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Revision 1.144 by sasha, Thu Nov 15 18:40:10 2007 UTC vs.
Revision 1.205 by sf-exg, Fri Nov 18 02:15:22 2011 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>
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<-tr>|B<+tr> 127=item B<-tr>|B<+tr>
120 128
121Turn on/off illusion of a transparent window background. Obsolete form of it is 129Turn on/off pseudo-transparency by using the root pixmap as background; resource B<transparent>.
122B<-ip> and it should not be used anymore; resource B<transparent>.
123 130
124I<Please note that old resource name of B<inheritPixmap> is obsolete and should be 131B<-ip> is still accepted as an obsolete alias but will be removed in
125changed to B<transparent>. Backwards compatibility support for B<inheritPixmap> will 132future versions.
126be phased out in future versions of rxvt!>
127
128I<Please address all transparency related issues to Sasha Vasko at
129sasha@aftercode.net. Read the FAQ (man 7 @@RXVT_NAME@@)!>
130 133
131=item B<-fade> I<number> 134=item B<-fade> I<number>
132 135
133Fade 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
134fade a little only, 100 completely replaces all colours by the fade 137fade a little only, 100 completely replaces all colours by the fade
139Fade 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
140is opaque black. resource B<fadeColor>. 143is opaque black. resource B<fadeColor>.
141 144
142=item B<-tint> I<colour> 145=item B<-tint> I<colour>
143 146
144Tint the transparent background pixmap with the given colour when 147Tint the transparent background with the given colour;
145transparency is enabled with B<-tr>. This only works for 148resource I<tintColor>.
146non-tiled backgrounds, currently. See also the B<-sh> option that can be
147used to brighten or darken the image in addition to tinting it.
148Please note that certain tint colours can be applied on the server-side,
149thus yielding performance gain of two orders of magnitude. These colours are:
150blue, red, green, cyan, magenta, yellow, and those close to them. Also
151pure black and pure white colors essentially mean no tinting; resource
152I<tintColor>. Example:
153
154 @@RXVT_NAME@@ -tr -tint blue -sh 40
155 149
156=item B<-sh> I<number> 150=item B<-sh> I<number>
157 151
158Darken (0 .. 100) or lighten (100 .. 200) the transparent 152Darken (0 .. 99) or lighten (101 .. 200) the transparent background.
159background image in addition to (or instead of) tinting it; 153A value of 100 means no shading; resource I<shading>.
160resource I<shading>.
161 154
162=item B<-blt> I<string> 155=item B<-blt> I<string>
163 156
164Specify background blending type. If background pixmap is specified 157Specify background blending type. If background pixmap is specified
165at the same time as transparency - such pixmap will be blended over 158at the same time as transparency - such pixmap will be blended over
166transparency image, using method specified. Supported values are : 159the transparent background, using the method specified. Supported values are:
167B<add>, B<alphablend>, B<allanon> - color values averaging, B<colorize>, 160B<add>, B<alphablend>, B<allanon> - colour values averaging, B<colorize>,
168B<darken>, B<diff>, B<dissipate>, B<hue>, B<lighten>, B<overlay>, 161B<darken>, B<diff>, B<dissipate>, B<hue>, B<lighten>, B<overlay>,
169B<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
170alpha-blending. Compile I<afterimage>; resource I<blendType>. 163alpha-blending. Compile I<afterimage>; resource I<blendType>.
171 164
172=item B<-blr> I<HxV> 165=item B<-blr> I<HxV>
173 166
174Apply Gaussian Blur with the specified radii to the transparent 167Apply Gaussian Blur with the specified radii to the transparent
175background image. If single number is specified - both vertical and 168background. If a single number is specified - both vertical and
176horizontal radii are considered to be the same. Setting one of the 169horizontal radii are considered to be the same. Setting one of the
177radii to 1 and another to a large number creates interesting effects 170radii to 1 and another to a large number creates interesting effects
178on some backgrounds. Maximum radius value is 128. Compile I<afterimage>; 171on some backgrounds. Maximum radius value is 128;
179resource I<blurRadius>. 172resource I<blurRadius>.
180 173
174=item B<-icon> I<file>
175
176Compile I<afterimage> or I<pixbuf>: Use the specified image as application icon. This
177is used by many window managers, taskbars and pagers to represent the
178application window; resource I<iconFile>.
179
181=item B<-bg> I<colour> 180=item B<-bg> I<colour>
182 181
183Window background colour; resource B<background>. 182Window background colour; resource B<background>.
184 183
185=item B<-fg> I<colour> 184=item B<-fg> I<colour>
186 185
187Window foreground colour; resource B<foreground>. 186Window foreground colour; resource B<foreground>.
188 187
189=item B<-pixmap> I<file[;geom[:op1][:op2][...]]> 188=item B<-pixmap> I<file[;oplist]>
190 189
191Compile I<afterimage>: Specify image file for the background and also 190Compile I<afterimage> or I<pixbuf>: Specify image file for the background and also
192optionally specify its scaling with a geometry string. Note you may need to 191optionally specify a list of operations to modify it. Note you may need to
193add quotes to avoid special shell interpretation of the C<;> in the 192add quotes to avoid special shell interpretation of the C<;> in the
194command-line; for more details see resource B<backgroundPixmap>. 193command-line; for more details see resource B<backgroundPixmap>.
195 194
196=item B<-cr> I<colour> 195=item B<-cr> I<colour>
197 196
244italic> >> characters are to be printed. See resource B<boldItalicFont> 243italic> >> characters are to be printed. See resource B<boldItalicFont>
245for details. 244for details.
246 245
247=item B<-is>|B<+is> 246=item B<-is>|B<+is>
248 247
249Compile I<font-styles>: Bold/Italic font styles imply high intensity 248Compile I<font-styles>: Bold/Blink font styles imply high intensity
250foreground/background (default). See resource B<intensityStyles> for 249foreground/background (default). See resource B<intensityStyles> for
251details. 250details.
252 251
253=item B<-name> I<name> 252=item B<-name> I<name>
254 253
272 271
273=item B<-sb>|B<+sb> 272=item B<-sb>|B<+sb>
274 273
275Turn on/off scrollbar; resource B<scrollBar>. 274Turn on/off scrollbar; resource B<scrollBar>.
276 275
276=item B<-sr>|B<+sr>
277
278Put scrollbar on right/left; resource B<scrollBar_right>.
279
280=item B<-st>|B<+st>
281
282Display rxvt (non XTerm/NeXT) scrollbar without/with a trough;
283resource B<scrollBar_floating>.
284
277=item B<-si>|B<+si> 285=item B<-si>|B<+si>
278 286
279Turn on/off scroll-to-bottom on TTY output inhibit; resource 287Turn on/off scroll-to-bottom on TTY output inhibit; resource
280B<scrollTtyOutput> has opposite effect. 288B<scrollTtyOutput> has opposite effect.
281 289
287=item B<-sw>|B<+sw> 295=item B<-sw>|B<+sw>
288 296
289Turn on/off scrolling with the scrollback buffer as new lines appear. 297Turn on/off scrolling with the scrollback buffer as new lines appear.
290This only takes effect if B<-si> is also given; resource 298This only takes effect if B<-si> is also given; resource
291B<scrollWithBuffer>. 299B<scrollWithBuffer>.
292
293=item B<-sr>|B<+sr>
294
295Put scrollbar on right/left; resource B<scrollBar_right>.
296
297=item B<-st>|B<+st>
298
299Display rxvt (non XTerm/NeXT) scrollbar without/with a trough;
300resource B<scrollBar_floating>.
301 300
302=item B<-ptab>|B<+ptab> 301=item B<-ptab>|B<+ptab>
303 302
304If enabled (default), "Horizontal Tab" characters are being stored as 303If enabled (default), "Horizontal Tab" characters are being stored as
305actual wide characters in the screen buffer, which makes it possible to 304actual wide characters in the screen buffer, which makes it possible to
309 308
310=item B<-bc>|B<+bc> 309=item B<-bc>|B<+bc>
311 310
312Blink the cursor; resource B<cursorBlink>. 311Blink the cursor; resource B<cursorBlink>.
313 312
313=item B<-uc>|B<+uc>
314
315Make the cursor underlined; resource B<cursorUnderline>.
316
314=item B<-iconic> 317=item B<-iconic>
315 318
316Start iconified, if the window manager supports that option. 319Start iconified, if the window manager supports that option.
317Alternative form is B<-ic>. 320Alternative form is B<-ic>.
318 321
334 337
335=item B<-bl> 338=item B<-bl>
336 339
337Compile I<frills>: Set MWM hints to request a borderless window, i.e. 340Compile I<frills>: Set MWM hints to request a borderless window, i.e.
338if honoured by the WM, the rxvt-unicode window will not have window 341if honoured by the WM, the rxvt-unicode window will not have window
339decorations; resource B<borderLess>. 342decorations; resource B<borderLess>. If the window manager does not
343support MWM hints (e.g. kwin), enables override-redirect mode.
340 344
341=item B<-override-redirect> 345=item B<-override-redirect>
342 346
343Compile I<frills>: Sets override-redirect on the window; resource 347Compile I<frills>: Sets override-redirect on the window; resource
344B<override-redirect>. 348B<override-redirect>.
353=item B<-lsp> I<number> 357=item B<-lsp> I<number>
354 358
355Compile I<frills>: Lines (pixel height) to insert between each row of 359Compile I<frills>: Lines (pixel height) to insert between each row of
356the display. Useful to work around font rendering problems; resource 360the display. Useful to work around font rendering problems; resource
357B<lineSpace>. 361B<lineSpace>.
362
363=item B<-letsp> I<number>
364
365Compile I<frills>: Amount to adjust the computed character width by
366to control overall letter spacing. Negative values will tighten up the
367letter spacing, positive values will space letters out more. Useful to
368work around odd font metrics; resource B<letterSpace>.
358 369
359=item B<-tn> I<termname> 370=item B<-tn> I<termname>
360 371
361This option specifies the name of the terminal type to be set in the 372This option specifies the name of the terminal type to be set in the
362B<TERM> environment variable. This terminal type must exist in the 373B<TERM> environment variable. This terminal type must exist in the
417 428
418=item B<-tcw> 429=item B<-tcw>
419 430
420Change the meaning of triple-click selection with the left mouse 431Change the meaning of triple-click selection with the left mouse
421button. Only effective when the original (non-perl) selection code is 432button. Only effective when the original (non-perl) selection code is
422in-use. Instead of selecting a full line it will extend the selection the 433in-use. Instead of selecting a full line it will extend the selection to
423end of the logical line only. resource B<tripleclickwords>. 434the end of the logical line only. resource B<tripleclickwords>.
424 435
425=item B<-insecure> 436=item B<-insecure>
426 437
427Enable "insecure" mode, which currently enables most of the escape 438Enable "insecure" mode, which currently enables most of the escape
428sequences that echo strings. See the resource B<insecure> for more 439sequences that echo strings. See the resource B<insecure> for more
448 459
449Turn on/off hold window after exit support. If enabled, @@RXVT_NAME@@ 460Turn on/off hold window after exit support. If enabled, @@RXVT_NAME@@
450will not immediately destroy its window when the program executed within 461will not immediately destroy its window when the program executed within
451it exits. Instead, it will wait till it is being killed or closed by the 462it exits. Instead, it will wait till it is being killed or closed by the
452user; resource B<hold>. 463user; resource B<hold>.
464
465=item B<-cd> I<path>
466
467Sets the working directory for the shell (or the command specified via
468B<-e>). The I<path> must be an absolute path and it must exist for
469@@RXVT_NAME@@ to start; resource B<chdir>.
470
471=item B<-xrm> I<string>
472
473Works like the X Toolkit option of the same name, by adding the I<string>
474as if it were specified in a resource file. Resource values specified this
475way take precedence over all other resource specifications.
476
477Note that you need to use the I<same> syntax as in the .Xdefaults file,
478e.g. C<*.background: black>. Also note that all @@RXVT_NAME@@-specific
479options can be specified as long-options on the commandline, so use
480of B<-xrm> is mostly limited to cases where you want to specify other
481resources (e.g. for input methods) or for compatibility with other
482programs.
453 483
454=item B<-keysym.>I<sym> I<string> 484=item B<-keysym.>I<sym> I<string>
455 485
456Remap a key symbol. See resource B<keysym>. 486Remap a key symbol. See resource B<keysym>.
457 487
492If this switch is given, @@RXVT_NAME@@ will not create any utmp/wtmp 522If this switch is given, @@RXVT_NAME@@ will not create any utmp/wtmp
493entries and will not tinker with pty/tty permissions - you have to do that 523entries and will not tinker with pty/tty permissions - you have to do that
494yourself if you want that. 524yourself if you want that.
495 525
496As an extremely special case, specifying C<-1> will completely suppress 526As an extremely special case, specifying C<-1> will completely suppress
497pty/tty operations. 527pty/tty operations, which is probably only useful in conjunction with some
528perl extension that manages the terminal.
498 529
499Here is a example in perl that illustrates how this option can be used (a 530Here is a example in perl that illustrates how this option can be used (a
500longer example is in F<doc/pty-fd>): 531longer example is in F<doc/pty-fd>):
501 532
502 use IO::Pty; 533 use IO::Pty;
516Comma-separated list of perl extension scripts to use (or not to use) in 547Comma-separated list of perl extension scripts to use (or not to use) in
517this terminal instance. See resource B<perl-ext> for details. 548this terminal instance. See resource B<perl-ext> for details.
518 549
519=back 550=back
520 551
521=head1 RESOURCES (available also as long-options) 552=head1 RESOURCES
522 553
523Note: `@@RXVT_NAME@@ --help' gives a list of all resources (long 554Note: `@@RXVT_NAME@@ --help' gives a list of all resources (long
524options) compiled into your version. 555options) compiled into your version. All resources are also available as
556long-options.
525 557
526You can set and change the resources using X11 tools like B<xrdb>. Many 558You can set and change the resources using X11 tools like B<xrdb>. Many
527distribution do also load settings from the B<~/.Xresources> file when X 559distribution do also load settings from the B<~/.Xresources> file when X
528starts. @@RXVT_NAME@@ will consult the following files/resources in order, 560starts. @@RXVT_NAME@@ will consult the following files/resources in order,
529with later settings overwriting earlier ones: 561with later settings overwriting earlier ones:
530 562
531 1. system-wide app-defaults file, either locale-dependent OR global
532 2. app-defaults file in $XAPPLRESDIR 563 1. app-defaults file in $XAPPLRESDIR
564 2. $HOME/.Xdefaults
533 3. RESOURCE_MANAGER property on root-window OR $HOME/.Xdefaults 565 3. RESOURCE_MANAGER property on root-window of screen 0
534 4. SCREEN_RESOURCES for the current screen 566 4. SCREEN_RESOURCES property on root-window of the current screen
535 5. $XENVIRONMENT file OR $HOME/.Xdefaults-<nodename> 567 5. $XENVIRONMENT file OR $HOME/.Xdefaults-<nodename>
568 6. resources specified via -xrm on the commandline
536 569
537Note that when reading X resources, B<@@RXVT_NAME@@> recognizes two class 570Note that when reading X resources, B<@@RXVT_NAME@@> recognizes two class
538names: B<Rxvt> and B<URxvt>. The class name B<Rxvt> allows resources 571names: B<Rxvt> and B<URxvt>. The class name B<Rxvt> allows resources
539common to both B<@@RXVT_NAME@@> and the original I<rxvt> to be easily 572common to both B<@@RXVT_NAME@@> and the original I<rxvt> to be easily
540configured, while the class name B<URxvt> allows resources unique to 573configured, while the class name B<URxvt> allows resources unique to
550=item B<depth:> I<bitdepth> 583=item B<depth:> I<bitdepth>
551 584
552Compile I<xft>: Attempt to find a visual with the given bit depth; 585Compile I<xft>: Attempt to find a visual with the given bit depth;
553option B<-depth>. 586option B<-depth>.
554 587
588=item B<buffered:> I<boolean>
589
590Compile I<xft>: Turn on/off double-buffering for xft (default enabled).
591On some card/driver combination enabling it slightly decreases
592performance, on most it greatly helps it. The slowdown is small, so it
593should normally be enabled.
594
555=item B<geometry:> I<geom> 595=item B<geometry:> I<geom>
556 596
557Create the window with the specified X window geometry [default 80x24]; 597Create the window with the specified X window geometry [default 80x24];
558option B<-geometry>. 598option B<-geometry>.
559 599
572Use the specified colour for the colour value I<n>, where 0-7 612Use the specified colour for the colour value I<n>, where 0-7
573corresponds to low-intensity (normal) colours and 8-15 corresponds to 613corresponds to low-intensity (normal) colours and 8-15 corresponds to
574high-intensity (bold = bright foreground, blink = bright background) 614high-intensity (bold = bright foreground, blink = bright background)
575colours. The canonical names are as follows: 0=black, 1=red, 2=green, 615colours. The canonical names are as follows: 0=black, 1=red, 2=green,
5763=yellow, 4=blue, 5=magenta, 6=cyan, 7=white, but the actual colour 6163=yellow, 4=blue, 5=magenta, 6=cyan, 7=white, but the actual colour
577names used are listed in the B<COLORS AND GRAPHICS> section. 617names used are listed in the B<COLOURS AND GRAPHICS> section.
578 618
579Colours higher than 15 cannot be set using resources (yet), but can be 619Colours higher than 15 cannot be set using resources (yet), but can be
580changed using an escape command (see @@RXVT_NAME@@(7)). 620changed using an escape command (see @@RXVT_NAME@@(7)).
581 621
582Colours 16-79 form a standard 4x4x4 colour cube (the same as xterm with 622Colours 16-79 form a standard 4x4x4 colour cube (the same as xterm with
593=item B<colorUL:> I<colour> 633=item B<colorUL:> I<colour>
594 634
595Use the specified colour to display underlined characters when the 635Use the specified colour to display underlined characters when the
596foreground colour is the default. 636foreground colour is the default.
597 637
598=item B<colorRV:> I<colour>
599
600Use the specified colour as the background for reverse video characters
601when OPTION_HC is disabled (--disable-frills).
602
603=item B<underlineColor:> I<colour> 638=item B<underlineColor:> I<colour>
604 639
605If set, use the specified colour as the colour for the underline 640If set, use the specified colour as the colour for the underline
606itself. If unset, use the foreground colour. 641itself. If unset, use the foreground colour.
642
643=item B<highlightColor:> I<colour>
644
645If set, use the specified colour as the background for highlighted
646characters. If unset, use reverse video.
647
648=item B<highlightTextColor:> I<colour>
649
650If set and highlightColor is set, use the specified colour as the
651foreground for highlighted characters.
607 652
608=item B<cursorColor:> I<colour> 653=item B<cursorColor:> I<colour>
609 654
610Use the specified colour for the cursor. The default is to use the 655Use the specified colour for the cursor. The default is to use the
611foreground colour; option B<-cr>. 656foreground colour; option B<-cr>.
618 663
619=item B<reverseVideo:> I<boolean> 664=item B<reverseVideo:> I<boolean>
620 665
621B<True>: simulate reverse video by foreground and background colours; 666B<True>: simulate reverse video by foreground and background colours;
622option B<-rv>. B<False>: regular screen colours [default]; option 667option B<-rv>. B<False>: regular screen colours [default]; option
623B<+rv>. See note in B<COLORS AND GRAPHICS> section. 668B<+rv>. See note in B<COLOURS AND GRAPHICS> section.
624 669
625=item B<jumpScroll:> I<boolean> 670=item B<jumpScroll:> I<boolean>
626 671
627B<True>: specify that jump scrolling should be used. When receiving lots 672B<True>: specify that jump scrolling should be used. When receiving lots
628of lines, @@RXVT_NAME@@ will only scroll once a whole screen height of lines 673of lines, @@RXVT_NAME@@ will only scroll once a whole screen height of lines
642 687
643B<False>: specify that everything is to be displayed, even 688B<False>: specify that everything is to be displayed, even
644if the refresh is too fast for the human eye to read anything (or the 689if the refresh is too fast for the human eye to read anything (or the
645monitor to display anything); option B<+ss>. 690monitor to display anything); option B<+ss>.
646 691
647=item B<inheritPixmap:> I<boolean> 692=item B<transparent:> I<boolean>
648 693
649B<True>: make the background inherit the parent windows' pixmap, giving 694Turn on/off pseudo-transparency by using the root pixmap as background.
650artificial transparency. B<False>: do not inherit the parent windows'
651pixmap.
652 695
653I<Please note that transparency of any kind if completely unsupported by 696B<inheritPixmap> is still accepted as an obsolete alias but will be removed in
654the author. Don't bug him with installation questions!> 697future versions.
655 698
656=item B<fading:> I<number> 699=item B<fading:> I<number>
657 700
658Fade the text by the given percentage when focus is lost; option B<-fade>. 701Fade the text by the given percentage when focus is lost; option B<-fade>.
659 702
662Fade to this colour, when fading is used (see B<fading:>). The default 705Fade to this colour, when fading is used (see B<fading:>). The default
663colour is black; option B<-fadecolor>. 706colour is black; option B<-fadecolor>.
664 707
665=item B<tintColor:> I<colour> 708=item B<tintColor:> I<colour>
666 709
667Tint the transparent background pixmap with the given colour; option 710Tint the transparent background with the given colour. If the RENDER
668B<-tint>. 711extension is not available only black, red, green, yellow, blue,
712magenta, cyan and white tints can be performed server-side. Note that
713a black tint yields a completely black image while a white tint yields
714the image unchanged; option B<-tint>.
669 715
670=item B<shading:> I<number> 716=item B<shading:> I<number>
671 717
672Darken (0 .. 100) or lighten (-1 .. -100) the transparent background image 718Darken (0 .. 99) or lighten (101 .. 200) the transparent background.
673in addition to tinting it; option B<-sh>. 719A value of 100 means no shading; option B<-sh>.
674 720
675=item B<blendType:> I<string> 721=item B<blendType:> I<string>
676 722
677Specify background blending type; option B<-blt>. 723Specify background blending type; option B<-blt>.
678 724
679=item B<blurRadius:> I<number> 725=item B<blurRadius:> I<number>
680 726
681Apply Gaussian Blurr with the specified radius to the transparent 727Apply gaussian blur with the specified radius to the transparent
682background image; option B<-blr>. 728background; option B<-blr>.
729
730=item B<iconFile:> I<file>
731
732Set the application icon pixmap; option B<-icon>.
683 733
684=item B<scrollColor:> I<colour> 734=item B<scrollColor:> I<colour>
685 735
686Use the specified colour for the scrollbar [default #B2B2B2]. 736Use the specified colour for the scrollbar [default #B2B2B2].
687 737
693=item B<borderColor:> I<colour> 743=item B<borderColor:> I<colour>
694 744
695The colour of the border around the text area and between the scrollbar 745The colour of the border around the text area and between the scrollbar
696and the text. 746and the text.
697 747
698=item B<backgroundPixmap:> I<file[;geom[:op1][:op2][...]]> 748=item B<backgroundPixmap:> I<file[;oplist]>
699 749
700Use the specified image file for the background and also optionally 750Use the specified image file for the background and also
701specify its scaling with a geometry string B<WxH+X+Y>, 751optionally specify a colon separated list of operations to modify it.
702in which B<"W" / "H"> specify the horizontal/vertical scale (percent),
703and B<"X" / "Y"> locate the image centre (percent).
704A scale of 0 displays the image with tiling. A scale of 1 displays the
705image without any scaling. A scale of 2 to 9 specifies an integer
706number of images in that direction. No image will be magnified beyond
70710 times its original size. The maximum permitted scale is 1000.
708Additional operations can be specified after colon B<:op1:op2...>.
709Supported operations are: 752Supported operations are:
710 B<"tile"> - force background image to be tiled and not scaled. Equivalent to 0x0,
711 B<"propscale"> - will scale image keeping proportions,
712 B<"auto"> - will scale image to match window size. Equivalent to 100x100;
713 B<"hscale"> - will scale image horizontally to the window size;
714 B<"vscale"> - will scale image vertically to the window size;
715 B<"scale"> - will scale image to match window size;
716 B<"root"> - will tile image as if it was a root window background, auto-adjusting
717 whenever terminal window moves.
718 753
754=over 4
755
756=item B<WxH+X+Y>
757
758sets scale and position. B<"W" / "H"> specify the horizontal/vertical
759scale (percent), and B<"X" / "Y"> locate the image centre (percent). A
760scale of 0 disables scaling. The maximum permitted scale is 1000.
761
762=item B<op=tile>
763
764enables tiling
765
766=item B<op=pscale>
767
768enables proportional scaling
769
770=item B<op=root>
771
772use the position of the terminal window relative to the root window as
773the image offset, simulating a root window background
774
775=back
776
777The default scale and position setting is C<100x100+50+50>.
778Alternatively, a predefined set of templates can be used to achieve
779the most common setups:
780
781=over 4
782
783=item B<style=tiled>
784
785the image is tiled with no scaling. Equivalent to 0x0+0+0:op=tile
786
787=item B<style=aspect-stretched>
788
789the image is scaled to fill the whole window maintaining the aspect
790ratio and centered. Equivalent to 100x100+50+50:op=pscale
791
792=item B<style=stretched>
793
794the image is scaled to fill the whole window. Equivalent to 100x100
795
796=item B<style=centered>
797
798the image is centered with no scaling. Equivalent to 0x0+50+50
799
800=item B<style=root-tiled>
801
802the image is tiled with no scaling and using 'root' positioning.
803Equivalent to 0x0:op=tile:op=root
804
805=back
806
807If multiple templates are specified the last one wins. Note that a
808template overrides all the scale, position and operations settings.
809
719If used in conjunction with B<-tr> option - specified pixmap will be 810If used in conjunction with B<-tr> option, the specified pixmap will be
720blended over transparency image using either alpha-blending, or any 811blended over the transparent background using alpha-blending. If I<afterimage>
721other blending type, specified with B<-blt "type"> option. 812support has been compiled in it is possible to choose other blending
722[default 0x0+50+50] 813types with B<-blt "type"> option.
723 814
724=item B<path:> I<path> 815=item B<path:> I<path>
725 816
726Specify the colon-delimited search path for finding background image files. 817Specify the colon-delimited search path for finding background image files.
727 818
754it is named first) and thus defines the character cell grid to be 9 pixels 845it is named first) and thus defines the character cell grid to be 9 pixels
755wide and 15 pixels high. 846wide and 15 pixels high.
756 847
757The second font is just used to add additional unicode characters not in 848The second font is just used to add additional unicode characters not in
758the base font, likewise the third, which is unfortunately non-bold, but 849the base font, likewise the third, which is unfortunately non-bold, but
759the bold version of the font does contain less characters, so this is a 850the bold version of the font does contain fewer characters, so this is a
760useful supplement. 851useful supplement.
761 852
762The third font is an Xft font with aliasing turned off, and the characters 853The third font is an Xft font with aliasing turned off, and the characters
763are limited to the B<JIS 0208> codeset (i.e. japanese kanji). The font 854are limited to the B<JIS 0208> codeset (i.e. japanese kanji). The font
764contains other characters, but we are not interested in them. 855contains other characters, but we are not interested in them.
788text font will being used for the given style. 879text font will being used for the given style.
789 880
790=item B<intensityStyles:> I<boolean> 881=item B<intensityStyles:> I<boolean>
791 882
792When font styles are not enabled, or this option is enabled (B<True>, 883When font styles are not enabled, or this option is enabled (B<True>,
793option B<-is>, the default), bold and italic font styles imply high 884option B<-is>, the default), bold/blink font styles imply high
794intensity foreground/background colours. Disabling this option (B<False>, 885intensity foreground/background colours. Disabling this option (B<False>,
795option B<+is>) disables this behaviour, the high intensity colours are not 886option B<+is>) disables this behaviour, the high intensity colours are not
796reachable. 887reachable.
797 888
798=item B<selectstyle:> I<mode>
799
800Set mouse selection style to B<old> which is 2.20, B<oldword> which
801is xterm style with 2.20 old word selection, or anything else which
802gives xterm style selection. Only effective when the original (non-perl)
803selection code is in use.
804
805=item B<scrollstyle:> I<mode>
806
807Set scrollbar style to B<rxvt>, B<plain>, B<next> or B<xterm>. B<plain> is
808the author's favourite.
809
810=item B<title:> I<string> 889=item B<title:> I<string>
811 890
812Set window title string, the default title is the command-line 891Set window title string, the default title is the command-line
813specified after the B<-e> option, if any, otherwise the application 892specified after the B<-e> option, if any, otherwise the application
814name; option B<-title>. 893name; option B<-title>.
827=item B<urgentOnBell:> I<boolean> 906=item B<urgentOnBell:> I<boolean>
828 907
829B<True>: set the urgency hint for the wm on receipt of a bell character. 908B<True>: set the urgency hint for the wm on receipt of a bell character.
830B<False>: do not set the urgency hint [default]. 909B<False>: do not set the urgency hint [default].
831 910
911@@RXVT_NAME@@ resets the urgency hint on every focus change.
912
832=item B<visualBell:> I<boolean> 913=item B<visualBell:> I<boolean>
833 914
834B<True>: use visual bell on receipt of a bell character; option B<-vb>. 915B<True>: use visual bell on receipt of a bell character; option B<-vb>.
835B<False>: no visual bell [default]; option B<+vb>. 916B<False>: no visual bell [default]; option B<+vb>.
836 917
859 URxvt.print-pipe: cat > $(TMPDIR=$HOME mktemp urxvt.XXXXXX) 940 URxvt.print-pipe: cat > $(TMPDIR=$HOME mktemp urxvt.XXXXXX)
860 941
861This creates a new file in your home directory with the screen contents 942This creates a new file in your home directory with the screen contents
862every time you hit C<Print>. 943every time you hit C<Print>.
863 944
945=item B<scrollstyle:> I<mode>
946
947Set scrollbar style to B<rxvt>, B<plain>, B<next> or B<xterm>. B<plain> is
948the author's favourite.
949
950=item B<thickness:> I<number>
951
952Set the scrollbar width in pixels.
953
864=item B<scrollBar:> I<boolean> 954=item B<scrollBar:> I<boolean>
865 955
866B<True>: enable the scrollbar [default]; option B<-sb>. B<False>: 956B<True>: enable the scrollbar [default]; option B<-sb>. B<False>:
867disable the scrollbar; option B<+sb>. 957disable the scrollbar; option B<+sb>.
868 958
887B<False>: do not scroll to bottom when tty receives output; option 977B<False>: do not scroll to bottom when tty receives output; option
888B<+si>. 978B<+si>.
889 979
890=item B<scrollWithBuffer:> I<boolean> 980=item B<scrollWithBuffer:> I<boolean>
891 981
892B<True>: scroll with scrollback buffer when tty receives new lines (and 982B<True>: scroll with scrollback buffer when tty receives new lines (i.e.
893B<scrollTtyOutput> is False); option B<-sw>. B<False>: do not scroll 983try to show the same lines) and B<scrollTtyOutput> is False; option
894with scrollback buffer when tty receives new lines; option B<+sw>. 984B<-sw>. B<False>: do not scroll with scrollback buffer when tty receives
985new lines; option B<+sw>.
895 986
896=item B<scrollTtyKeypress:> I<boolean> 987=item B<scrollTtyKeypress:> I<boolean>
897 988
898B<True>: scroll to bottom when a non-special key is pressed. Special keys 989B<True>: scroll to bottom when a non-special key is pressed. Special keys
899are those which are intercepted by rxvt-unicode for special handling and 990are those which are intercepted by rxvt-unicode for special handling and
955=item B<cursorBlink:> I<boolean> 1046=item B<cursorBlink:> I<boolean>
956 1047
957B<True>: blink the cursor. B<False>: do not blink the cursor [default]; 1048B<True>: blink the cursor. B<False>: do not blink the cursor [default];
958option B<-bc>. 1049option B<-bc>.
959 1050
1051=item B<cursorUnderline:> I<boolean>
1052
1053B<True>: Make the cursor underlined. B<False>: Make the cursor a box [default];
1054option B<-uc>.
1055
960=item B<pointerBlank:> I<boolean> 1056=item B<pointerBlank:> I<boolean>
961 1057
962B<True>: blank the pointer when a key is pressed or after a set number 1058B<True>: blank the pointer when a key is pressed or after a set number
963of seconds of inactivity. B<False>: the pointer is always visible 1059of seconds of inactivity. B<False>: the pointer is always visible
964[default]. 1060[default].
977large number (e.g. C<987654321>) to effectively disable the timeout. 1073large number (e.g. C<987654321>) to effectively disable the timeout.
978 1074
979=item B<backspacekey:> I<string> 1075=item B<backspacekey:> I<string>
980 1076
981The string to send when the backspace key is pressed. If set to B<DEC> 1077The string to send when the backspace key is pressed. If set to B<DEC>
982or unset it will send B<Delete> (code 127) or, if shifted, B<Backspace> 1078or unset it will send B<Delete> (code 127) or, with control, B<Backspace>
983(code 8) - which can be reversed with the appropriate DEC private mode 1079(code 8) - which can be reversed with the appropriate DEC private mode
984escape sequence. 1080escape sequence.
985 1081
986=item B<deletekey:> I<string> 1082=item B<deletekey:> I<string>
987 1083
1000will be created). In this mode, characters outside ISO-8859-1 can be used. 1096will be created). In this mode, characters outside ISO-8859-1 can be used.
1001 1097
1002When the selection extension is not used, only ISO-8859-1 characters can 1098When the selection extension is not used, only ISO-8859-1 characters can
1003be used. If not specified, the built-in default is used: 1099be used. If not specified, the built-in default is used:
1004 1100
1005B<< BACKSLASH `"'&()*,;<=>?@[]{|} >> 1101B<< BACKSLASH `"'&()*,;<=>?@[]^{|} >>
1006 1102
1007=item B<preeditType:> I<style> 1103=item B<preeditType:> I<style>
1008 1104
1009B<OverTheSpot>, B<OffTheSpot>, B<Root>; option B<-pt>. 1105B<OverTheSpot>, B<OffTheSpot>, B<Root>; option B<-pt>.
1010 1106
1066 1162
1067=item B<secondaryScroll:> I<boolean> 1163=item B<secondaryScroll:> I<boolean>
1068 1164
1069Turn on/off secondary screen scroll (default enabled). If this 1165Turn on/off secondary screen scroll (default enabled). If this
1070option is enabled, scrolls on the secondary screen will change the 1166option is enabled, scrolls on the secondary screen will change the
1071scrollback buffer and switching to/from the secondary screen will 1167scrollback buffer and, when secondaryScreen is off, switching
1072instead scroll the screen up. 1168to/from the secondary screen will instead scroll the screen up.
1073 1169
1074=item B<hold>: I<boolean> 1170=item B<hold>: I<boolean>
1075 1171
1076Turn on/off hold window after exit support. If enabled, @@RXVT_NAME@@ 1172Turn on/off hold window after exit support. If enabled, @@RXVT_NAME@@
1077will not immediately destroy its window when the program executed within 1173will not immediately destroy its window when the program executed within
1078it exits. Instead, it will wait till it is being killed or closed by the 1174it exits. Instead, it will wait till it is being killed or closed by the
1079user. 1175user.
1176
1177=item B<chdir>: I<path>
1178
1179Sets the working directory for the shell (or the command specified via
1180B<-e>). The I<path> must be an absolute path and it must exist for
1181@@RXVT_NAME@@ to start. If it isn't specified then the current working
1182directory will be used; option B<-cd>.
1080 1183
1081=item B<keysym.>I<sym>: I<string> 1184=item B<keysym.>I<sym>: I<string>
1082 1185
1083Compile I<frills>: Associate I<string> with keysym I<sym>. The 1186Compile I<frills>: Associate I<string> with keysym I<sym>. The
1084intervening resource name B<keysym.> cannot be omitted. 1187intervening resource name B<keysym.> cannot be omitted.
1099omitting the prefix B<XK_>. Alternatively you can specify I<key> by its hex 1202omitting the prefix B<XK_>. Alternatively you can specify I<key> by its hex
1100keysym value (B<0x0000 - 0xFFFF>). Note that the lookup of I<sym>s is not 1203keysym value (B<0x0000 - 0xFFFF>). Note that the lookup of I<sym>s is not
1101performed in an exact manner; however, the closest match is assured. 1204performed in an exact manner; however, the closest match is assured.
1102 1205
1103I<string> may contain escape values (C<\n>: newline, C<\000>: octal 1206I<string> may contain escape values (C<\n>: newline, C<\000>: octal
1104number), see RESOURCES in C<man 7 X> for futher details. 1207number), see RESOURCES in C<man 7 X> for further details.
1105 1208
1106You can define a range of keysyms in one shot by providing a I<string> 1209You can define a range of keysyms in one shot by providing a I<string>
1107with pattern B<list/PREFIX/MIDDLE/SUFFIX>, where the delimiter `/' 1210with pattern B<list/PREFIX/MIDDLE/SUFFIX>, where the delimiter `/'
1108should be a character not used by the strings. 1211should be a character not used by the strings.
1109 1212
1110Its usage can be demonstrated by an example: 1213Its usage can be demonstrated by an example:
1111 1214
1112 URxvt.keysym.M-C-0x61: list|\033<M-C-|abc|> 1215 URxvt.keysym.M-C-0x61: list|\033<|abc|>
1113 1216
1114The above line is equivalent to the following three lines: 1217The above line is equivalent to the following three lines:
1115 1218
1116 URxvt.keysym.Meta-Control-0x61: \033<M-C-a> 1219 URxvt.keysym.Meta-Control-0x61: \033<a>
1117 URxvt.keysym.Meta-Control-0x62: \033<M-C-b> 1220 URxvt.keysym.Meta-Control-0x62: \033<b>
1118 URxvt.keysym.Meta-Control-0x63: \033<M-C-c> 1221 URxvt.keysym.Meta-Control-0x63: \033<c>
1119 1222
1120If I<string> takes the form of C<command:STRING>, the specified B<STRING> 1223If I<string> takes the form of C<command:STRING>, the specified B<STRING>
1121is interpreted and executed as @@RXVT_NAME@@'s control sequence. For 1224is interpreted and executed as @@RXVT_NAME@@'s control sequence. For
1122example the following means "change the current locale to C<zh_CN.GBK> 1225example the following means "change the current locale to C<zh_CN.GBK>
1123when Control-Meta-c is being pressed": 1226when Control-Meta-c is being pressed":
1124 1227
1125 URxvt.keysym.M-C-c: command:\033]701;zh_CN.GBK\007 1228 URxvt.keysym.M-C-c: command:\033]701;zh_CN.GBK\007
1126 1229
1127If I<string> takes the form C<perl:STRING>, then the specified B<STRING> 1230If I<string> takes the form C<perl:STRING>, then the specified B<STRING>
1128is passed to the C<on_keyboard_command> perl handler. See the @@RXVT_NAME@@perl(3) 1231is passed to the C<on_user_command> perl handler. See the @@RXVT_NAME@@perl(3)
1129manpage. For example, the F<selection> extension (activated via 1232manpage. For example, the F<selection> extension (activated via
1130C<@@RXVT_NAME@@ -pe selection>) listens for C<selection:rot13> events: 1233C<@@RXVT_NAME@@ -pe selection>) listens for C<selection:rot13> events:
1131 1234
1132 URxvt.keysym.M-C-c: perl:selection:rot13 1235 URxvt.keysym.M-C-c: perl:selection:rot13
1133 1236
1134Due the the large number of modifier combinations, a defined key mapping 1237Due the the large number of modifier combinations, a defined key mapping
1135will match if at I<at least> the specified identifiers are being set, and 1238will match if I<at least> the specified identifiers are being set, and
1136no other key mappings with those and more bits are being defined. That 1239no other key mappings with those and more bits are being defined. That
1137means that defining a key map for C<a> will automatically provide 1240means that defining a key map for C<a> will automatically provide
1138definitions for C<Meta-a>, C<Shift-a> and so on, unless some of those are defined 1241definitions for C<Meta-a>, C<Shift-a> and so on, unless some of those are defined
1139mappings themselves. 1242mappings themselves.
1140 1243
1191all instances, while B<perl-ext> is used for specific instances. 1294all instances, while B<perl-ext> is used for specific instances.
1192 1295
1193=item B<perl-eval>: I<string> 1296=item B<perl-eval>: I<string>
1194 1297
1195Perl code to be evaluated when all extensions have been registered. See 1298Perl code to be evaluated when all extensions have been registered. See
1196the @@RXVT_NAME@@perl(3) manpage. Due to security reasons, this resource 1299the @@RXVT_NAME@@perl(3) manpage.
1197will be ignored when running setuid/setgid.
1198 1300
1199=item B<perl-lib>: I<path> 1301=item B<perl-lib>: I<path>
1200 1302
1201Colon-separated list of additional directories that hold extension 1303Colon-separated list of additional directories that hold extension
1202scripts. When looking for extensions specified by the C<perl> resource, 1304scripts. When looking for extensions specified by the C<perl> resource,
1203@@RXVT_NAME@@ will first look in these directories and then in 1305@@RXVT_NAME@@ will first look in these directories and then in
1204F<@@RXVT_LIBDIR@@/urxvt/perl/>. Due to security reasons, this resource 1306F<@@RXVT_LIBDIR@@/urxvt/perl/>.
1205will be ignored when running setuid/setgid.
1206 1307
1207See the @@RXVT_NAME@@perl(3) manpage. 1308See the @@RXVT_NAME@@perl(3) manpage.
1208 1309
1209=item B<< selection.pattern-I<idx> >>: I<perl-regex> 1310=item B<< selection.pattern-I<idx> >>: I<perl-regex>
1210 1311
1232 1333
1233=item B<override-redirect>: I<boolean> 1334=item B<override-redirect>: I<boolean>
1234 1335
1235Compile I<frills>: Sets override-redirect for the terminal window, making 1336Compile I<frills>: Sets override-redirect for the terminal window, making
1236it almost invisible to window managers; option B<-override-redirect>. 1337it almost invisible to window managers; option B<-override-redirect>.
1338
1339=item B<iso14755:> I<boolean>
1340
1341Turn on/off ISO 14755 (default enabled).
1237 1342
1238=item B<iso14755_52:> I<boolean> 1343=item B<iso14755_52:> I<boolean>
1239 1344
1240Turn on/off ISO 14755 5.2 mode (default enabled). 1345Turn on/off ISO 14755 5.2 mode (default enabled).
1241 1346
1384B<@@RXVT_NAME@@> tries to write an entry into the I<utmp>(5) file so that 1489B<@@RXVT_NAME@@> tries to write an entry into the I<utmp>(5) file so that
1385it can be seen via the I<who(1)> command, and can accept messages. To 1490it can be seen via the I<who(1)> command, and can accept messages. To
1386allow this feature, B<@@RXVT_NAME@@> may need to be installed setuid root 1491allow this feature, B<@@RXVT_NAME@@> may need to be installed setuid root
1387on some systems or setgid to root or to some other group on others. 1492on some systems or setgid to root or to some other group on others.
1388 1493
1389=head1 COLORS AND GRAPHICS 1494=head1 COLOURS AND GRAPHICS
1390 1495
1391In addition to the default foreground and background colours, 1496In addition to the default foreground and background colours,
1392B<@@RXVT_NAME@@> can display up to 16 colours (8 ANSI colours plus 1497B<@@RXVT_NAME@@> can display up to 88/256 colours: 8 ANSI colours plus
1393high-intensity bold/blink versions of the same). Here is a list of the 1498high-intensity (potentially bold/blink) versions of the same, and 72 (or
1394colours with their names. 1499240 in 256 colour mode) colours arranged in an 4x4x4 (or 6x6x6) colour RGB
1500cube plus a 8 (24) colour greyscale ramp.
1501
1502Here is a list of the ANSI colours with their names.
1395 1503
1396=begin table 1504=begin table
1397 1505
1398 B<color0> (black) = Black 1506 B<color0> (black) = Black
1399 B<color1> (red) = Red3 1507 B<color1> (red) = Red3
1419It is also possible to specify the colour values of B<foreground>, 1527It is also possible to specify the colour values of B<foreground>,
1420B<background>, B<cursorColor>, B<cursorColor2>, B<colorBD>, B<colorUL> as 1528B<background>, B<cursorColor>, B<cursorColor2>, B<colorBD>, B<colorUL> as
1421a number 0-15, as a convenient shorthand to reference the colour name of 1529a number 0-15, as a convenient shorthand to reference the colour name of
1422color0-color15. 1530color0-color15.
1423 1531
1424In addition to the colours defined above, @@RXVT_NAME@@ offers an 1532The following text gives values for the standard 88 colour mode (and
1425additional 72 colours. The first 64 of those (with indices 16 to 79) 1533values for the 256 colour mode in parentheses).
1426consist of a 4*4*4 RGB colour cube (i.e. I<index = r * 16 + g * 4 + b +
142716>), followed by 8 additional shades of gray (with indices 80 to 87).
1428 1534
1535The RGB cube uses indices 16..79 (16..231) using the following formulas:
1536
1537 index_88 = (r * 4 + g) * 4 + b + 16 # r, g, b = 0..3
1538 index_256 = (r * 16 + g) * 16 + b + 16 # r, g, b = 0..15
1539
1540The grayscale ramp uses indices 80..87 (232..239), from 10% to 90% in 10%
1541steps (1/26 to 25/26 in 1/26 steps) - black and white are already part of
1542the RGB cube.
1543
1429Together, all those colours implement the 88 colour xterm colours. Only 1544Together, all those colours implement the 88 (256) colour xterm
1430the first 16 can be changed using resources currently, the rest can only 1545colours. Only the first 16 can be changed using resources currently, the
1431be changed via command sequences ("escape codes"). 1546rest can only be changed via command sequences ("escape codes").
1547
1548Applications are advised to use terminfo or command sequences to discover
1549number and RGB values of all colours (yes, you can query this...).
1432 1550
1433Note that B<-rv> (B<"reverseVideo: True">) simulates reverse video by 1551Note that B<-rv> (B<"reverseVideo: True">) simulates reverse video by
1434always swapping the foreground/background colours. This is in contrast to 1552always swapping the foreground/background colours. This is in contrast to
1435I<xterm>(1) where the colours are only swapped if they have not otherwise 1553I<xterm>(1) where the colours are only swapped if they have not otherwise
1436been specified. For example, 1554been specified. For example,
1437 1555
1438=over 4
1439
1440=item B<@@RXVT_NAME@@ -fg Black -bg White -rv> 1556 @@RXVT_NAME@@ -fg Black -bg White -rv
1441 1557
1442would yield White on Black, while on I<xterm>(1) it would yield Black 1558would yield White on Black, while on I<xterm>(1) it would yield Black on
1443on White. 1559White.
1444
1445=back
1446 1560
1447=head2 ALPHA CHANNEL SUPPORT 1561=head2 ALPHA CHANNEL SUPPORT
1448 1562
1449If Xft support has been compiled in and as long as Xft/Xrender/X don't get 1563If Xft support has been compiled in and as long as Xft/Xrender/X don't get
1450their act together, rxvt-unicode will support C<rgba:rrrr/gggg/bbbb/aaaa> 1564their act together, rxvt-unicode will do it's own alpha channel management:
1451(recommended, but B<MUST> have 4 digits/component) colour specifications, 1565
1452in addition to the ones provided by X, where the additional A component 1566You can prefix any colour with an opaqueness percentage enclosed in
1567brackets, i.e. C<[percent]>, where C<percent> is a decimal percentage
1568(0-100) that specifies the opacity of the colour, where C<0> is completely
1569transparent and C<100> is completely opaque. For example, C<[50]red> is a
1570half-transparent red, while C<[95]#00ff00> is an almost opaque green. This
1571is the recommended format to specify transparency values, and works with
1572all ways to specify a colour.
1573
1574For complete control, rxvt-unicode also supports
1575C<rgba:rrrr/gggg/bbbb/aaaa> (exactly four hex digits/component) colour
1576specifications, where the additional C<aaaa> component specifies opacity
1453specifies opacity (alpha) values. The minimum value of C<0> is completely 1577(alpha) values. The minimum value of C<0000> is completely transparent,
1454transparent). You can also prefix any color with C<[percent]>, where 1578while C<ffff> is completely opaque). The two example colours from
1455C<percent> is a decimal percentage (0-100) that specifies the opacity of 1579earlier could also be specified as C<rgba:ff00/0000/0000/8000> and
1456the color, where C<0> is completely transparent and C<100> is completelxy 1580C<rgba:0000/ff00/0000/f332>.
1457opaque.
1458 1581
1459You probably need to specify B<"-depth 32">, too, and have the luck that 1582You probably need to specify B<"-depth 32">, too, to force a visual with
1460your X-server uses ARGB pixel layout, as X is far from just supporting 1583alpha channels, and have the luck that your X-server uses ARGB pixel
1461ARGB visuals out of the box, and rxvt-unicode just fudges around. 1584layout, as X is far from just supporting ARGB visuals out of the box, and
1585rxvt-unicode just fudges around.
1462 1586
1463For example, the following selects an almost completely transparent red 1587For example, the following selects an almost completely transparent black
1464background, and an almost opaque pink foreground: 1588background, and an almost opaque pink foreground:
1465 1589
1466 @@RXVT_NAME@@ -depth 32 -bg rgba:0000/0000/0000/aaaa -fg "[80]pink" 1590 @@RXVT_NAME@@ -depth 32 -bg rgba:0000/0000/0000/4444 -fg "[80]pink"
1467 1591
1468I<Please note that transparency of any kind if completely unsupported by 1592When not using a background image, then the interpretation of the
1469the author. Don't bug him with installation questions!> 1593alpha channel is up to your compositing manager (most interpret it as
1594transparency of course).
1595
1596When using a background pixmap or pseudo-transparency, then the background
1597colour will always behave as if it were completely transparent (so the
1598background image shows instead), regardless of how it was specified, while
1599other colours will either be transparent as specified (the background
1600image will show through) on servers supporting the RENDER extension, or
1601fully opaque on servers not supporting the RENDER EXTENSION.
1602
1603Please note that due to bugs in Xft, specifying alpha values might result
1604in garbage being displayed when the X-server does not support the RENDER
1605extension.
1470 1606
1471=head1 ENVIRONMENT 1607=head1 ENVIRONMENT
1472 1608
1473B<@@RXVT_NAME@@> sets and/or uses the following environment variables: 1609B<@@RXVT_NAME@@> sets and/or uses the following environment variables:
1474 1610
1508C<--with-terminfo=PATH>. 1644C<--with-terminfo=PATH>.
1509 1645
1510=item B<DISPLAY> 1646=item B<DISPLAY>
1511 1647
1512Used by @@RXVT_NAME@@ to connect to the display and set to the correct 1648Used by @@RXVT_NAME@@ to connect to the display and set to the correct
1513display in its child processes. 1649display in its child processes if C<-display> isn't used to override. It
1650defaults to C<:0> if it doesn't exist.
1514 1651
1515=item B<SHELL> 1652=item B<SHELL>
1516 1653
1517The shell to be used for command execution, defaults to C</bin/sh>. 1654The shell to be used for command execution, defaults to C</bin/sh>.
1518 1655
1519=item B<RXVT_SOCKET> 1656=item B<RXVT_SOCKET>
1520 1657
1521The unix domain socket path used by @@RXVT_NAME@@c(1) and 1658The unix domain socket path used by @@RXVT_NAME@@c(1) and
1522@@RXVT_NAME@@d(1). 1659@@RXVT_NAME@@d(1).
1523 1660
1524Default F<<< $HOME/.rxvt-unicode-I<< <nodename >> >>>. 1661Default F<<< $HOME/.rxvt-unicode-I<< <nodename> >> >>>.
1525 1662
1526=item B<HOME> 1663=item B<HOME>
1527 1664
1528Used to locate the default directory for the unix domain socket for 1665Used to locate the default directory for the unix domain socket for
1529daemon communications and to locate various resource files (such as 1666daemon communications and to locate various resource files (such as
1530C<.Xdefaults>) 1667C<.Xdefaults>)
1531 1668
1532=item B<XAPPLRESDIR> 1669=item B<XAPPLRESDIR>
1533 1670
1534Directory where various X resource files are being located. 1671Directory where application-specific X resource files are located.
1535 1672
1536=item B<XENVIRONMENT> 1673=item B<XENVIRONMENT>
1537 1674
1538If set and accessible, gives the name of a X resource file to be loaded by 1675If set and accessible, gives the name of a X resource file to be loaded by
1539@@RXVT_NAME@@. 1676@@RXVT_NAME@@.
1544 1681
1545=over 4 1682=over 4
1546 1683
1547=item B</usr/lib/X11/rgb.txt> 1684=item B</usr/lib/X11/rgb.txt>
1548 1685
1549Color names. 1686Colour names.
1550 1687
1551=back 1688=back
1552 1689
1553=head1 SEE ALSO 1690=head1 SEE ALSO
1554 1691
1605 1742
1606Project Coordinator (Changes 1.0 -) 1743Project Coordinator (Changes 1.0 -)
1607 1744
1608=item Emanuele Giaquinta L<< <e.giaquinta@glauco.it> >> 1745=item Emanuele Giaquinta L<< <e.giaquinta@glauco.it> >>
1609 1746
1610Pty/tty/utmp/wtmp rewrite, lots of random hacking and bugfixing. 1747pty/utmp code rewrite, image code improvements, many random hacks and bugfixes.
1611 1748
1612=back 1749=back
1613 1750

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