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Revision 1.138 by sasha, Thu Sep 20 15:56:41 2007 UTC vs.
Revision 1.212 by sf-exg, Sun Jan 1 14:31:28 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
30like mongolian or scripts requiring extremely complex combining rules, 33like mongolian or scripts requiring extremely complex combining rules,
31like tibetan or devanagari. 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 address all transparency related issues to Sasha Vasko at 131B<-ip> is still accepted as an obsolete alias but will be removed in
125sasha@aftercode.net. Read the FAQ (man 7 @@RXVT_NAME@@)!> 132future versions.
126 133
127=item B<-fade> I<number> 134=item B<-fade> I<number>
128 135
129Fade 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
130fade a little only, 100 completely replaces all colours by the fade 137fade a little only, 100 completely replaces all colours by the fade
135Fade 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
136is opaque black. resource B<fadeColor>. 143is opaque black. resource B<fadeColor>.
137 144
138=item B<-tint> I<colour> 145=item B<-tint> I<colour>
139 146
140Tint the transparent background pixmap with the given colour when 147Tint the transparent background with the given colour;
141transparency is enabled with B<-tr> or B<-ip>. This only works for 148resource I<tintColor>.
142non-tiled backgrounds, currently. See also the B<-sh> option that can be
143used to brighten or darken the image in addition to tinting it.
144Please note that certain tint colours can be applied on the server-side,
145thus yielding performance gain of two orders of magnitude. These colours are:
146blue, red, green, cyan, magenta, yellow, and those close to them; resource
147I<tintColor>. Example:
148
149 @@RXVT_NAME@@ -tr -tint blue -sh 40
150 149
151=item B<-sh> I<number> 150=item B<-sh> I<number>
152 151
153Darken (0 .. 100) or lighten (-1 .. -100) the transparent 152Darken (0 .. 99) or lighten (101 .. 200) the transparent background.
154background image in addition to (or instead of) tinting it; 153A value of 100 means no shading; resource I<shading>.
155resource I<shading>.
156 154
157=item B<-blt> I<string> 155=item B<-blt> I<string>
158 156
159Specify background blending type. If background pixmap is specified 157Specify background blending type. If background pixmap is specified
160at the same time as transparency - such pixmap will be blended over 158at the same time as transparency - such pixmap will be blended over
161transparency image, using method specified. Supported values are : 159the transparent background, using the method specified. Supported values are:
162B<add>, B<alphablend>, B<allanon> - color values averaging, B<colorize>, 160B<add>, B<alphablend>, B<allanon> - colour values averaging, B<colorize>,
163B<darken>, B<diff>, B<dissipate>, B<hue>, B<lighten>, B<overlay>, 161B<darken>, B<diff>, B<dissipate>, B<hue>, B<lighten>, B<overlay>,
164B<saturate>, B<screen>, B<sub>, B<tint>, B<value>. The default is 162B<saturate>, B<screen>, B<sub>, B<tint>, B<value>. The default is
165alpha-blending; resource I<blendType>. 163alpha-blending. Compile I<afterimage>; resource I<blendType>.
166 164
167=item B<-blr> I<HxV> 165=item B<-blr> I<HxV>
168 166
169Apply Gaussian Blur with the specified radii to the transparent 167Apply Gaussian Blur with the specified radii to the transparent
170background image. If single number is specified - both vertical and 168background. If a single number is specified, the vertical and
171horizontal radii are considered to be the same. Setting one of the 169horizontal radii are considered to be the same. Setting one of the
172radii to 1 and another to a large number creates interesting effects 170radii to 1 and the other to a large number creates interesting effects
173on some backgrounds. Maximum radius value is 128; resource I<blurRadius>. 171on some backgrounds. The maximum radius value is 128. An horizontal or
172vertical radius of 0 disables blurring;
173resource I<blurRadius>.
174
175=item B<-icon> I<file>
176
177Compile I<afterimage> or I<pixbuf>: Use the specified image as application icon. This
178is used by many window managers, taskbars and pagers to represent the
179application window; resource I<iconFile>.
174 180
175=item B<-bg> I<colour> 181=item B<-bg> I<colour>
176 182
177Window background colour; resource B<background>. 183Window background colour; resource B<background>.
178 184
179=item B<-fg> I<colour> 185=item B<-fg> I<colour>
180 186
181Window foreground colour; resource B<foreground>. 187Window foreground colour; resource B<foreground>.
182 188
183=item B<-pixmap> I<file[;geom]> 189=item B<-pixmap> I<file[;oplist]>
184 190
185Compile I<afterimage>: Specify image file for the background and also 191Compile I<afterimage> or I<pixbuf>: Specify image file for the background and also
186optionally specify its scaling with a geometry string. Note you may need to 192optionally specify a list of operations to modify it. Note you may need to
187add quotes to avoid special shell interpretation of the C<;> in the 193add quotes to avoid special shell interpretation of the C<;> in the
188command-line; for more details see resource B<backgroundPixmap>. 194command-line; for more details see resource B<backgroundPixmap>.
189 195
190=item B<-cr> I<colour> 196=item B<-cr> I<colour>
191 197
238italic> >> characters are to be printed. See resource B<boldItalicFont> 244italic> >> characters are to be printed. See resource B<boldItalicFont>
239for details. 245for details.
240 246
241=item B<-is>|B<+is> 247=item B<-is>|B<+is>
242 248
243Compile I<font-styles>: Bold/Italic font styles imply high intensity 249Compile I<font-styles>: Bold/Blink font styles imply high intensity
244foreground/background (default). See resource B<intensityStyles> for 250foreground/background (default). See resource B<intensityStyles> for
245details. 251details.
246 252
247=item B<-name> I<name> 253=item B<-name> I<name>
248 254
266 272
267=item B<-sb>|B<+sb> 273=item B<-sb>|B<+sb>
268 274
269Turn on/off scrollbar; resource B<scrollBar>. 275Turn on/off scrollbar; resource B<scrollBar>.
270 276
277=item B<-sr>|B<+sr>
278
279Put scrollbar on right/left; resource B<scrollBar_right>.
280
281=item B<-st>|B<+st>
282
283Display rxvt (non XTerm/NeXT) scrollbar without/with a trough;
284resource B<scrollBar_floating>.
285
271=item B<-si>|B<+si> 286=item B<-si>|B<+si>
272 287
273Turn on/off scroll-to-bottom on TTY output inhibit; resource 288Turn on/off scroll-to-bottom on TTY output inhibit; resource
274B<scrollTtyOutput> has opposite effect. 289B<scrollTtyOutput> has opposite effect.
275 290
281=item B<-sw>|B<+sw> 296=item B<-sw>|B<+sw>
282 297
283Turn on/off scrolling with the scrollback buffer as new lines appear. 298Turn on/off scrolling with the scrollback buffer as new lines appear.
284This only takes effect if B<-si> is also given; resource 299This only takes effect if B<-si> is also given; resource
285B<scrollWithBuffer>. 300B<scrollWithBuffer>.
286
287=item B<-sr>|B<+sr>
288
289Put scrollbar on right/left; resource B<scrollBar_right>.
290
291=item B<-st>|B<+st>
292
293Display rxvt (non XTerm/NeXT) scrollbar without/with a trough;
294resource B<scrollBar_floating>.
295 301
296=item B<-ptab>|B<+ptab> 302=item B<-ptab>|B<+ptab>
297 303
298If enabled (default), "Horizontal Tab" characters are being stored as 304If enabled (default), "Horizontal Tab" characters are being stored as
299actual wide characters in the screen buffer, which makes it possible to 305actual wide characters in the screen buffer, which makes it possible to
303 309
304=item B<-bc>|B<+bc> 310=item B<-bc>|B<+bc>
305 311
306Blink the cursor; resource B<cursorBlink>. 312Blink the cursor; resource B<cursorBlink>.
307 313
314=item B<-uc>|B<+uc>
315
316Make the cursor underlined; resource B<cursorUnderline>.
317
308=item B<-iconic> 318=item B<-iconic>
309 319
310Start iconified, if the window manager supports that option. 320Start iconified, if the window manager supports that option.
311Alternative form is B<-ic>. 321Alternative form is B<-ic>.
312 322
328 338
329=item B<-bl> 339=item B<-bl>
330 340
331Compile I<frills>: Set MWM hints to request a borderless window, i.e. 341Compile I<frills>: Set MWM hints to request a borderless window, i.e.
332if honoured by the WM, the rxvt-unicode window will not have window 342if honoured by the WM, the rxvt-unicode window will not have window
333decorations; resource B<borderLess>. 343decorations; resource B<borderLess>. If the window manager does not
344support MWM hints (e.g. kwin), enables override-redirect mode.
334 345
335=item B<-override-redirect> 346=item B<-override-redirect>
336 347
337Compile I<frills>: Sets override-redirect on the window; resource 348Compile I<frills>: Sets override-redirect on the window; resource
338B<override-redirect>. 349B<override-redirect>.
347=item B<-lsp> I<number> 358=item B<-lsp> I<number>
348 359
349Compile I<frills>: Lines (pixel height) to insert between each row of 360Compile I<frills>: Lines (pixel height) to insert between each row of
350the display. Useful to work around font rendering problems; resource 361the display. Useful to work around font rendering problems; resource
351B<lineSpace>. 362B<lineSpace>.
363
364=item B<-letsp> I<number>
365
366Compile I<frills>: Amount to adjust the computed character width by
367to control overall letter spacing. Negative values will tighten up the
368letter spacing, positive values will space letters out more. Useful to
369work around odd font metrics; resource B<letterSpace>.
352 370
353=item B<-tn> I<termname> 371=item B<-tn> I<termname>
354 372
355This option specifies the name of the terminal type to be set in the 373This option specifies the name of the terminal type to be set in the
356B<TERM> environment variable. This terminal type must exist in the 374B<TERM> environment variable. This terminal type must exist in the
411 429
412=item B<-tcw> 430=item B<-tcw>
413 431
414Change the meaning of triple-click selection with the left mouse 432Change the meaning of triple-click selection with the left mouse
415button. Only effective when the original (non-perl) selection code is 433button. Only effective when the original (non-perl) selection code is
416in-use. Instead of selecting a full line it will extend the selection the 434in-use. Instead of selecting a full line it will extend the selection to
417end of the logical line only. resource B<tripleclickwords>. 435the end of the logical line only. resource B<tripleclickwords>.
418 436
419=item B<-insecure> 437=item B<-insecure>
420 438
421Enable "insecure" mode, which currently enables most of the escape 439Enable "insecure" mode, which currently enables most of the escape
422sequences that echo strings. See the resource B<insecure> for more 440sequences that echo strings. See the resource B<insecure> for more
442 460
443Turn on/off hold window after exit support. If enabled, @@RXVT_NAME@@ 461Turn on/off hold window after exit support. If enabled, @@RXVT_NAME@@
444will not immediately destroy its window when the program executed within 462will not immediately destroy its window when the program executed within
445it exits. Instead, it will wait till it is being killed or closed by the 463it exits. Instead, it will wait till it is being killed or closed by the
446user; resource B<hold>. 464user; resource B<hold>.
465
466=item B<-cd> I<path>
467
468Sets the working directory for the shell (or the command specified via
469B<-e>). The I<path> must be an absolute path and it must exist for
470@@RXVT_NAME@@ to start; resource B<chdir>.
471
472=item B<-xrm> I<string>
473
474Works like the X Toolkit option of the same name, by adding the I<string>
475as if it were specified in a resource file. Resource values specified this
476way take precedence over all other resource specifications.
477
478Note that you need to use the I<same> syntax as in the .Xdefaults file,
479e.g. C<*.background: black>. Also note that all @@RXVT_NAME@@-specific
480options can be specified as long-options on the commandline, so use
481of B<-xrm> is mostly limited to cases where you want to specify other
482resources (e.g. for input methods) or for compatibility with other
483programs.
447 484
448=item B<-keysym.>I<sym> I<string> 485=item B<-keysym.>I<sym> I<string>
449 486
450Remap a key symbol. See resource B<keysym>. 487Remap a key symbol. See resource B<keysym>.
451 488
486If this switch is given, @@RXVT_NAME@@ will not create any utmp/wtmp 523If this switch is given, @@RXVT_NAME@@ will not create any utmp/wtmp
487entries and will not tinker with pty/tty permissions - you have to do that 524entries and will not tinker with pty/tty permissions - you have to do that
488yourself if you want that. 525yourself if you want that.
489 526
490As an extremely special case, specifying C<-1> will completely suppress 527As an extremely special case, specifying C<-1> will completely suppress
491pty/tty operations. 528pty/tty operations, which is probably only useful in conjunction with some
529perl extension that manages the terminal.
492 530
493Here is a example in perl that illustrates how this option can be used (a 531Here is a example in perl that illustrates how this option can be used (a
494longer example is in F<doc/pty-fd>): 532longer example is in F<doc/pty-fd>):
495 533
496 use IO::Pty; 534 use IO::Pty;
510Comma-separated list of perl extension scripts to use (or not to use) in 548Comma-separated list of perl extension scripts to use (or not to use) in
511this terminal instance. See resource B<perl-ext> for details. 549this terminal instance. See resource B<perl-ext> for details.
512 550
513=back 551=back
514 552
515=head1 RESOURCES (available also as long-options) 553=head1 RESOURCES
516 554
517Note: `@@RXVT_NAME@@ --help' gives a list of all resources (long 555Note: `@@RXVT_NAME@@ --help' gives a list of all resources (long
518options) compiled into your version. 556options) compiled into your version. All resources are also available as
557long-options.
519 558
520You can set and change the resources using X11 tools like B<xrdb>. Many 559You can set and change the resources using X11 tools like B<xrdb>. Many
521distribution do also load settings from the B<~/.Xresources> file when X 560distribution do also load settings from the B<~/.Xresources> file when X
522starts. @@RXVT_NAME@@ will consult the following files/resources in order, 561starts. @@RXVT_NAME@@ will consult the following files/resources in order,
523with later settings overwriting earlier ones: 562with later settings overwriting earlier ones:
524 563
525 1. system-wide app-defaults file, either locale-dependent OR global
526 2. app-defaults file in $XAPPLRESDIR 564 1. app-defaults file in $XAPPLRESDIR
565 2. $HOME/.Xdefaults
527 3. RESOURCE_MANAGER property on root-window OR $HOME/.Xdefaults 566 3. RESOURCE_MANAGER property on root-window of screen 0
528 4. SCREEN_RESOURCES for the current screen 567 4. SCREEN_RESOURCES property on root-window of the current screen
529 5. $XENVIRONMENT file OR $HOME/.Xdefaults-<nodename> 568 5. $XENVIRONMENT file OR $HOME/.Xdefaults-<nodename>
569 6. resources specified via -xrm on the commandline
530 570
531Note that when reading X resources, B<@@RXVT_NAME@@> recognizes two class 571Note that when reading X resources, B<@@RXVT_NAME@@> recognizes two class
532names: B<Rxvt> and B<URxvt>. The class name B<Rxvt> allows resources 572names: B<Rxvt> and B<URxvt>. The class name B<Rxvt> allows resources
533common to both B<@@RXVT_NAME@@> and the original I<rxvt> to be easily 573common to both B<@@RXVT_NAME@@> and the original I<rxvt> to be easily
534configured, while the class name B<URxvt> allows resources unique to 574configured, while the class name B<URxvt> allows resources unique to
544=item B<depth:> I<bitdepth> 584=item B<depth:> I<bitdepth>
545 585
546Compile I<xft>: Attempt to find a visual with the given bit depth; 586Compile I<xft>: Attempt to find a visual with the given bit depth;
547option B<-depth>. 587option B<-depth>.
548 588
589=item B<buffered:> I<boolean>
590
591Compile I<xft>: Turn on/off double-buffering for xft (default enabled).
592On some card/driver combination enabling it slightly decreases
593performance, on most it greatly helps it. The slowdown is small, so it
594should normally be enabled.
595
549=item B<geometry:> I<geom> 596=item B<geometry:> I<geom>
550 597
551Create the window with the specified X window geometry [default 80x24]; 598Create the window with the specified X window geometry [default 80x24];
552option B<-geometry>. 599option B<-geometry>.
553 600
566Use the specified colour for the colour value I<n>, where 0-7 613Use the specified colour for the colour value I<n>, where 0-7
567corresponds to low-intensity (normal) colours and 8-15 corresponds to 614corresponds to low-intensity (normal) colours and 8-15 corresponds to
568high-intensity (bold = bright foreground, blink = bright background) 615high-intensity (bold = bright foreground, blink = bright background)
569colours. The canonical names are as follows: 0=black, 1=red, 2=green, 616colours. The canonical names are as follows: 0=black, 1=red, 2=green,
5703=yellow, 4=blue, 5=magenta, 6=cyan, 7=white, but the actual colour 6173=yellow, 4=blue, 5=magenta, 6=cyan, 7=white, but the actual colour
571names used are listed in the B<COLORS AND GRAPHICS> section. 618names used are listed in the B<COLOURS AND GRAPHICS> section.
572 619
573Colours higher than 15 cannot be set using resources (yet), but can be 620Colours higher than 15 cannot be set using resources (yet), but can be
574changed using an escape command (see @@RXVT_NAME@@(7)). 621changed using an escape command (see @@RXVT_NAME@@(7)).
575 622
576Colours 16-79 form a standard 4x4x4 colour cube (the same as xterm with 623Colours 16-79 form a standard 4x4x4 colour cube (the same as xterm with
587=item B<colorUL:> I<colour> 634=item B<colorUL:> I<colour>
588 635
589Use the specified colour to display underlined characters when the 636Use the specified colour to display underlined characters when the
590foreground colour is the default. 637foreground colour is the default.
591 638
592=item B<colorRV:> I<colour>
593
594Use the specified colour as the background for reverse video characters
595when OPTION_HC is disabled (--disable-frills).
596
597=item B<underlineColor:> I<colour> 639=item B<underlineColor:> I<colour>
598 640
599If set, use the specified colour as the colour for the underline 641If set, use the specified colour as the colour for the underline
600itself. If unset, use the foreground colour. 642itself. If unset, use the foreground colour.
643
644=item B<highlightColor:> I<colour>
645
646If set, use the specified colour as the background for highlighted
647characters. If unset, use reverse video.
648
649=item B<highlightTextColor:> I<colour>
650
651If set and highlightColor is set, use the specified colour as the
652foreground for highlighted characters.
601 653
602=item B<cursorColor:> I<colour> 654=item B<cursorColor:> I<colour>
603 655
604Use the specified colour for the cursor. The default is to use the 656Use the specified colour for the cursor. The default is to use the
605foreground colour; option B<-cr>. 657foreground colour; option B<-cr>.
612 664
613=item B<reverseVideo:> I<boolean> 665=item B<reverseVideo:> I<boolean>
614 666
615B<True>: simulate reverse video by foreground and background colours; 667B<True>: simulate reverse video by foreground and background colours;
616option B<-rv>. B<False>: regular screen colours [default]; option 668option B<-rv>. B<False>: regular screen colours [default]; option
617B<+rv>. See note in B<COLORS AND GRAPHICS> section. 669B<+rv>. See note in B<COLOURS AND GRAPHICS> section.
618 670
619=item B<jumpScroll:> I<boolean> 671=item B<jumpScroll:> I<boolean>
620 672
621B<True>: specify that jump scrolling should be used. When receiving lots 673B<True>: specify that jump scrolling should be used. When receiving lots
622of lines, @@RXVT_NAME@@ will only scroll once a whole screen height of lines 674of lines, @@RXVT_NAME@@ will only scroll once a whole screen height of lines
636 688
637B<False>: specify that everything is to be displayed, even 689B<False>: specify that everything is to be displayed, even
638if the refresh is too fast for the human eye to read anything (or the 690if the refresh is too fast for the human eye to read anything (or the
639monitor to display anything); option B<+ss>. 691monitor to display anything); option B<+ss>.
640 692
641=item B<inheritPixmap:> I<boolean> 693=item B<transparent:> I<boolean>
642 694
643B<True>: make the background inherit the parent windows' pixmap, giving 695Turn on/off pseudo-transparency by using the root pixmap as background.
644artificial transparency. B<False>: do not inherit the parent windows'
645pixmap.
646 696
647I<Please note that transparency of any kind if completely unsupported by 697B<inheritPixmap> is still accepted as an obsolete alias but will be removed in
648the author. Don't bug him with installation questions!> 698future versions.
649 699
650=item B<fading:> I<number> 700=item B<fading:> I<number>
651 701
652Fade the text by the given percentage when focus is lost; option B<-fade>. 702Fade the text by the given percentage when focus is lost; option B<-fade>.
653 703
656Fade to this colour, when fading is used (see B<fading:>). The default 706Fade to this colour, when fading is used (see B<fading:>). The default
657colour is black; option B<-fadecolor>. 707colour is black; option B<-fadecolor>.
658 708
659=item B<tintColor:> I<colour> 709=item B<tintColor:> I<colour>
660 710
661Tint the transparent background pixmap with the given colour; option 711Tint the transparent background with the given colour. If the RENDER
662B<-tint>. 712extension is not available only black, red, green, yellow, blue,
713magenta, cyan and white tints can be performed server-side. Note that
714a black tint yields a completely black image while a white tint yields
715the image unchanged; option B<-tint>.
663 716
664=item B<shading:> I<number> 717=item B<shading:> I<number>
665 718
666Darken (0 .. 100) or lighten (-1 .. -100) the transparent background image 719Darken (0 .. 99) or lighten (101 .. 200) the transparent background.
667in addition to tinting it; option B<-sh>. 720A value of 100 means no shading; option B<-sh>.
668 721
669=item B<blendType:> I<string> 722=item B<blendType:> I<string>
670 723
671Specify background blending type; option B<-blt>. 724Specify background blending type; option B<-blt>.
672 725
673=item B<blurRadius:> I<number> 726=item B<blurRadius:> I<number>
674 727
675Apply Gaussian Blurr with the specified radius to the transparent 728Apply gaussian blur with the specified radius to the transparent
676background image; option B<-blr>. 729background; option B<-blr>.
730
731=item B<iconFile:> I<file>
732
733Set the application icon pixmap; option B<-icon>.
677 734
678=item B<scrollColor:> I<colour> 735=item B<scrollColor:> I<colour>
679 736
680Use the specified colour for the scrollbar [default #B2B2B2]. 737Use the specified colour for the scrollbar [default #B2B2B2].
681 738
687=item B<borderColor:> I<colour> 744=item B<borderColor:> I<colour>
688 745
689The colour of the border around the text area and between the scrollbar 746The colour of the border around the text area and between the scrollbar
690and the text. 747and the text.
691 748
692=item B<backgroundPixmap:> I<file[;geom]> 749=item B<backgroundPixmap:> I<file[;oplist]>
693 750
694Use the specified image file for the background and also optionally 751Use the specified image file for the background and also
695specify its scaling with a geometry string B<WxH+X+Y>, 752optionally specify a colon separated list of operations to modify it.
696in which B<"W" / "H"> specify the horizontal/vertical scale (percent), 753Supported operations are:
754
755=over 4
756
757=item B<WxH+X+Y>
758
759sets scale and position. B<"W" / "H"> specify the horizontal/vertical
697and B<"X" / "Y"> locate the image centre (percent). 760scale (percent), and B<"X" / "Y"> locate the image centre (percent). A
698A scale of 0 displays the image with tiling. A scale of 1 displays the 761scale of 0 disables scaling. The maximum permitted scale is 1000.
699image without any scaling. A scale of 2 to 9 specifies an integer 762
700number of images in that direction. No image will be magnified beyond 763=item B<op=tile>
70110 times its original size. The maximum permitted scale is 1000. 764
702Special string of B<"auto"> used as a geometry will cause image to be 765enables tiling
703automatically scaled to match window size. 766
767=item B<op=keep-aspect>
768
769maintain the image aspect ratio when scaling
770
771=item B<op=root-align>
772
773use the position of the terminal window relative to the root window as
774the image offset, simulating a root window background
775
776=back
777
778The default scale and position setting is C<100x100+50+50>.
779Alternatively, a predefined set of templates can be used to achieve
780the most common setups:
781
782=over 4
783
784=item B<style=tiled>
785
786the image is tiled with no scaling. Equivalent to 0x0+0+0:op=tile
787
788=item B<style=aspect-stretched>
789
790the image is scaled to fill the whole window maintaining the aspect
791ratio and centered. Equivalent to 100x100+50+50:op=keep-aspect
792
793=item B<style=stretched>
794
795the image is scaled to fill the whole window. Equivalent to 100x100
796
797=item B<style=centered>
798
799the image is centered with no scaling. Equivalent to 0x0+50+50
800
801=item B<style=root-tiled>
802
803the image is tiled with no scaling and using 'root' positioning.
804Equivalent to 0x0:op=tile:op=root-align
805
806=back
807
808If multiple templates are specified the last one wins. Note that a
809template overrides all the scale, position and operations settings.
810
704If used in conjunction with B<-tr> option - specified pixmap will be 811If used in conjunction with B<-tr> option, the specified pixmap will be
705blended over transparency image using either alpha-blending, or any 812blended over the transparent background using alpha-blending. If I<afterimage>
706other blending type, specified with B<-blt "type"> option. 813support has been compiled in it is possible to choose other blending
707[default 0x0+50+50] 814types with B<-blt "type"> option.
708 815
709=item B<path:> I<path> 816=item B<path:> I<path>
710 817
711Specify the colon-delimited search path for finding background image files. 818Specify the colon-delimited search path for finding background image files.
712 819
739it is named first) and thus defines the character cell grid to be 9 pixels 846it is named first) and thus defines the character cell grid to be 9 pixels
740wide and 15 pixels high. 847wide and 15 pixels high.
741 848
742The second font is just used to add additional unicode characters not in 849The second font is just used to add additional unicode characters not in
743the base font, likewise the third, which is unfortunately non-bold, but 850the base font, likewise the third, which is unfortunately non-bold, but
744the bold version of the font does contain less characters, so this is a 851the bold version of the font does contain fewer characters, so this is a
745useful supplement. 852useful supplement.
746 853
747The third font is an Xft font with aliasing turned off, and the characters 854The third font is an Xft font with aliasing turned off, and the characters
748are limited to the B<JIS 0208> codeset (i.e. japanese kanji). The font 855are limited to the B<JIS 0208> codeset (i.e. japanese kanji). The font
749contains other characters, but we are not interested in them. 856contains other characters, but we are not interested in them.
773text font will being used for the given style. 880text font will being used for the given style.
774 881
775=item B<intensityStyles:> I<boolean> 882=item B<intensityStyles:> I<boolean>
776 883
777When font styles are not enabled, or this option is enabled (B<True>, 884When font styles are not enabled, or this option is enabled (B<True>,
778option B<-is>, the default), bold and italic font styles imply high 885option B<-is>, the default), bold/blink font styles imply high
779intensity foreground/background colours. Disabling this option (B<False>, 886intensity foreground/background colours. Disabling this option (B<False>,
780option B<+is>) disables this behaviour, the high intensity colours are not 887option B<+is>) disables this behaviour, the high intensity colours are not
781reachable. 888reachable.
782 889
783=item B<selectstyle:> I<mode>
784
785Set mouse selection style to B<old> which is 2.20, B<oldword> which
786is xterm style with 2.20 old word selection, or anything else which
787gives xterm style selection. Only effective when the original (non-perl)
788selection code is in use.
789
790=item B<scrollstyle:> I<mode>
791
792Set scrollbar style to B<rxvt>, B<plain>, B<next> or B<xterm>. B<plain> is
793the author's favourite.
794
795=item B<title:> I<string> 890=item B<title:> I<string>
796 891
797Set window title string, the default title is the command-line 892Set window title string, the default title is the command-line
798specified after the B<-e> option, if any, otherwise the application 893specified after the B<-e> option, if any, otherwise the application
799name; option B<-title>. 894name; option B<-title>.
812=item B<urgentOnBell:> I<boolean> 907=item B<urgentOnBell:> I<boolean>
813 908
814B<True>: set the urgency hint for the wm on receipt of a bell character. 909B<True>: set the urgency hint for the wm on receipt of a bell character.
815B<False>: do not set the urgency hint [default]. 910B<False>: do not set the urgency hint [default].
816 911
912@@RXVT_NAME@@ resets the urgency hint on every focus change.
913
817=item B<visualBell:> I<boolean> 914=item B<visualBell:> I<boolean>
818 915
819B<True>: use visual bell on receipt of a bell character; option B<-vb>. 916B<True>: use visual bell on receipt of a bell character; option B<-vb>.
820B<False>: no visual bell [default]; option B<+vb>. 917B<False>: no visual bell [default]; option B<+vb>.
821 918
844 URxvt.print-pipe: cat > $(TMPDIR=$HOME mktemp urxvt.XXXXXX) 941 URxvt.print-pipe: cat > $(TMPDIR=$HOME mktemp urxvt.XXXXXX)
845 942
846This creates a new file in your home directory with the screen contents 943This creates a new file in your home directory with the screen contents
847every time you hit C<Print>. 944every time you hit C<Print>.
848 945
946=item B<scrollstyle:> I<mode>
947
948Set scrollbar style to B<rxvt>, B<plain>, B<next> or B<xterm>. B<plain> is
949the author's favourite.
950
951=item B<thickness:> I<number>
952
953Set the scrollbar width in pixels.
954
849=item B<scrollBar:> I<boolean> 955=item B<scrollBar:> I<boolean>
850 956
851B<True>: enable the scrollbar [default]; option B<-sb>. B<False>: 957B<True>: enable the scrollbar [default]; option B<-sb>. B<False>:
852disable the scrollbar; option B<+sb>. 958disable the scrollbar; option B<+sb>.
853 959
872B<False>: do not scroll to bottom when tty receives output; option 978B<False>: do not scroll to bottom when tty receives output; option
873B<+si>. 979B<+si>.
874 980
875=item B<scrollWithBuffer:> I<boolean> 981=item B<scrollWithBuffer:> I<boolean>
876 982
877B<True>: scroll with scrollback buffer when tty receives new lines (and 983B<True>: scroll with scrollback buffer when tty receives new lines (i.e.
878B<scrollTtyOutput> is False); option B<-sw>. B<False>: do not scroll 984try to show the same lines) and B<scrollTtyOutput> is False; option
879with scrollback buffer when tty receives new lines; option B<+sw>. 985B<-sw>. B<False>: do not scroll with scrollback buffer when tty receives
986new lines; option B<+sw>.
880 987
881=item B<scrollTtyKeypress:> I<boolean> 988=item B<scrollTtyKeypress:> I<boolean>
882 989
883B<True>: scroll to bottom when a non-special key is pressed. Special keys 990B<True>: scroll to bottom when a non-special key is pressed. Special keys
884are those which are intercepted by rxvt-unicode for special handling and 991are those which are intercepted by rxvt-unicode for special handling and
940=item B<cursorBlink:> I<boolean> 1047=item B<cursorBlink:> I<boolean>
941 1048
942B<True>: blink the cursor. B<False>: do not blink the cursor [default]; 1049B<True>: blink the cursor. B<False>: do not blink the cursor [default];
943option B<-bc>. 1050option B<-bc>.
944 1051
1052=item B<cursorUnderline:> I<boolean>
1053
1054B<True>: Make the cursor underlined. B<False>: Make the cursor a box [default];
1055option B<-uc>.
1056
945=item B<pointerBlank:> I<boolean> 1057=item B<pointerBlank:> I<boolean>
946 1058
947B<True>: blank the pointer when a key is pressed or after a set number 1059B<True>: blank the pointer when a key is pressed or after a set number
948of seconds of inactivity. B<False>: the pointer is always visible 1060of seconds of inactivity. B<False>: the pointer is always visible
949[default]. 1061[default].
962large number (e.g. C<987654321>) to effectively disable the timeout. 1074large number (e.g. C<987654321>) to effectively disable the timeout.
963 1075
964=item B<backspacekey:> I<string> 1076=item B<backspacekey:> I<string>
965 1077
966The string to send when the backspace key is pressed. If set to B<DEC> 1078The string to send when the backspace key is pressed. If set to B<DEC>
967or unset it will send B<Delete> (code 127) or, if shifted, B<Backspace> 1079or unset it will send B<Delete> (code 127) or, with control, B<Backspace>
968(code 8) - which can be reversed with the appropriate DEC private mode 1080(code 8) - which can be reversed with the appropriate DEC private mode
969escape sequence. 1081escape sequence.
970 1082
971=item B<deletekey:> I<string> 1083=item B<deletekey:> I<string>
972 1084
985will be created). In this mode, characters outside ISO-8859-1 can be used. 1097will be created). In this mode, characters outside ISO-8859-1 can be used.
986 1098
987When the selection extension is not used, only ISO-8859-1 characters can 1099When the selection extension is not used, only ISO-8859-1 characters can
988be used. If not specified, the built-in default is used: 1100be used. If not specified, the built-in default is used:
989 1101
990B<< BACKSLASH `"'&()*,;<=>?@[]{|} >> 1102B<< BACKSLASH `"'&()*,;<=>?@[]^{|} >>
991 1103
992=item B<preeditType:> I<style> 1104=item B<preeditType:> I<style>
993 1105
994B<OverTheSpot>, B<OffTheSpot>, B<Root>; option B<-pt>. 1106B<OverTheSpot>, B<OffTheSpot>, B<Root>; option B<-pt>.
995 1107
1051 1163
1052=item B<secondaryScroll:> I<boolean> 1164=item B<secondaryScroll:> I<boolean>
1053 1165
1054Turn on/off secondary screen scroll (default enabled). If this 1166Turn on/off secondary screen scroll (default enabled). If this
1055option is enabled, scrolls on the secondary screen will change the 1167option is enabled, scrolls on the secondary screen will change the
1056scrollback buffer and switching to/from the secondary screen will 1168scrollback buffer and, when secondaryScreen is off, switching
1057instead scroll the screen up. 1169to/from the secondary screen will instead scroll the screen up.
1058 1170
1059=item B<hold>: I<boolean> 1171=item B<hold>: I<boolean>
1060 1172
1061Turn on/off hold window after exit support. If enabled, @@RXVT_NAME@@ 1173Turn on/off hold window after exit support. If enabled, @@RXVT_NAME@@
1062will not immediately destroy its window when the program executed within 1174will not immediately destroy its window when the program executed within
1063it exits. Instead, it will wait till it is being killed or closed by the 1175it exits. Instead, it will wait till it is being killed or closed by the
1064user. 1176user.
1177
1178=item B<chdir>: I<path>
1179
1180Sets the working directory for the shell (or the command specified via
1181B<-e>). The I<path> must be an absolute path and it must exist for
1182@@RXVT_NAME@@ to start. If it isn't specified then the current working
1183directory will be used; option B<-cd>.
1065 1184
1066=item B<keysym.>I<sym>: I<string> 1185=item B<keysym.>I<sym>: I<string>
1067 1186
1068Compile I<frills>: Associate I<string> with keysym I<sym>. The 1187Compile I<frills>: Associate I<string> with keysym I<sym>. The
1069intervening resource name B<keysym.> cannot be omitted. 1188intervening resource name B<keysym.> cannot be omitted.
1083searching keysym macros from B</usr/X11R6/include/X11/keysymdef.h> and 1202searching keysym macros from B</usr/X11R6/include/X11/keysymdef.h> and
1084omitting the prefix B<XK_>. Alternatively you can specify I<key> by its hex 1203omitting the prefix B<XK_>. Alternatively you can specify I<key> by its hex
1085keysym value (B<0x0000 - 0xFFFF>). Note that the lookup of I<sym>s is not 1204keysym value (B<0x0000 - 0xFFFF>). Note that the lookup of I<sym>s is not
1086performed in an exact manner; however, the closest match is assured. 1205performed in an exact manner; however, the closest match is assured.
1087 1206
1088I<string> may contain escape values (C<\a>: bell, C<\b>: backspace, 1207I<string> may contain escape values (C<\n>: newline, C<\000>: octal
1089C<\e>, C<\E>: escape, C<\n>: newline, C<\r>: carriage return, C<\t>: tab, 1208number), see RESOURCES in C<man 7 X> for further details.
1090C<\000>: octal number) or verbatim control characters (C<^?>: delete,
1091C<^@>: null, C<^A> ...) and may be enclosed with double quotes so that it
1092can start or end with whitespace. B<This feature is deprecated and will
1093be removed>.
1094 1209
1095Please note that you need to double the C<\> in resource files, as
1096Xlib itself does its own de-escaping (you can use C<\033> instead of
1097C<\e> (and so on), which will work with both Xt and @@RXVT_NAME@@'s own
1098processing).
1099
1100You can define a range of keysyms in one shot by providing a I<string> 1210You can define a range of keysyms in one shot by
1211loading the C<keysym-list> perl extension and providing a I<string>
1101with pattern B<list/PREFIX/MIDDLE/SUFFIX>, where the delimiter `/' 1212with pattern B<list/PREFIX/MIDDLE/SUFFIX>, where the delimiter `/'
1102should be a character not used by the strings. 1213should be a character not used by the strings.
1103 1214
1104Its usage can be demonstrated by an example: 1215Its usage can be demonstrated by an example:
1105 1216
1106 URxvt.keysym.M-C-0x61: list|\033<M-C-|abc|> 1217 URxvt.keysym.M-C-0x61: list|\033<|abc|>
1107 1218
1108The above line is equivalent to the following three lines: 1219The above line is equivalent to the following three lines:
1109 1220
1110 URxvt.keysym.Meta-Control-0x61: \033<M-C-a> 1221 URxvt.keysym.Meta-Control-0x61: \033<a>
1111 URxvt.keysym.Meta-Control-0x62: \033<M-C-b> 1222 URxvt.keysym.Meta-Control-0x62: \033<b>
1112 URxvt.keysym.Meta-Control-0x63: \033<M-C-c> 1223 URxvt.keysym.Meta-Control-0x63: \033<c>
1113 1224
1114If I<string> takes the form of C<command:STRING>, the specified B<STRING> 1225If I<string> takes the form of C<command:STRING>, the specified B<STRING>
1115is interpreted and executed as @@RXVT_NAME@@'s control sequence. For 1226is interpreted and executed as @@RXVT_NAME@@'s control sequence. For
1116example the following means "change the current locale to C<zh_CN.GBK> 1227example the following means "change the current locale to C<zh_CN.GBK>
1117when Control-Meta-c is being pressed": 1228when Control-Meta-c is being pressed":
1118 1229
1119 URxvt.keysym.M-C-c: command:\033]701;zh_CN.GBK\007 1230 URxvt.keysym.M-C-c: command:\033]701;zh_CN.GBK\007
1120 1231
1121If I<string> takes the form C<perl:STRING>, then the specified B<STRING> 1232If I<string> takes the form C<perl:STRING>, then the specified B<STRING>
1122is passed to the C<on_keyboard_command> perl handler. See the @@RXVT_NAME@@perl(3) 1233is passed to the C<on_user_command> perl handler. See the @@RXVT_NAME@@perl(3)
1123manpage. For example, the F<selection> extension (activated via 1234manpage. For example, the F<selection> extension (activated via
1124C<@@RXVT_NAME@@ -pe selection>) listens for C<selection:rot13> events: 1235C<@@RXVT_NAME@@ -pe selection>) listens for C<selection:rot13> events:
1125 1236
1126 URxvt.keysym.M-C-c: perl:selection:rot13 1237 URxvt.keysym.M-C-c: perl:selection:rot13
1127 1238
1128Due the the large number of modifier combinations, a defined key mapping 1239Due the the large number of modifier combinations, a defined key mapping
1129will match if at I<at least> the specified identifiers are being set, and 1240will match if I<at least> the specified identifiers are being set, and
1130no other key mappings with those and more bits are being defined. That 1241no other key mappings with those and more bits are being defined. That
1131means that defining a key map for C<a> will automatically provide 1242means that defining a key map for C<a> will automatically provide
1132definitions for C<Meta-a>, C<Shift-a> and so on, unless some of those are defined 1243definitions for C<Meta-a>, C<Shift-a> and so on, unless some of those are defined
1133mappings themselves. 1244mappings themselves.
1134 1245
1185all instances, while B<perl-ext> is used for specific instances. 1296all instances, while B<perl-ext> is used for specific instances.
1186 1297
1187=item B<perl-eval>: I<string> 1298=item B<perl-eval>: I<string>
1188 1299
1189Perl code to be evaluated when all extensions have been registered. See 1300Perl code to be evaluated when all extensions have been registered. See
1190the @@RXVT_NAME@@perl(3) manpage. Due to security reasons, this resource 1301the @@RXVT_NAME@@perl(3) manpage.
1191will be ignored when running setuid/setgid.
1192 1302
1193=item B<perl-lib>: I<path> 1303=item B<perl-lib>: I<path>
1194 1304
1195Colon-separated list of additional directories that hold extension 1305Colon-separated list of additional directories that hold extension
1196scripts. When looking for extensions specified by the C<perl> resource, 1306scripts. When looking for perl extensions, @@RXVT_NAME@@ will first
1197@@RXVT_NAME@@ will first look in these directories and then in 1307look in these directories, then in $HOME/.urxvt/ext and lastly in
1198F<@@RXVT_LIBDIR@@/urxvt/perl/>. Due to security reasons, this resource 1308F<@@RXVT_LIBDIR@@/urxvt/perl/>.
1199will be ignored when running setuid/setgid.
1200 1309
1201See the @@RXVT_NAME@@perl(3) manpage. 1310See the @@RXVT_NAME@@perl(3) manpage.
1202 1311
1203=item B<< selection.pattern-I<idx> >>: I<perl-regex> 1312=item B<< selection.pattern-I<idx> >>: I<perl-regex>
1204 1313
1226 1335
1227=item B<override-redirect>: I<boolean> 1336=item B<override-redirect>: I<boolean>
1228 1337
1229Compile I<frills>: Sets override-redirect for the terminal window, making 1338Compile I<frills>: Sets override-redirect for the terminal window, making
1230it almost invisible to window managers; option B<-override-redirect>. 1339it almost invisible to window managers; option B<-override-redirect>.
1340
1341=item B<iso14755:> I<boolean>
1342
1343Turn on/off ISO 14755 (default enabled).
1231 1344
1232=item B<iso14755_52:> I<boolean> 1345=item B<iso14755_52:> I<boolean>
1233 1346
1234Turn on/off ISO 14755 5.2 mode (default enabled). 1347Turn on/off ISO 14755 5.2 mode (default enabled).
1235 1348
1378B<@@RXVT_NAME@@> tries to write an entry into the I<utmp>(5) file so that 1491B<@@RXVT_NAME@@> tries to write an entry into the I<utmp>(5) file so that
1379it can be seen via the I<who(1)> command, and can accept messages. To 1492it can be seen via the I<who(1)> command, and can accept messages. To
1380allow this feature, B<@@RXVT_NAME@@> may need to be installed setuid root 1493allow this feature, B<@@RXVT_NAME@@> may need to be installed setuid root
1381on some systems or setgid to root or to some other group on others. 1494on some systems or setgid to root or to some other group on others.
1382 1495
1383=head1 COLORS AND GRAPHICS 1496=head1 COLOURS AND GRAPHICS
1384 1497
1385In addition to the default foreground and background colours, 1498In addition to the default foreground and background colours,
1386B<@@RXVT_NAME@@> can display up to 16 colours (8 ANSI colours plus 1499B<@@RXVT_NAME@@> can display up to 88/256 colours: 8 ANSI colours plus
1387high-intensity bold/blink versions of the same). Here is a list of the 1500high-intensity (potentially bold/blink) versions of the same, and 72 (or
1388colours with their names. 1501240 in 256 colour mode) colours arranged in an 4x4x4 (or 6x6x6) colour RGB
1502cube plus a 8 (24) colour greyscale ramp.
1503
1504Here is a list of the ANSI colours with their names.
1389 1505
1390=begin table 1506=begin table
1391 1507
1392 B<color0> (black) = Black 1508 B<color0> (black) = Black
1393 B<color1> (red) = Red3 1509 B<color1> (red) = Red3
1413It is also possible to specify the colour values of B<foreground>, 1529It is also possible to specify the colour values of B<foreground>,
1414B<background>, B<cursorColor>, B<cursorColor2>, B<colorBD>, B<colorUL> as 1530B<background>, B<cursorColor>, B<cursorColor2>, B<colorBD>, B<colorUL> as
1415a number 0-15, as a convenient shorthand to reference the colour name of 1531a number 0-15, as a convenient shorthand to reference the colour name of
1416color0-color15. 1532color0-color15.
1417 1533
1418In addition to the colours defined above, @@RXVT_NAME@@ offers an 1534The following text gives values for the standard 88 colour mode (and
1419additional 72 colours. The first 64 of those (with indices 16 to 79) 1535values for the 256 colour mode in parentheses).
1420consist of a 4*4*4 RGB colour cube (i.e. I<index = r * 16 + g * 4 + b +
142116>), followed by 8 additional shades of gray (with indices 80 to 87).
1422 1536
1537The RGB cube uses indices 16..79 (16..231) using the following formulas:
1538
1539 index_88 = (r * 4 + g) * 4 + b + 16 # r, g, b = 0..3
1540 index_256 = (r * 16 + g) * 16 + b + 16 # r, g, b = 0..15
1541
1542The grayscale ramp uses indices 80..87 (232..239), from 10% to 90% in 10%
1543steps (1/26 to 25/26 in 1/26 steps) - black and white are already part of
1544the RGB cube.
1545
1423Together, all those colours implement the 88 colour xterm colours. Only 1546Together, all those colours implement the 88 (256) colour xterm
1424the first 16 can be changed using resources currently, the rest can only 1547colours. Only the first 16 can be changed using resources currently, the
1425be changed via command sequences ("escape codes"). 1548rest can only be changed via command sequences ("escape codes").
1549
1550Applications are advised to use terminfo or command sequences to discover
1551number and RGB values of all colours (yes, you can query this...).
1426 1552
1427Note that B<-rv> (B<"reverseVideo: True">) simulates reverse video by 1553Note that B<-rv> (B<"reverseVideo: True">) simulates reverse video by
1428always swapping the foreground/background colours. This is in contrast to 1554always swapping the foreground/background colours. This is in contrast to
1429I<xterm>(1) where the colours are only swapped if they have not otherwise 1555I<xterm>(1) where the colours are only swapped if they have not otherwise
1430been specified. For example, 1556been specified. For example,
1431 1557
1432=over 4
1433
1434=item B<@@RXVT_NAME@@ -fg Black -bg White -rv> 1558 @@RXVT_NAME@@ -fg Black -bg White -rv
1435 1559
1436would yield White on Black, while on I<xterm>(1) it would yield Black 1560would yield White on Black, while on I<xterm>(1) it would yield Black on
1437on White. 1561White.
1438
1439=back
1440 1562
1441=head2 ALPHA CHANNEL SUPPORT 1563=head2 ALPHA CHANNEL SUPPORT
1442 1564
1443If Xft support has been compiled in and as long as Xft/Xrender/X don't get 1565If Xft support has been compiled in and as long as Xft/Xrender/X don't get
1444their act together, rxvt-unicode will support C<rgba:rrrr/gggg/bbbb/aaaa> 1566their act together, rxvt-unicode will do its own alpha channel management:
1445(recommended, but B<MUST> have 4 digits/component) colour specifications, 1567
1446in addition to the ones provided by X, where the additional A component 1568You can prefix any colour with an opaqueness percentage enclosed in
1569brackets, i.e. C<[percent]>, where C<percent> is a decimal percentage
1570(0-100) that specifies the opacity of the colour, where C<0> is completely
1571transparent and C<100> is completely opaque. For example, C<[50]red> is a
1572half-transparent red, while C<[95]#00ff00> is an almost opaque green. This
1573is the recommended format to specify transparency values, and works with
1574all ways to specify a colour.
1575
1576For complete control, rxvt-unicode also supports
1577C<rgba:rrrr/gggg/bbbb/aaaa> (exactly four hex digits/component) colour
1578specifications, where the additional C<aaaa> component specifies opacity
1447specifies opacity (alpha) values. The minimum value of C<0> is completely 1579(alpha) values. The minimum value of C<0000> is completely transparent,
1448transparent). You can also prefix any color with C<[percent]>, where 1580while C<ffff> is completely opaque). The two example colours from
1449C<percent> is a decimal percentage (0-100) that specifies the opacity of 1581earlier could also be specified as C<rgba:ff00/0000/0000/8000> and
1450the color, where C<0> is completely transparent and C<100> is completelxy 1582C<rgba:0000/ff00/0000/f332>.
1451opaque.
1452 1583
1453You probably need to specify B<"-depth 32">, too, and have the luck that 1584You probably need to specify B<"-depth 32">, too, to force a visual with
1454your X-server uses ARGB pixel layout, as X is far from just supporting 1585alpha channels, and have the luck that your X-server uses ARGB pixel
1455ARGB visuals out of the box, and rxvt-unicode just fudges around. 1586layout, as X is far from just supporting ARGB visuals out of the box, and
1587rxvt-unicode just fudges around.
1456 1588
1457For example, the following selects an almost completely transparent red 1589For example, the following selects an almost completely transparent black
1458background, and an almost opaque pink foreground: 1590background, and an almost opaque pink foreground:
1459 1591
1460 @@RXVT_NAME@@ -depth 32 -bg rgba:0000/0000/0000/aaaa -fg "[80]pink" 1592 @@RXVT_NAME@@ -depth 32 -bg rgba:0000/0000/0000/4444 -fg "[80]pink"
1461 1593
1462I<Please note that transparency of any kind if completely unsupported by 1594When not using a background image, then the interpretation of the
1463the author. Don't bug him with installation questions!> 1595alpha channel is up to your compositing manager (most interpret it as
1596transparency of course).
1597
1598When using a background pixmap or pseudo-transparency, then the background
1599colour will always behave as if it were completely transparent (so the
1600background image shows instead), regardless of how it was specified, while
1601other colours will either be transparent as specified (the background
1602image will show through) on servers supporting the RENDER extension, or
1603fully opaque on servers not supporting the RENDER EXTENSION.
1604
1605Please note that due to bugs in Xft, specifying alpha values might result
1606in garbage being displayed when the X-server does not support the RENDER
1607extension.
1464 1608
1465=head1 ENVIRONMENT 1609=head1 ENVIRONMENT
1466 1610
1467B<@@RXVT_NAME@@> sets and/or uses the following environment variables: 1611B<@@RXVT_NAME@@> sets and/or uses the following environment variables:
1468 1612
1474resources or on the command line. 1618resources or on the command line.
1475 1619
1476=item B<COLORTERM> 1620=item B<COLORTERM>
1477 1621
1478Either C<rxvt>, C<rxvt-xpm>, depending on whether @@RXVT_NAME@@ was 1622Either C<rxvt>, C<rxvt-xpm>, depending on whether @@RXVT_NAME@@ was
1479compiled with background image support, and optionally with the added 1623compiled with background image support, and optionally with the added
1480extension C<-mono> to indicate that rxvt-unicode runs on a monochrome 1624extension C<-mono> to indicate that rxvt-unicode runs on a monochrome
1481screen. 1625screen.
1482 1626
1483=item B<COLORFGBG> 1627=item B<COLORFGBG>
1484 1628
1485Set to a string of the form C<fg;bg> or C<fg;xpm;bg>, where C<fg> is 1629Set to a string of the form C<fg;bg> or C<fg;xpm;bg>, where C<fg> is
1486the colour code used as default foreground/text colour (or the string 1630the colour code used as default foreground/text colour (or the string
1487C<default> to indicate that the default-colour escape sequence is to be 1631C<default> to indicate that the default-colour escape sequence is to be
1488used), C<bg> is the colour code used as default background colour (or the 1632used), C<bg> is the colour code used as default background colour (or the
1489string C<default>), and C<xpm> is the string C<default> if @@RXVT_NAME@@ 1633string C<default>), and C<xpm> is the string C<default> if @@RXVT_NAME@@
1490was compiled with background image support. Libraries like C<ncurses> 1634was compiled with background image support. Libraries like C<ncurses>
1491and C<slang> can (and do) use this information to optimize screen output. 1635and C<slang> can (and do) use this information to optimize screen output.
1492 1636
1493=item B<WINDOWID> 1637=item B<WINDOWID>
1494 1638
1495Set to the (decimal) X Window ID of the @@RXVT_NAME@@ window (the toplevel 1639Set to the (decimal) X Window ID of the @@RXVT_NAME@@ window (the toplevel
1502C<--with-terminfo=PATH>. 1646C<--with-terminfo=PATH>.
1503 1647
1504=item B<DISPLAY> 1648=item B<DISPLAY>
1505 1649
1506Used by @@RXVT_NAME@@ to connect to the display and set to the correct 1650Used by @@RXVT_NAME@@ to connect to the display and set to the correct
1507display in its child processes. 1651display in its child processes if C<-display> isn't used to override. It
1652defaults to C<:0> if it doesn't exist.
1508 1653
1509=item B<SHELL> 1654=item B<SHELL>
1510 1655
1511The shell to be used for command execution, defaults to C</bin/sh>. 1656The shell to be used for command execution, defaults to C</bin/sh>.
1512 1657
1513=item B<RXVT_SOCKET> 1658=item B<RXVT_SOCKET>
1514 1659
1515The unix domain socket path used by @@RXVT_NAME@@c(1) and 1660The unix domain socket path used by @@RXVT_NAME@@c(1) and
1516@@RXVT_NAME@@d(1). 1661@@RXVT_NAME@@d(1).
1517 1662
1518Default F<<< $HOME/.rxvt-unicode-I<< <nodename >> >>>. 1663Default F<<< $HOME/.urxvt/urxvtd-I<< <nodename> >> >>>.
1519 1664
1520=item B<HOME> 1665=item B<HOME>
1521 1666
1522Used to locate the default directory for the unix domain socket for 1667Used to locate the default directory for the unix domain socket for
1523daemon communications and to locate various resource files (such as 1668daemon communications and to locate various resource files (such as
1524C<.Xdefaults>) 1669C<.Xdefaults>)
1525 1670
1526=item B<XAPPLRESDIR> 1671=item B<XAPPLRESDIR>
1527 1672
1528Directory where various X resource files are being located. 1673Directory where application-specific X resource files are located.
1529 1674
1530=item B<XENVIRONMENT> 1675=item B<XENVIRONMENT>
1531 1676
1532If set and accessible, gives the name of a X resource file to be loaded by 1677If set and accessible, gives the name of a X resource file to be loaded by
1533@@RXVT_NAME@@. 1678@@RXVT_NAME@@.
1538 1683
1539=over 4 1684=over 4
1540 1685
1541=item B</usr/lib/X11/rgb.txt> 1686=item B</usr/lib/X11/rgb.txt>
1542 1687
1543Color names. 1688Colour names.
1544 1689
1545=back 1690=back
1546 1691
1547=head1 SEE ALSO 1692=head1 SEE ALSO
1548 1693
1587Project Coordinator (changes.txt 2.21a to 2.4.5) 1732Project Coordinator (changes.txt 2.21a to 2.4.5)
1588 1733
1589=item Geoff Wing L<< <gcw@pobox.com> >> 1734=item Geoff Wing L<< <gcw@pobox.com> >>
1590 1735
1591Rewrote screen display and text selection routines. 1736Rewrote screen display and text selection routines.
1592 1737
1593Project Coordinator (changes.txt 2.4.6 - rxvt-unicode) 1738Project Coordinator (changes.txt 2.4.6 - rxvt-unicode)
1594 1739
1595=item Marc Alexander Lehmann L<< <rxvt-unicode@schmorp.de> >> 1740=item Marc Alexander Lehmann L<< <rxvt-unicode@schmorp.de> >>
1596 1741
1597Forked rxvt-unicode, unicode support, rewrote almost all the code, perl 1742Forked rxvt-unicode, unicode support, rewrote almost all the code, perl
1599 1744
1600Project Coordinator (Changes 1.0 -) 1745Project Coordinator (Changes 1.0 -)
1601 1746
1602=item Emanuele Giaquinta L<< <e.giaquinta@glauco.it> >> 1747=item Emanuele Giaquinta L<< <e.giaquinta@glauco.it> >>
1603 1748
1604Pty/tty/utmp/wtmp rewrite, lots of random hacking and bugfixing. 1749pty/utmp code rewrite, image code improvements, many random hacks and bugfixes.
1605 1750
1606=back 1751=back
1607 1752

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