are as follows: 0=black, 1=red, 2=green, 606colours. The canonical names are as follows: 0=black, 1=red, 2=green,
5653=yellow, 4=blue, 5=magenta, 6=cyan, 7=white, but the actual colour 6073=yellow, 4=blue, 5=magenta, 6=cyan, 7=white, but the actual colour
566names used are listed in the B<COLORS AND GRAPHICS> section. 608names used are listed in the B<COLOURS AND GRAPHICS> section.
567 609
568Colours higher than 15 cannot be set using resources (yet), but can be 610Colours higher than 15 cannot be set using resources (yet), but can be
569changed using an escape command (see @@RXVT_NAME@@(7)). 611changed using an escape command (see @@RXVT_NAME@@(7)).
570 612
571Colours 16-79 form a standard 4x4x4 colour cube (the same as xterm with 613Colours 16-79 form a standard 4x4x4 colour cube (the same as xterm with
582=item B<colorUL:> I<colour> 624=item B<colorUL:> I<colour>
583 625
584Use the specified colour to display underlined characters when the 626Use the specified colour to display underlined characters when the
585foreground colour is the default. 627foreground colour is the default.
586 628
587=item B<colorRV:> I<colour>
588
589Use the specified colour as the background for reverse video characters
590when OPTION_HC is disabled (--disable-frills).
591
592=item B<underlineColor:> I<colour> 629=item B<underlineColor:> I<colour>
593 630
594If set, use the specified colour as the colour for the underline 631If set, use the specified colour as the colour for the underline
595itself. If unset, use the foreground colour. 632itself. If unset, use the foreground colour.
633
634=item B<highlightColor:> I<colour>
635
636If set, use the specified colour as the background for highlighted
637characters. If unset, use reverse video.
638
639=item B<highlightTextColor:> I<colour>
640
641If set and highlightColor is set, use the specified colour as the
642foreground for highlighted characters.
596 643
597=item B<cursorColor:> I<colour> 644=item B<cursorColor:> I<colour>
598 645
599Use the specified colour for the cursor. The default is to use the 646Use the specified colour for the cursor. The default is to use the
600foreground colour; option B<-cr>. 647foreground colour; option B<-cr>.
607 654
608=item B<reverseVideo:> I<boolean> 655=item B<reverseVideo:> I<boolean>
609 656
610B<True>: simulate reverse video by foreground and background colours; 657B<True>: simulate reverse video by foreground and background colours;
611option B<-rv>. B<False>: regular screen colours [default]; option 658option B<-rv>. B<False>: regular screen colours [default]; option
612B<+rv>. See note in B<COLORS AND GRAPHICS> section. 659B<+rv>. See note in B<COLOURS AND GRAPHICS> section.
613 660
614=item B<jumpScroll:> I<boolean> 661=item B<jumpScroll:> I<boolean>
615 662
616B<True>: specify that jump scrolling should be used. When receiving lots 663B<True>: specify that jump scrolling should be used. When receiving lots
617of lines, @@RXVT_NAME@@ will only scroll once a whole screen height of lines 664of lines, @@RXVT_NAME@@ will only scroll once a whole screen height of lines
631 678
632B<False>: specify that everything is to be displayed, even 679B<False>: specify that everything is to be displayed, even
633if the refresh is too fast for the human eye to read anything (or the 680if the refresh is too fast for the human eye to read anything (or the
634monitor to display anything); option B<+ss>. 681monitor to display anything); option B<+ss>.
635 682
636=item B<inheritPixmap:> I<boolean> 683=item B<transparent:> I<boolean>
637 684
638B<True>: make the background inherit the parent windows' pixmap, giving 685Turn on/off pseudo-transparency by using the root pixmap as background.
639artificial transparency. B<False>: do not inherit the parent windows'
640pixmap.
641 686
642I<Please note that transparency of any kind if completely unsupported by 687B<inheritPixmap> is still accepted as an obsolete alias but will be removed in
643the author. Don't bug him with installation questions!> 688future versions.
644 689
645=item B<fading:> I<number> 690=item B<fading:> I<number>
646 691
647Fade the text by the given percentage when focus is lost; option B<-fade>. 692Fade the text by the given percentage when focus is lost; option B<-fade>.
648 693
651Fade to this colour, when fading is used (see B<fading:>). The default 696Fade to this colour, when fading is used (see B<fading:>). The default
652colour is black; option B<-fadecolor>. 697colour is black; option B<-fadecolor>.
653 698
654=item B<tintColor:> I<colour> 699=item B<tintColor:> I<colour>
655 700
656Tint the transparent background pixmap with the given colour; option 701Tint the transparent background with the given colour. If the RENDER
657B<-tint>. 702extension is not available only black, red, green, yellow, blue,
703magenta, cyan and white tints can be performed server-side. Note that
704a black tint yields a completely black image while a white tint yields
705the image unchanged; option B<-tint>.
658 706
659=item B<shading:> I<number> 707=item B<shading:> I<number>
660 708
661Darken (0 .. 100) or lighten (-1 .. -100) the transparent background image 709Darken (0 .. 99) or lighten (101 .. 200) the transparent background.
662in addition to tinting it; option B<-sh>. 710A value of 100 means no shading; option B<-sh>.
663
664=item B<blendType:> I<string>
665
666Specify background blending type; option B<-blt>.
667 711
668=item B<blurRadius:> I<number> 712=item B<blurRadius:> I<number>
669 713
670Apply Gaussian Blurr with the specified radius to the transparent 714Apply gaussian blur with the specified radius to the transparent
671background image; option B<-blr>. 715background; option B<-blr>.
716
717=item B<iconFile:> I<file>
718
719Set the application icon pixmap; option B<-icon>.
672 720
673=item B<scrollColor:> I<colour> 721=item B<scrollColor:> I<colour>
674 722
675Use the specified colour for the scrollbar [default #B2B2B2]. 723Use the specified colour for the scrollbar [default #B2B2B2].
676 724
682=item B<borderColor:> I<colour> 730=item B<borderColor:> I<colour>
683 731
684The colour of the border around the text area and between the scrollbar 732The colour of the border around the text area and between the scrollbar
685and the text. 733and the text.
686 734
687=item B<backgroundPixmap:> I<file[;geom]> 735=item B<backgroundPixmap:> I<file[;oplist]>
688 736
689Use the specified image file for the background and also optionally 737Use the specified image file for the background and also
690specify its scaling with a geometry string B<WxH+X+Y>, 738optionally specify a colon separated list of operations to modify it.
691in which B<"W" / "H"> specify the horizontal/vertical scale (percent), 739Supported operations are:
740
741=over 4
742
743=item B<WxH+X+Y>
744
745sets scale and position. B<"W" / "H"> specify the horizontal/vertical
692and B<"X" / "Y"> locate the image centre (percent). 746scale (percent), and B<"X" / "Y"> locate the image centre (percent). A
693A scale of 0 displays the image with tiling. A scale of 1 displays the 747scale of 0 disables scaling.
694image without any scaling. A scale of 2 to 9 specifies an integer 748
695number of images in that direction. No image will be magnified beyond 749=item B<op=tile>
69610 times its original size. The maximum permitted scale is 1000. 750
697Special string of B<"auto"> used as a geometry will cause image to be 751enables tiling
698automatically scaled to match window size. 752
753=item B<op=keep-aspect>
754
755maintain the image aspect ratio when scaling
756
757=item B<op=root-align>
758
759use the position of the terminal window relative to the root window as
760the image offset, simulating a root window background
761
762=back
763
764The default scale and position setting is C<100x100+50+50>.
765Alternatively, a predefined set of templates can be used to achieve
766the most common setups:
767
768=over 4
769
770=item B<style=tiled>
771
772the image is tiled with no scaling. Equivalent to 0x0+0+0:op=tile
773
774=item B<style=aspect-stretched>
775
776the image is scaled to fill the whole window maintaining the aspect
777ratio and centered. Equivalent to 100x100+50+50:op=keep-aspect
778
779=item B<style=stretched>
780
781the image is scaled to fill the whole window. Equivalent to 100x100
782
783=item B<style=centered>
784
785the image is centered with no scaling. Equivalent to 0x0+50+50
786
787=item B<style=root-tiled>
788
789the image is tiled with no scaling and using 'root' positioning.
790Equivalent to 0x0:op=tile:op=root-align
791
792=back
793
794If multiple templates are specified the last one wins. Note that a
795template overrides all the scale, position and operations settings.
796
699If used in conjunction with B<-tr> option - specified pixmap will be 797If used in conjunction with B<-tr> option, the specified pixmap will be
700blended over transparency image using either alpha-blending, or any 798blended over the transparent background using alpha-blending.
701other blending type, specified with B<-blt "type"> option.
702[default 0x0+50+50]
703 799
704=item B<path:> I<path> 800=item B<path:> I<path>
705 801
706Specify the colon-delimited search path for finding XPM files. 802Specify the colon-delimited search path for finding background image files.
707 803
708=item B<font:> I<fontlist> 804=item B<font:> I<fontlist>
709 805
710Select the fonts to be used. This is a comma separated list of font names 806Select the fonts to be used. This is a comma separated list of font names
711that are checked in order when trying to find glyphs for characters. The 807that are checked in order when trying to find glyphs for characters. The
734it is named first) and thus defines the character cell grid to be 9 pixels 830it is named first) and thus defines the character cell grid to be 9 pixels
735wide and 15 pixels high. 831wide and 15 pixels high.
736 832
737The second font is just used to add additional unicode characters not in 833The second font is just used to add additional unicode characters not in
738the base font, likewise the third, which is unfortunately non-bold, but 834the base font, likewise the third, which is unfortunately non-bold, but
739the bold version of the font does contain less characters, so this is a 835the bold version of the font does contain fewer characters, so this is a
740useful supplement. 836useful supplement.
741 837
742The third font is an Xft font with aliasing turned off, and the characters 838The third font is an Xft font with aliasing turned off, and the characters
743are limited to the B<JIS 0208> codeset (i.e. japanese kanji). The font 839are limited to the B<JIS 0208> codeset (i.e. japanese kanji). The font
744contains other characters, but we are not interested in them. 840contains other characters, but we are not interested in them.
768text font will being used for the given style. 864text font will being used for the given style.
769 865
770=item B<intensityStyles:> I<boolean> 866=item B<intensityStyles:> I<boolean>
771 867
772When font styles are not enabled, or this option is enabled (B<True>, 868When font styles are not enabled, or this option is enabled (B<True>,
773option B<-is>, the default), bold and italic font styles imply high 869option B<-is>, the default), bold/blink font styles imply high
774intensity foreground/background colours. Disabling this option (B<False>, 870intensity foreground/background colours. Disabling this option (B<False>,
775option B<+is>) disables this behaviour, the high intensity colours are not 871option B<+is>) disables this behaviour, the high intensity colours are not
776reachable. 872reachable.
777 873
778=item B<selectstyle:> I<mode>
779
780Set mouse selection style to B<old> which is 2.20, B<oldword> which
781is xterm style with 2.20 old word selection, or anything else which
782gives xterm style selection. Only effective when the original (non-perl)
783selection code is in use.
784
785=item B<scrollstyle:> I<mode>
786
787Set scrollbar style to B<rxvt>, B<plain>, B<next> or B<xterm>. B<plain> is
788the author's favourite.
789
790=item B<title:> I<string> 874=item B<title:> I<string>
791 875
792Set window title string, the default title is the command-line 876Set window title string, the default title is the command-line
793specified after the B<-e> option, if any, otherwise the application 877specified after the B<-e> option, if any, otherwise the application
794name; option B<-title>. 878name; option B<-title>.
807=item B<urgentOnBell:> I<boolean> 891=item B<urgentOnBell:> I<boolean>
808 892
809B<True>: set the urgency hint for the wm on receipt of a bell character. 893B<True>: set the urgency hint for the wm on receipt of a bell character.
810B<False>: do not set the urgency hint [default]. 894B<False>: do not set the urgency hint [default].
811 895
896@@RXVT_NAME@@ resets the urgency hint on every focus change.
897
812=item B<visualBell:> I<boolean> 898=item B<visualBell:> I<boolean>
813 899
814B<True>: use visual bell on receipt of a bell character; option B<-vb>. 900B<True>: use visual bell on receipt of a bell character; option B<-vb>.
815B<False>: no visual bell [default]; option B<+vb>. 901B<False>: no visual bell [default]; option B<+vb>.
816 902
839 URxvt.print-pipe: cat > $(TMPDIR=$HOME mktemp urxvt.XXXXXX) 925 URxvt.print-pipe: cat > $(TMPDIR=$HOME mktemp urxvt.XXXXXX)
840 926
841This creates a new file in your home directory with the screen contents 927This creates a new file in your home directory with the screen contents
842every time you hit C<Print>. 928every time you hit C<Print>.
843 929
930=item B<scrollstyle:> I<mode>
931
932Set scrollbar style to B<rxvt>, B<plain>, B<next> or B<xterm>. B<plain> is
933the author's favourite.
934
935=item B<thickness:> I<number>
936
937Set the scrollbar width in pixels.
938
844=item B<scrollBar:> I<boolean> 939=item B<scrollBar:> I<boolean>
845 940
846B<True>: enable the scrollbar [default]; option B<-sb>. B<False>: 941B<True>: enable the scrollbar [default]; option B<-sb>. B<False>:
847disable the scrollbar; option B<+sb>. 942disable the scrollbar; option B<+sb>.
848 943
867B<False>: do not scroll to bottom when tty receives output; option 962B<False>: do not scroll to bottom when tty receives output; option
868B<+si>. 963B<+si>.
869 964
870=item B<scrollWithBuffer:> I<boolean> 965=item B<scrollWithBuffer:> I<boolean>
871 966
872B<True>: scroll with scrollback buffer when tty receives new lines (and 967B<True>: scroll with scrollback buffer when tty receives new lines (i.e.
873B<scrollTtyOutput> is False); option B<-sw>. B<False>: do not scroll 968try to show the same lines) and B<scrollTtyOutput> is False; option
874with scrollback buffer when tty receives new lines; option B<+sw>. 969B<-sw>. B<False>: do not scroll with scrollback buffer when tty receives
970new lines; option B<+sw>.
875 971
876=item B<scrollTtyKeypress:> I<boolean> 972=item B<scrollTtyKeypress:> I<boolean>
877 973
878B<True>: scroll to bottom when a non-special key is pressed. Special keys 974B<True>: scroll to bottom when a non-special key is pressed. Special keys
879are those which are intercepted by rxvt-unicode for special handling and 975are those which are intercepted by rxvt-unicode for special handling and
910=item B<termName:> I<termname> 1006=item B<termName:> I<termname>
911 1007
912Specifies the terminal type name to be set in the B<TERM> environment 1008Specifies the terminal type name to be set in the B<TERM> environment
913variable; option B<-tn>. 1009variable; option B<-tn>.
914 1010
915=item B<linespace:> I<number> 1011=item B<lineSpace:> I<number>
916 1012
917Specifies number of lines (pixel height) to insert between each row of 1013Specifies number of lines (pixel height) to insert between each row of
918the display [default 0]; option B<-lsp>. 1014the display [default 0]; option B<-lsp>.
919 1015
920=item B<meta8:> I<boolean> 1016=item B<meta8:> I<boolean>
934 1030
935=item B<cursorBlink:> I<boolean> 1031=item B<cursorBlink:> I<boolean>
936 1032
937B<True>: blink the cursor. B<False>: do not blink the cursor [default]; 1033B<True>: blink the cursor. B<False>: do not blink the cursor [default];
938option B<-bc>. 1034option B<-bc>.
1035
1036=item B<cursorUnderline:> I<boolean>
1037
1038B<True>: Make the cursor underlined. B<False>: Make the cursor a box [default];
1039option B<-uc>.
939 1040
940=item B<pointerBlank:> I<boolean> 1041=item B<pointerBlank:> I<boolean>
941 1042
942B<True>: blank the pointer when a key is pressed or after a set number 1043B<True>: blank the pointer when a key is pressed or after a set number
943of seconds of inactivity. B<False>: the pointer is always visible 1044of seconds of inactivity. B<False>: the pointer is always visible
957large number (e.g. C<987654321>) to effectively disable the timeout. 1058large number (e.g. C<987654321>) to effectively disable the timeout.
958 1059
959=item B<backspacekey:> I<string> 1060=item B<backspacekey:> I<string>
960 1061
961The string to send when the backspace key is pressed. If set to B<DEC> 1062The string to send when the backspace key is pressed. If set to B<DEC>
962or unset it will send B<Delete> (code 127) or, if shifted, B<Backspace> 1063or unset it will send B<Delete> (code 127) or, with control, B<Backspace>
963(code 8) - which can be reversed with the appropriate DEC private mode 1064(code 8) - which can be reversed with the appropriate DEC private mode
964escape sequence. 1065escape sequence.
965 1066
966=item B<deletekey:> I<string> 1067=item B<deletekey:> I<string>
967 1068
980will be created). In this mode, characters outside ISO-8859-1 can be used. 1081will be created). In this mode, characters outside ISO-8859-1 can be used.
981 1082
982When the selection extension is not used, only ISO-8859-1 characters can 1083When the selection extension is not used, only ISO-8859-1 characters can
983be used. If not specified, the built-in default is used: 1084be used. If not specified, the built-in default is used:
984 1085
985B<< BACKSLASH `"'&()*,;<=>?@[]{|} >> 1086B<< BACKSLASH `"'&()*,;<=>?@[]^{|} >>
986 1087
987=item B<preeditType:> I<style> 1088=item B<preeditType:> I<style>
988 1089
989B<OverTheSpot>, B<OffTheSpot>, B<Root>; option B<-pt>. 1090B<OverTheSpot>, B<OffTheSpot>, B<Root>; option B<-pt>.
990 1091
1046 1147
1047=item B<secondaryScroll:> I<boolean> 1148=item B<secondaryScroll:> I<boolean>
1048 1149
1049Turn on/off secondary screen scroll (default enabled). If this 1150Turn on/off secondary screen scroll (default enabled). If this
1050option is enabled, scrolls on the secondary screen will change the 1151option is enabled, scrolls on the secondary screen will change the
1051scrollback buffer and switching to/from the secondary screen will 1152scrollback buffer and, when secondaryScreen is off, switching
1052instead scroll the screen up. 1153to/from the secondary screen will instead scroll the screen up.
1053 1154
1054=item B<hold>: I<boolean> 1155=item B<hold>: I<boolean>
1055 1156
1056Turn on/off hold window after exit support. If enabled, @@RXVT_NAME@@ 1157Turn on/off hold window after exit support. If enabled, @@RXVT_NAME@@
1057will not immediately destroy its window when the program executed within 1158will not immediately destroy its window when the program executed within
1058it exits. Instead, it will wait till it is being killed or closed by the 1159it exits. Instead, it will wait till it is being killed or closed by the
1059user. 1160user.
1161
1162=item B<chdir>: I<path>
1163
1164Sets the working directory for the shell (or the command specified via
1165B<-e>). The I<path> must be an absolute path and it must exist for
1166@@RXVT_NAME@@ to start. If it isn't specified then the current working
1167directory will be used; option B<-cd>.
1060 1168
1061=item B<keysym.>I<sym>: I<string> 1169=item B<keysym.>I<sym>: I<string>
1062 1170
1063Compile I<frills>: Associate I<string> with keysym I<sym>. The 1171Compile I<frills>: Associate I<string> with keysym I<sym>. The
1064intervening resource name B<keysym.> cannot be omitted. 1172intervening resource name B<keysym.> cannot be omitted.
1078searching keysym macros from B</usr/X11R6/include/X11/keysymdef.h> and 1186searching keysym macros from B</usr/X11R6/include/X11/keysymdef.h> and
1079omitting the prefix B<XK_>. Alternatively you can specify I<key> by its hex 1187omitting the prefix B<XK_>. Alternatively you can specify I<key> by its hex
1080keysym value (B<0x0000 - 0xFFFF>). Note that the lookup of I<sym>s is not 1188keysym value (B<0x0000 - 0xFFFF>). Note that the lookup of I<sym>s is not
1081performed in an exact manner; however, the closest match is assured. 1189performed in an exact manner; however, the closest match is assured.
1082 1190
1083I<string> may contain escape values (C<\a>: bell, C<\b>: backspace, 1191I<string> may contain escape values (C<\n>: newline, C<\000>: octal
1084C<\e>, C<\E>: escape, C<\n>: newline, C<\r>: carriage return, C<\t>: tab, 1192number), see RESOURCES in C<man 7 X> for further details.
1085C<\000>: octal number) or verbatim control characters (C<^?>: delete,
1086C<^@>: null, C<^A> ...) and may be enclosed with double quotes so that it
1087can start or end with whitespace. B<This feature is deprecated and will
1088be removed>.
1089 1193
1090Please note that you need to double the C<\> in resource files, as
1091Xlib itself does its own de-escaping (you can use C<\033> instead of
1092C<\e> (and so on), which will work with both Xt and @@RXVT_NAME@@'s own
1093processing).
1094
1095You can define a range of keysyms in one shot by providing a I<string> 1194You can define a range of keysyms in one shot by
1195loading the C<keysym-list> perl extension and providing a I<string>
1096with pattern B<list/PREFIX/MIDDLE/SUFFIX>, where the delimiter `/' 1196with pattern B<list/PREFIX/MIDDLE/SUFFIX>, where the delimiter `/'
1097should be a character not used by the strings. 1197should be a character not used by the strings.
1098 1198
1099Its usage can be demonstrated by an example: 1199Its usage can be demonstrated by an example:
1100 1200
1101 URxvt.keysym.M-C-0x61: list|\033<M-C-|abc|> 1201 URxvt.keysym.M-C-0x61: list|\033<|abc|>
1102 1202
1103The above line is equivalent to the following three lines: 1203The above line is equivalent to the following three lines:
1104 1204
1105 URxvt.keysym.Meta-Control-0x61: \033<M-C-a> 1205 URxvt.keysym.Meta-Control-0x61: \033<a>
1106 URxvt.keysym.Meta-Control-0x62: \033<M-C-b> 1206 URxvt.keysym.Meta-Control-0x62: \033<b>
1107 URxvt.keysym.Meta-Control-0x63: \033<M-C-c> 1207 URxvt.keysym.Meta-Control-0x63: \033<c>
1108 1208
1109If I<string> takes the form of C<command:STRING>, the specified B<STRING> 1209If I<string> takes the form of C<command:STRING>, the specified B<STRING>
1110is interpreted and executed as @@RXVT_NAME@@'s control sequence. For 1210is interpreted and executed as @@RXVT_NAME@@'s control sequence. For
1111example the following means "change the current locale to C<zh_CN.GBK> 1211example the following means "change the current locale to C<zh_CN.GBK>
1112when Control-Meta-c is being pressed": 1212when Control-Meta-c is being pressed":
1113 1213
1114 URxvt.keysym.M-C-c: command:\033]701;zh_CN.GBK\007 1214 URxvt.keysym.M-C-c: command:\033]701;zh_CN.GBK\007
1115 1215
1116If I<string> takes the form C<perl:STRING>, then the specified B<STRING> 1216If I<string> takes the form C<perl:STRING>, then the specified B<STRING>
1117is passed to the C<on_keyboard_command> perl handler. See the @@RXVT_NAME@@perl(3) 1217is passed to the C<on_user_command> perl handler. See the @@RXVT_NAME@@perl(3)
1118manpage. For example, the F<selection> extension (activated via 1218manpage. For example, the F<selection> extension (activated via
1119C<@@RXVT_NAME@@ -pe selection>) listens for C<selection:rot13> events: 1219C<@@RXVT_NAME@@ -pe selection>) listens for C<selection:rot13> events:
1120 1220
1121 URxvt.keysym.M-C-c: perl:selection:rot13 1221 URxvt.keysym.M-C-c: perl:selection:rot13
1122 1222
1123Due the the large number of modifier combinations, a defined key mapping 1223Due the the large number of modifier combinations, a defined key mapping
1124will match if at I<at least> the specified identifiers are being set, and 1224will match if I<at least> the specified identifiers are being set, and
1125no other key mappings with those and more bits are being defined. That 1225no other key mappings with those and more bits are being defined. That
1126means that defining a key map for C<a> will automatically provide 1226means that defining a key map for C<a> will automatically provide
1127definitions for C<Meta-a>, C<Shift-a> and so on, unless some of those are defined 1227definitions for C<Meta-a>, C<Shift-a> and so on, unless some of those are defined
1128mappings themselves. 1228mappings themselves.
1129 1229
1180all instances, while B<perl-ext> is used for specific instances. 1280all instances, while B<perl-ext> is used for specific instances.
1181 1281
1182=item B<perl-eval>: I<string> 1282=item B<perl-eval>: I<string>
1183 1283
1184Perl code to be evaluated when all extensions have been registered. See 1284Perl code to be evaluated when all extensions have been registered. See
1185the @@RXVT_NAME@@perl(3) manpage. Due to security reasons, this resource 1285the @@RXVT_NAME@@perl(3) manpage.
1186will be ignored when running setuid/setgid.
1187 1286
1188=item B<perl-lib>: I<path> 1287=item B<perl-lib>: I<path>
1189 1288
1190Colon-separated list of additional directories that hold extension 1289Colon-separated list of additional directories that hold extension
1191scripts. When looking for extensions specified by the C<perl> resource, 1290scripts. When looking for perl extensions, @@RXVT_NAME@@ will first
1192@@RXVT_NAME@@ will first look in these directories and then in 1291look in these directories, then in $HOME/.urxvt/ext and lastly in
1193F<@@RXVT_LIBDIR@@/urxvt/perl/>. Due to security reasons, this resource 1292F<@@RXVT_LIBDIR@@/urxvt/perl/>.
1194will be ignored when running setuid/setgid.
1195 1293
1196See the @@RXVT_NAME@@perl(3) manpage. 1294See the @@RXVT_NAME@@perl(3) manpage.
1197 1295
1198=item B<< selection.pattern-I<idx> >>: I<perl-regex> 1296=item B<< selection.pattern-I<idx> >>: I<perl-regex>
1199 1297
1221 1319
1222=item B<override-redirect>: I<boolean> 1320=item B<override-redirect>: I<boolean>
1223 1321
1224Compile I<frills>: Sets override-redirect for the terminal window, making 1322Compile I<frills>: Sets override-redirect for the terminal window, making
1225it almost invisible to window managers; option B<-override-redirect>. 1323it almost invisible to window managers; option B<-override-redirect>.
1324
1325=item B<iso14755:> I<boolean>
1326
1327Turn on/off ISO 14755 (default enabled).
1226 1328
1227=item B<iso14755_52:> I<boolean> 1329=item B<iso14755_52:> I<boolean>
1228 1330
1229Turn on/off ISO 14755 5.2 mode (default enabled). 1331Turn on/off ISO 14755 5.2 mode (default enabled).
1230 1332
1373B<@@RXVT_NAME@@> tries to write an entry into the I<utmp>(5) file so that 1475B<@@RXVT_NAME@@> tries to write an entry into the I<utmp>(5) file so that
1374it can be seen via the I<who(1)> command, and can accept messages. To 1476it can be seen via the I<who(1)> command, and can accept messages. To
1375allow this feature, B<@@RXVT_NAME@@> may need to be installed setuid root 1477allow this feature, B<@@RXVT_NAME@@> may need to be installed setuid root
1376on some systems or setgid to root or to some other group on others. 1478on some systems or setgid to root or to some other group on others.
1377 1479
1378=head1 COLORS AND GRAPHICS 1480=head1 COLOURS AND GRAPHICS
1379 1481
1380In addition to the default foreground and background colours, 1482In addition to the default foreground and background colours,
1381B<@@RXVT_NAME@@> can display up to 16 colours (8 ANSI colours plus 1483B<@@RXVT_NAME@@> can display up to 88/256 colours: 8 ANSI colours plus
1382high-intensity bold/blink versions of the same). Here is a list of the 1484high-intensity (potentially bold/blink) versions of the same, and 72 (or
1383colours with their names. 1485240 in 256 colour mode) colours arranged in an 4x4x4 (or 6x6x6) colour RGB
1486cube plus a 8 (24) colour greyscale ramp.
1487
1488Here is a list of the ANSI colours with their names.
1384 1489
1385=begin table 1490=begin table
1386 1491
1387 B<color0> (black) = Black 1492 B<color0> (black) = Black
1388 B<color1> (red) = Red3 1493 B<color1> (red) = Red3
1408It is also possible to specify the colour values of B<foreground>, 1513It is also possible to specify the colour values of B<foreground>,
1409B<background>, B<cursorColor>, B<cursorColor2>, B<colorBD>, B<colorUL> as 1514B<background>, B<cursorColor>, B<cursorColor2>, B<colorBD>, B<colorUL> as
1410a number 0-15, as a convenient shorthand to reference the colour name of 1515a number 0-15, as a convenient shorthand to reference the colour name of
1411color0-color15. 1516color0-color15.
1412 1517
1413In addition to the colours defined above, @@RXVT_NAME@@ offers an 1518The following text gives values for the standard 88 colour mode (and
1414additional 72 colours. The first 64 of those (with indices 16 to 79) 1519values for the 256 colour mode in parentheses).
1415consist of a 4*4*4 RGB colour cube (i.e. I<index = r * 16 + g * 4 + b +
141616>), followed by 8 additional shades of gray (with indices 80 to 87).
1417 1520
1521The RGB cube uses indices 16..79 (16..231) using the following formulas:
1522
1523 index_88 = (r * 4 + g) * 4 + b + 16 # r, g, b = 0..3
1524 index_256 = (r * 16 + g) * 16 + b + 16 # r, g, b = 0..15
1525
1526The grayscale ramp uses indices 80..87 (232..239), from 10% to 90% in 10%
1527steps (1/26 to 25/26 in 1/26 steps) - black and white are already part of
1528the RGB cube.
1529
1418Together, all those colours implement the 88 colour xterm colours. Only 1530Together, all those colours implement the 88 (256) colour xterm
1419the first 16 can be changed using resources currently, the rest can only 1531colours. Only the first 16 can be changed using resources currently, the
1420be changed via command sequences ("escape codes"). 1532rest can only be changed via command sequences ("escape codes").
1533
1534Applications are advised to use terminfo or command sequences to discover
1535number and RGB values of all colours (yes, you can query this...).
1421 1536
1422Note that B<-rv> (B<"reverseVideo: True">) simulates reverse video by 1537Note that B<-rv> (B<"reverseVideo: True">) simulates reverse video by
1423always swapping the foreground/background colours. This is in contrast to 1538always swapping the foreground/background colours. This is in contrast to
1424I<xterm>(1) where the colours are only swapped if they have not otherwise 1539I<xterm>(1) where the colours are only swapped if they have not otherwise
1425been specified. For example, 1540been specified. For example,
1426 1541
1427=over 4
1428
1429=item B<@@RXVT_NAME@@ -fg Black -bg White -rv> 1542 @@RXVT_NAME@@ -fg Black -bg White -rv
1430 1543
1431would yield White on Black, while on I<xterm>(1) it would yield Black 1544would yield White on Black, while on I<xterm>(1) it would yield Black on
1432on White. 1545White.
1433
1434=back
1435 1546
1436=head2 ALPHA CHANNEL SUPPORT 1547=head2 ALPHA CHANNEL SUPPORT
1437 1548
1438If Xft support has been compiled in and as long as Xft/Xrender/X don't get 1549If Xft support has been compiled in and as long as Xft/Xrender/X don't get
1439their act together, rxvt-unicode will support C<rgba:rrrr/gggg/bbbb/aaaa> 1550their act together, rxvt-unicode will do its own alpha channel management:
1440(recommended, but B<MUST> have 4 digits/component) colour specifications, 1551
1441in addition to the ones provided by X, where the additional A component 1552You can prefix any colour with an opaqueness percentage enclosed in
1553brackets, i.e. C<[percent]>, where C<percent> is a decimal percentage
1554(0-100) that specifies the opacity of the colour, where C<0> is completely
1555transparent and C<100> is completely opaque. For example, C<[50]red> is a
1556half-transparent red, while C<[95]#00ff00> is an almost opaque green. This
1557is the recommended format to specify transparency values, and works with
1558all ways to specify a colour.
1559
1560For complete control, rxvt-unicode also supports
1561C<rgba:rrrr/gggg/bbbb/aaaa> (exactly four hex digits/component) colour
1562specifications, where the additional C<aaaa> component specifies opacity
1442specifies opacity (alpha) values. The minimum value of C<0> is completely 1563(alpha) values. The minimum value of C<0000> is completely transparent,
1443transparent). You can also prefix any color with C<[percent]>, where 1564while C<ffff> is completely opaque). The two example colours from
1444C<percent> is a decimal percentage (0-100) that specifies the opacity of 1565earlier could also be specified as C<rgba:ff00/0000/0000/8000> and
1445the color, where C<0> is completely transparent and C<100> is completelxy 1566C<rgba:0000/ff00/0000/f332>.
1446opaque.
1447 1567
1448You probably need to specify B<"-depth 32">, too, and have the luck that 1568You probably need to specify B<"-depth 32">, too, to force a visual with
1449your X-server uses ARGB pixel layout, as X is far from just supporting 1569alpha channels, and have the luck that your X-server uses ARGB pixel
1450ARGB visuals out of the box, and rxvt-unicode just fudges around. 1570layout, as X is far from just supporting ARGB visuals out of the box, and
1571rxvt-unicode just fudges around.
1451 1572
1452For example, the following selects an almost completely transparent red 1573For example, the following selects an almost completely transparent black
1453background, and an almost opaque pink foreground: 1574background, and an almost opaque pink foreground:
1454 1575
1455 @@RXVT_NAME@@ -depth 32 -bg rgba:0000/0000/0000/aaaa -fg "[80]pink" 1576 @@RXVT_NAME@@ -depth 32 -bg rgba:0000/0000/0000/4444 -fg "[80]pink"
1456 1577
1457I<Please note that transparency of any kind if completely unsupported by 1578When not using a background image, then the interpretation of the
1458the author. Don't bug him with installation questions!> 1579alpha channel is up to your compositing manager (most interpret it as
1580transparency of course).
1581
1582When using a background pixmap or pseudo-transparency, then the background
1583colour will always behave as if it were completely transparent (so the
1584background image shows instead), regardless of how it was specified, while
1585other colours will either be transparent as specified (the background
1586image will show through) on servers supporting the RENDER extension, or
1587fully opaque on servers not supporting the RENDER EXTENSION.
1588
1589Please note that due to bugs in Xft, specifying alpha values might result
1590in garbage being displayed when the X-server does not support the RENDER
1591extension.
1459 1592
1460=head1 ENVIRONMENT 1593=head1 ENVIRONMENT
1461 1594
1462B<@@RXVT_NAME@@> sets and/or uses the following environment variables: 1595B<@@RXVT_NAME@@> sets and/or uses the following environment variables:
1463 1596
1469resources or on the command line. 1602resources or on the command line.
1470 1603
1471=item B<COLORTERM> 1604=item B<COLORTERM>
1472 1605
1473Either C<rxvt>, C<rxvt-xpm>, depending on whether @@RXVT_NAME@@ was 1606Either C<rxvt>, C<rxvt-xpm>, depending on whether @@RXVT_NAME@@ was
1474compiled with XPM support, and optionally with the added extension 1607compiled with background image support, and optionally with the added
1475C<-mono> to indicate that rxvt-unicode runs on a monochrome screen. 1608extension C<-mono> to indicate that rxvt-unicode runs on a monochrome
1609screen.
1476 1610
1477=item B<COLORFGBG> 1611=item B<COLORFGBG>
1478 1612
1479Set to a string of the form C<fg;bg> or C<fg;xpm;bg>, where C<fg> is 1613Set to a string of the form C<fg;bg> or C<fg;xpm;bg>, where C<fg> is
1480the colour code used as default foreground/text colour (or the string 1614the colour code used as default foreground/text colour (or the string
1481C<default> to indicate that the default-colour escape sequence is to be 1615C<default> to indicate that the default-colour escape sequence is to be
1482used), C<bg> is the colour code used as default background colour (or the 1616used), C<bg> is the colour code used as default background colour (or the
1483string C<default>), and C<xpm> is the string C<default> if @@RXVT_NAME@@ 1617string C<default>), and C<xpm> is the string C<default> if @@RXVT_NAME@@
1484was compiled with XPM support. Libraries like C<ncurses> and C<slang> can 1618was compiled with background image support. Libraries like C<ncurses>
1485(and do) use this information to optimize screen output. 1619and C<slang> can (and do) use this information to optimize screen output.
1486 1620
1487=item B<WINDOWID> 1621=item B<WINDOWID>
1488 1622
1489Set to the (decimal) X Window ID of the @@RXVT_NAME@@ window (the toplevel 1623Set to the (decimal) X Window ID of the @@RXVT_NAME@@ window (the toplevel
1490window, which usually has subwindows for the scrollbar, the terminal 1624window, which usually has subwindows for the scrollbar, the terminal
1496C<--with-terminfo=PATH>. 1630C<--with-terminfo=PATH>.
1497 1631
1498=item B<DISPLAY> 1632=item B<DISPLAY>
1499 1633
1500Used by @@RXVT_NAME@@ to connect to the display and set to the correct 1634Used by @@RXVT_NAME@@ to connect to the display and set to the correct
1501display in its child processes. 1635display in its child processes if C<-display> isn't used to override. It
1636defaults to C<:0> if it doesn't exist.
1502 1637
1503=item B<SHELL> 1638=item B<SHELL>
1504 1639
1505The shell to be used for command execution, defaults to C</bin/sh>. 1640The shell to be used for command execution, defaults to C</bin/sh>.
1506 1641
1507=item B<RXVT_SOCKET> 1642=item B<RXVT_SOCKET>
1508 1643
1509The unix domain socket path used by @@RXVT_NAME@@c(1) and 1644The unix domain socket path used by @@RXVT_NAME@@c(1) and
1510@@RXVT_NAME@@d(1). 1645@@RXVT_NAME@@d(1).
1511 1646
1512Default F<<< $HOME/.rxvt-unicode-I<< <nodename >> >>>. 1647Default F<<< $HOME/.urxvt/urxvtd-I<< <nodename> >> >>>.
1513 1648
1514=item B<HOME> 1649=item B<HOME>
1515 1650
1516Used to locate the default directory for the unix domain socket for 1651Used to locate the default directory for the unix domain socket for
1517daemon communications and to locate various resource files (such as 1652daemon communications and to locate various resource files (such as
1518C<.Xdefaults>) 1653C<.Xdefaults>)
1519 1654
1520=item B<XAPPLRESDIR> 1655=item B<XAPPLRESDIR>
1521 1656
1522Directory where various X resource files are being located. 1657Directory where application-specific X resource files are located.
1523 1658
1524=item B<XENVIRONMENT> 1659=item B<XENVIRONMENT>
1525 1660
1526If set and accessible, gives the name of a X resource file to be loaded by 1661If set and accessible, gives the name of a X resource file to be loaded by
1527@@RXVT_NAME@@. 1662@@RXVT_NAME@@.
1532 1667
1533=over 4 1668=over 4
1534 1669
1535=item B</usr/lib/X11/rgb.txt> 1670=item B</usr/lib/X11/rgb.txt>
1536 1671
1537Color names. 1672Colour names.
1538 1673
1539=back 1674=back
1540 1675
1541=head1 SEE ALSO 1676=head1 SEE ALSO
1542 1677
1581Project Coordinator (changes.txt 2.21a to 2.4.5) 1716Project Coordinator (changes.txt 2.21a to 2.4.5)
1582 1717
1583=item Geoff Wing L<< <gcw@pobox.com> >> 1718=item Geoff Wing L<< <gcw@pobox.com> >>
1584 1719
1585Rewrote screen display and text selection routines. 1720Rewrote screen display and text selection routines.
1586 1721
1587Project Coordinator (changes.txt 2.4.6 - rxvt-unicode) 1722Project Coordinator (changes.txt 2.4.6 - rxvt-unicode)
1588 1723
1589=item Marc Alexander Lehmann L<< <rxvt-unicode@schmorp.de> >> 1724=item Marc Alexander Lehmann L<< <rxvt-unicode@schmorp.de> >>
1590 1725
1591Forked rxvt-unicode, unicode support, rewrote almost all the code, perl 1726Forked rxvt-unicode, unicode support, rewrote almost all the code, perl
1593 1728
1594Project Coordinator (Changes 1.0 -) 1729Project Coordinator (Changes 1.0 -)
1595 1730
1596=item Emanuele Giaquinta L<< <e.giaquinta@glauco.it> >> 1731=item Emanuele Giaquinta L<< <e.giaquinta@glauco.it> >>
1597 1732
1598Pty/tty/utmp/wtmp rewrite, lots of random hacking and bugfixing. 1733pty/utmp code rewrite, image code improvements, many random hacks and bugfixes.
1599 1734
1600=back 1735=back
1601 1736

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