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Revision 1.156 by ayin, Sun Dec 30 22:43:40 2007 UTC vs.
Revision 1.179 by root, Sun May 23 01:06:47 2010 UTC

92 92
93Print out a message describing available options. 93Print out a message describing available options.
94 94
95=item B<-display> I<displayname> 95=item B<-display> I<displayname>
96 96
97Attempt 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>
98respected). In the absence of this option, the display specified by the 98is still respected. but deprecated). In the absence of this option, the
99B<DISPLAY> environment variable is used. 99display specified by the B<DISPLAY> environment variable is used.
100 100
101=item B<-depth> I<bitdepth> 101=item B<-depth> I<bitdepth>
102 102
103Compile 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;
104resource B<depth>. 104resource B<depth>.
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]
105 110
106=item B<-geometry> I<geom> 111=item B<-geometry> I<geom>
107 112
108Window geometry (B<-g> still respected); resource B<geometry>. 113Window geometry (B<-g> still respected); resource B<geometry>.
109 114
147non-tiled backgrounds, currently. See also the B<-sh> option that can be 152non-tiled backgrounds, currently. See also the B<-sh> option that can be
148used to brighten or darken the image in addition to tinting it. 153used to brighten or darken the image in addition to tinting it.
149Please note that certain tint colours can be applied on the server-side, 154Please note that certain tint colours can be applied on the server-side,
150thus yielding performance gain of two orders of magnitude. These colours are: 155thus yielding performance gain of two orders of magnitude. These colours are:
151blue, red, green, cyan, magenta, yellow, and those close to them. Also 156blue, red, green, cyan, magenta, yellow, and those close to them. Also
152pure black and pure white colors essentially mean no tinting; resource 157pure black and pure white colours essentially mean no tinting; resource
153I<tintColor>. Example: 158I<tintColor>. Example:
154 159
155 @@RXVT_NAME@@ -tr -tint blue -sh 40 160 @@RXVT_NAME@@ -tr -tint blue -sh 40
156 161
157=item B<-sh> I<number> 162=item B<-sh> I<number>
163=item B<-blt> I<string> 168=item B<-blt> I<string>
164 169
165Specify background blending type. If background pixmap is specified 170Specify background blending type. If background pixmap is specified
166at the same time as transparency - such pixmap will be blended over 171at the same time as transparency - such pixmap will be blended over
167transparency image, using method specified. Supported values are : 172transparency image, using method specified. Supported values are :
168B<add>, B<alphablend>, B<allanon> - color values averaging, B<colorize>, 173B<add>, B<alphablend>, B<allanon> - colour values averaging, B<colorize>,
169B<darken>, B<diff>, B<dissipate>, B<hue>, B<lighten>, B<overlay>, 174B<darken>, B<diff>, B<dissipate>, B<hue>, B<lighten>, B<overlay>,
170B<saturate>, B<screen>, B<sub>, B<tint>, B<value>. The default is 175B<saturate>, B<screen>, B<sub>, B<tint>, B<value>. The default is
171alpha-blending. Compile I<afterimage>; resource I<blendType>. 176alpha-blending. Compile I<afterimage>; resource I<blendType>.
172 177
173=item B<-blr> I<HxV> 178=item B<-blr> I<HxV>
177horizontal radii are considered to be the same. Setting one of the 182horizontal radii are considered to be the same. Setting one of the
178radii to 1 and another to a large number creates interesting effects 183radii to 1 and another to a large number creates interesting effects
179on some backgrounds. Maximum radius value is 128. Compile I<afterimage>; 184on some backgrounds. Maximum radius value is 128. Compile I<afterimage>;
180resource I<blurRadius>. 185resource I<blurRadius>.
181 186
187=item B<-icon> I<file>
188
189Compile I<afterimage>: Use the specified image as application icon. This
190is used by many window managers, taskbars and pagers to represent the
191application window; resource I<iconFile>.
192
182=item B<-bg> I<colour> 193=item B<-bg> I<colour>
183 194
184Window background colour; resource B<background>. 195Window background colour; resource B<background>.
185 196
186=item B<-fg> I<colour> 197=item B<-fg> I<colour>
273 284
274=item B<-sb>|B<+sb> 285=item B<-sb>|B<+sb>
275 286
276Turn on/off scrollbar; resource B<scrollBar>. 287Turn on/off scrollbar; resource B<scrollBar>.
277 288
289=item B<-sr>|B<+sr>
290
291Put scrollbar on right/left; resource B<scrollBar_right>.
292
293=item B<-st>|B<+st>
294
295Display rxvt (non XTerm/NeXT) scrollbar without/with a trough;
296resource B<scrollBar_floating>.
297
278=item B<-si>|B<+si> 298=item B<-si>|B<+si>
279 299
280Turn on/off scroll-to-bottom on TTY output inhibit; resource 300Turn on/off scroll-to-bottom on TTY output inhibit; resource
281B<scrollTtyOutput> has opposite effect. 301B<scrollTtyOutput> has opposite effect.
282 302
288=item B<-sw>|B<+sw> 308=item B<-sw>|B<+sw>
289 309
290Turn on/off scrolling with the scrollback buffer as new lines appear. 310Turn on/off scrolling with the scrollback buffer as new lines appear.
291This only takes effect if B<-si> is also given; resource 311This only takes effect if B<-si> is also given; resource
292B<scrollWithBuffer>. 312B<scrollWithBuffer>.
293
294=item B<-sr>|B<+sr>
295
296Put scrollbar on right/left; resource B<scrollBar_right>.
297
298=item B<-st>|B<+st>
299
300Display rxvt (non XTerm/NeXT) scrollbar without/with a trough;
301resource B<scrollBar_floating>.
302 313
303=item B<-ptab>|B<+ptab> 314=item B<-ptab>|B<+ptab>
304 315
305If enabled (default), "Horizontal Tab" characters are being stored as 316If enabled (default), "Horizontal Tab" characters are being stored as
306actual wide characters in the screen buffer, which makes it possible to 317actual wide characters in the screen buffer, which makes it possible to
310 321
311=item B<-bc>|B<+bc> 322=item B<-bc>|B<+bc>
312 323
313Blink the cursor; resource B<cursorBlink>. 324Blink the cursor; resource B<cursorBlink>.
314 325
326=item B<-uc>|B<+uc>
327
328Make the cursor underlined; resource B<cursorUnderline>.
329
315=item B<-iconic> 330=item B<-iconic>
316 331
317Start iconified, if the window manager supports that option. 332Start iconified, if the window manager supports that option.
318Alternative form is B<-ic>. 333Alternative form is B<-ic>.
319 334
335 350
336=item B<-bl> 351=item B<-bl>
337 352
338Compile I<frills>: Set MWM hints to request a borderless window, i.e. 353Compile I<frills>: Set MWM hints to request a borderless window, i.e.
339if honoured by the WM, the rxvt-unicode window will not have window 354if honoured by the WM, the rxvt-unicode window will not have window
340decorations; resource B<borderLess>. 355decorations; resource B<borderLess>. If the window manager does not
356support MWM hints (e.g. kwin), enables override-redirect mode.
341 357
342=item B<-override-redirect> 358=item B<-override-redirect>
343 359
344Compile I<frills>: Sets override-redirect on the window; resource 360Compile I<frills>: Sets override-redirect on the window; resource
345B<override-redirect>. 361B<override-redirect>.
354=item B<-lsp> I<number> 370=item B<-lsp> I<number>
355 371
356Compile I<frills>: Lines (pixel height) to insert between each row of 372Compile I<frills>: Lines (pixel height) to insert between each row of
357the display. Useful to work around font rendering problems; resource 373the display. Useful to work around font rendering problems; resource
358B<lineSpace>. 374B<lineSpace>.
375
376=item B<-letsp> I<number>
377
378Compile I<frills>: Amount to adjust the computed character width by
379to control overall letter spacing. Negative values will tighten up the
380letter spacing, positive values will space letters out more. Useful to
381work around odd font metrics; resource B<letterSpace>.
359 382
360=item B<-tn> I<termname> 383=item B<-tn> I<termname>
361 384
362This option specifies the name of the terminal type to be set in the 385This option specifies the name of the terminal type to be set in the
363B<TERM> environment variable. This terminal type must exist in the 386B<TERM> environment variable. This terminal type must exist in the
449 472
450Turn on/off hold window after exit support. If enabled, @@RXVT_NAME@@ 473Turn on/off hold window after exit support. If enabled, @@RXVT_NAME@@
451will not immediately destroy its window when the program executed within 474will not immediately destroy its window when the program executed within
452it exits. Instead, it will wait till it is being killed or closed by the 475it exits. Instead, it will wait till it is being killed or closed by the
453user; resource B<hold>. 476user; resource B<hold>.
477
478=item B<-cd> I<path>
479
480Sets the working directory for the shell (or the command specified via
481B<-e>). The I<path> must be an absolute path and it must exist for
482@@RXVT_NAME@@ to start; resource B<chdir>.
454 483
455=item B<-xrm> I<string> 484=item B<-xrm> I<string>
456 485
457Works like the X Toolkit option of the same name, by adding the I<string> 486Works like the X Toolkit option of the same name, by adding the I<string>
458as if it were specified in a resource file. Resource values specified this 487as if it were specified in a resource file. Resource values specified this
567=item B<depth:> I<bitdepth> 596=item B<depth:> I<bitdepth>
568 597
569Compile I<xft>: Attempt to find a visual with the given bit depth; 598Compile I<xft>: Attempt to find a visual with the given bit depth;
570option B<-depth>. 599option B<-depth>.
571 600
601=item B<buffered:> I<boolean>
602
603Compile I<xft>: Turn on/off double-buffering for xft (default enabled).
604On some card/driver combination enabling it slightly decreases
605performance, on most it greatly helps it. The slowdown is small, so it
606should normally be enabled.
607
572=item B<geometry:> I<geom> 608=item B<geometry:> I<geom>
573 609
574Create the window with the specified X window geometry [default 80x24]; 610Create the window with the specified X window geometry [default 80x24];
575option B<-geometry>. 611option B<-geometry>.
576 612
589Use the specified colour for the colour value I<n>, where 0-7 625Use the specified colour for the colour value I<n>, where 0-7
590corresponds to low-intensity (normal) colours and 8-15 corresponds to 626corresponds to low-intensity (normal) colours and 8-15 corresponds to
591high-intensity (bold = bright foreground, blink = bright background) 627high-intensity (bold = bright foreground, blink = bright background)
592colours. The canonical names are as follows: 0=black, 1=red, 2=green, 628colours. The canonical names are as follows: 0=black, 1=red, 2=green,
5933=yellow, 4=blue, 5=magenta, 6=cyan, 7=white, but the actual colour 6293=yellow, 4=blue, 5=magenta, 6=cyan, 7=white, but the actual colour
594names used are listed in the B<COLORS AND GRAPHICS> section. 630names used are listed in the B<COLOURS AND GRAPHICS> section.
595 631
596Colours higher than 15 cannot be set using resources (yet), but can be 632Colours higher than 15 cannot be set using resources (yet), but can be
597changed using an escape command (see @@RXVT_NAME@@(7)). 633changed using an escape command (see @@RXVT_NAME@@(7)).
598 634
599Colours 16-79 form a standard 4x4x4 colour cube (the same as xterm with 635Colours 16-79 form a standard 4x4x4 colour cube (the same as xterm with
610=item B<colorUL:> I<colour> 646=item B<colorUL:> I<colour>
611 647
612Use the specified colour to display underlined characters when the 648Use the specified colour to display underlined characters when the
613foreground colour is the default. 649foreground colour is the default.
614 650
615=item B<colorRV:> I<colour>
616
617Use the specified colour as the background for reverse video characters
618when OPTION_HC is disabled (--disable-frills).
619
620=item B<underlineColor:> I<colour> 651=item B<underlineColor:> I<colour>
621 652
622If set, use the specified colour as the colour for the underline 653If set, use the specified colour as the colour for the underline
623itself. If unset, use the foreground colour. 654itself. If unset, use the foreground colour.
655
656=item B<highlightColor:> I<colour>
657
658If set, use the specified colour as the background for highlighted
659characters. If unset, use reverse video.
660
661=item B<highlightTextColor:> I<colour>
662
663If set and highlightColor is set, use the specified colour as the
664foreground for highlighted characters.
624 665
625=item B<cursorColor:> I<colour> 666=item B<cursorColor:> I<colour>
626 667
627Use the specified colour for the cursor. The default is to use the 668Use the specified colour for the cursor. The default is to use the
628foreground colour; option B<-cr>. 669foreground colour; option B<-cr>.
635 676
636=item B<reverseVideo:> I<boolean> 677=item B<reverseVideo:> I<boolean>
637 678
638B<True>: simulate reverse video by foreground and background colours; 679B<True>: simulate reverse video by foreground and background colours;
639option B<-rv>. B<False>: regular screen colours [default]; option 680option B<-rv>. B<False>: regular screen colours [default]; option
640B<+rv>. See note in B<COLORS AND GRAPHICS> section. 681B<+rv>. See note in B<COLOURS AND GRAPHICS> section.
641 682
642=item B<jumpScroll:> I<boolean> 683=item B<jumpScroll:> I<boolean>
643 684
644B<True>: specify that jump scrolling should be used. When receiving lots 685B<True>: specify that jump scrolling should be used. When receiving lots
645of lines, @@RXVT_NAME@@ will only scroll once a whole screen height of lines 686of lines, @@RXVT_NAME@@ will only scroll once a whole screen height of lines
694 735
695Specify background blending type; option B<-blt>. 736Specify background blending type; option B<-blt>.
696 737
697=item B<blurRadius:> I<number> 738=item B<blurRadius:> I<number>
698 739
699Apply Gaussian Blurr with the specified radius to the transparent 740Apply gaussian blur with the specified radius to the transparent
700background image; option B<-blr>. 741background image; option B<-blr>.
742
743=item B<iconFile:> I<file>
744
745Set the application icon pixmap; option B<-icon>.
701 746
702=item B<scrollColor:> I<colour> 747=item B<scrollColor:> I<colour>
703 748
704Use the specified colour for the scrollbar [default #B2B2B2]. 749Use the specified colour for the scrollbar [default #B2B2B2].
705 750
772it is named first) and thus defines the character cell grid to be 9 pixels 817it is named first) and thus defines the character cell grid to be 9 pixels
773wide and 15 pixels high. 818wide and 15 pixels high.
774 819
775The second font is just used to add additional unicode characters not in 820The second font is just used to add additional unicode characters not in
776the base font, likewise the third, which is unfortunately non-bold, but 821the base font, likewise the third, which is unfortunately non-bold, but
777the bold version of the font does contain less characters, so this is a 822the bold version of the font does contain fewer characters, so this is a
778useful supplement. 823useful supplement.
779 824
780The third font is an Xft font with aliasing turned off, and the characters 825The third font is an Xft font with aliasing turned off, and the characters
781are limited to the B<JIS 0208> codeset (i.e. japanese kanji). The font 826are limited to the B<JIS 0208> codeset (i.e. japanese kanji). The font
782contains other characters, but we are not interested in them. 827contains other characters, but we are not interested in them.
811option B<-is>, the default), bold/blink font styles imply high 856option B<-is>, the default), bold/blink font styles imply high
812intensity foreground/background colours. Disabling this option (B<False>, 857intensity foreground/background colours. Disabling this option (B<False>,
813option B<+is>) disables this behaviour, the high intensity colours are not 858option B<+is>) disables this behaviour, the high intensity colours are not
814reachable. 859reachable.
815 860
816=item B<scrollstyle:> I<mode>
817
818Set scrollbar style to B<rxvt>, B<plain>, B<next> or B<xterm>. B<plain> is
819the author's favourite.
820
821=item B<title:> I<string> 861=item B<title:> I<string>
822 862
823Set window title string, the default title is the command-line 863Set window title string, the default title is the command-line
824specified after the B<-e> option, if any, otherwise the application 864specified after the B<-e> option, if any, otherwise the application
825name; option B<-title>. 865name; option B<-title>.
838=item B<urgentOnBell:> I<boolean> 878=item B<urgentOnBell:> I<boolean>
839 879
840B<True>: set the urgency hint for the wm on receipt of a bell character. 880B<True>: set the urgency hint for the wm on receipt of a bell character.
841B<False>: do not set the urgency hint [default]. 881B<False>: do not set the urgency hint [default].
842 882
883@@RXVT_NAME@@ resets the urgency hint on every focus change.
884
843=item B<visualBell:> I<boolean> 885=item B<visualBell:> I<boolean>
844 886
845B<True>: use visual bell on receipt of a bell character; option B<-vb>. 887B<True>: use visual bell on receipt of a bell character; option B<-vb>.
846B<False>: no visual bell [default]; option B<+vb>. 888B<False>: no visual bell [default]; option B<+vb>.
847 889
869 911
870 URxvt.print-pipe: cat > $(TMPDIR=$HOME mktemp urxvt.XXXXXX) 912 URxvt.print-pipe: cat > $(TMPDIR=$HOME mktemp urxvt.XXXXXX)
871 913
872This creates a new file in your home directory with the screen contents 914This creates a new file in your home directory with the screen contents
873every time you hit C<Print>. 915every time you hit C<Print>.
916
917=item B<scrollstyle:> I<mode>
918
919Set scrollbar style to B<rxvt>, B<plain>, B<next> or B<xterm>. B<plain> is
920the author's favourite.
874 921
875=item B<scrollBar:> I<boolean> 922=item B<scrollBar:> I<boolean>
876 923
877B<True>: enable the scrollbar [default]; option B<-sb>. B<False>: 924B<True>: enable the scrollbar [default]; option B<-sb>. B<False>:
878disable the scrollbar; option B<+sb>. 925disable the scrollbar; option B<+sb>.
965 1012
966=item B<cursorBlink:> I<boolean> 1013=item B<cursorBlink:> I<boolean>
967 1014
968B<True>: blink the cursor. B<False>: do not blink the cursor [default]; 1015B<True>: blink the cursor. B<False>: do not blink the cursor [default];
969option B<-bc>. 1016option B<-bc>.
1017
1018=item B<cursorUnderline:> I<boolean>
1019
1020B<True>: Make the cursor underlined. B<False>: Make the cursor a box [default];
1021option B<-uc>.
970 1022
971=item B<pointerBlank:> I<boolean> 1023=item B<pointerBlank:> I<boolean>
972 1024
973B<True>: blank the pointer when a key is pressed or after a set number 1025B<True>: blank the pointer when a key is pressed or after a set number
974of seconds of inactivity. B<False>: the pointer is always visible 1026of seconds of inactivity. B<False>: the pointer is always visible
1077 1129
1078=item B<secondaryScroll:> I<boolean> 1130=item B<secondaryScroll:> I<boolean>
1079 1131
1080Turn on/off secondary screen scroll (default enabled). If this 1132Turn on/off secondary screen scroll (default enabled). If this
1081option is enabled, scrolls on the secondary screen will change the 1133option is enabled, scrolls on the secondary screen will change the
1082scrollback buffer and switching to/from the secondary screen will 1134scrollback buffer and, when secondaryScreen is off, switching
1083instead scroll the screen up. 1135to/from the secondary screen will instead scroll the screen up.
1084 1136
1085=item B<hold>: I<boolean> 1137=item B<hold>: I<boolean>
1086 1138
1087Turn on/off hold window after exit support. If enabled, @@RXVT_NAME@@ 1139Turn on/off hold window after exit support. If enabled, @@RXVT_NAME@@
1088will not immediately destroy its window when the program executed within 1140will not immediately destroy its window when the program executed within
1089it exits. Instead, it will wait till it is being killed or closed by the 1141it exits. Instead, it will wait till it is being killed or closed by the
1090user. 1142user.
1143
1144=item B<chdir>: I<path>
1145
1146Sets the working directory for the shell (or the command specified via
1147B<-e>). The I<path> must be an absolute path and it must exist for
1148@@RXVT_NAME@@ to start. If it isn't specified then the current working
1149directory will be used; option B<-cd>.
1091 1150
1092=item B<keysym.>I<sym>: I<string> 1151=item B<keysym.>I<sym>: I<string>
1093 1152
1094Compile I<frills>: Associate I<string> with keysym I<sym>. The 1153Compile I<frills>: Associate I<string> with keysym I<sym>. The
1095intervening resource name B<keysym.> cannot be omitted. 1154intervening resource name B<keysym.> cannot be omitted.
1134when Control-Meta-c is being pressed": 1193when Control-Meta-c is being pressed":
1135 1194
1136 URxvt.keysym.M-C-c: command:\033]701;zh_CN.GBK\007 1195 URxvt.keysym.M-C-c: command:\033]701;zh_CN.GBK\007
1137 1196
1138If I<string> takes the form C<perl:STRING>, then the specified B<STRING> 1197If I<string> takes the form C<perl:STRING>, then the specified B<STRING>
1139is passed to the C<on_keyboard_command> perl handler. See the @@RXVT_NAME@@perl(3) 1198is passed to the C<on_user_command> perl handler. See the @@RXVT_NAME@@perl(3)
1140manpage. For example, the F<selection> extension (activated via 1199manpage. For example, the F<selection> extension (activated via
1141C<@@RXVT_NAME@@ -pe selection>) listens for C<selection:rot13> events: 1200C<@@RXVT_NAME@@ -pe selection>) listens for C<selection:rot13> events:
1142 1201
1143 URxvt.keysym.M-C-c: perl:selection:rot13 1202 URxvt.keysym.M-C-c: perl:selection:rot13
1144 1203
1202all instances, while B<perl-ext> is used for specific instances. 1261all instances, while B<perl-ext> is used for specific instances.
1203 1262
1204=item B<perl-eval>: I<string> 1263=item B<perl-eval>: I<string>
1205 1264
1206Perl code to be evaluated when all extensions have been registered. See 1265Perl code to be evaluated when all extensions have been registered. See
1207the @@RXVT_NAME@@perl(3) manpage. Due to security reasons, this resource 1266the @@RXVT_NAME@@perl(3) manpage.
1208will be ignored when running setuid/setgid.
1209 1267
1210=item B<perl-lib>: I<path> 1268=item B<perl-lib>: I<path>
1211 1269
1212Colon-separated list of additional directories that hold extension 1270Colon-separated list of additional directories that hold extension
1213scripts. When looking for extensions specified by the C<perl> resource, 1271scripts. When looking for extensions specified by the C<perl> resource,
1214@@RXVT_NAME@@ will first look in these directories and then in 1272@@RXVT_NAME@@ will first look in these directories and then in
1215F<@@RXVT_LIBDIR@@/urxvt/perl/>. Due to security reasons, this resource 1273F<@@RXVT_LIBDIR@@/urxvt/perl/>.
1216will be ignored when running setuid/setgid.
1217 1274
1218See the @@RXVT_NAME@@perl(3) manpage. 1275See the @@RXVT_NAME@@perl(3) manpage.
1219 1276
1220=item B<< selection.pattern-I<idx> >>: I<perl-regex> 1277=item B<< selection.pattern-I<idx> >>: I<perl-regex>
1221 1278
1243 1300
1244=item B<override-redirect>: I<boolean> 1301=item B<override-redirect>: I<boolean>
1245 1302
1246Compile I<frills>: Sets override-redirect for the terminal window, making 1303Compile I<frills>: Sets override-redirect for the terminal window, making
1247it almost invisible to window managers; option B<-override-redirect>. 1304it almost invisible to window managers; option B<-override-redirect>.
1305
1306=item B<iso14755:> I<boolean>
1307
1308Turn on/off ISO 14755 (default enabled).
1248 1309
1249=item B<iso14755_52:> I<boolean> 1310=item B<iso14755_52:> I<boolean>
1250 1311
1251Turn on/off ISO 14755 5.2 mode (default enabled). 1312Turn on/off ISO 14755 5.2 mode (default enabled).
1252 1313
1395B<@@RXVT_NAME@@> tries to write an entry into the I<utmp>(5) file so that 1456B<@@RXVT_NAME@@> tries to write an entry into the I<utmp>(5) file so that
1396it can be seen via the I<who(1)> command, and can accept messages. To 1457it can be seen via the I<who(1)> command, and can accept messages. To
1397allow this feature, B<@@RXVT_NAME@@> may need to be installed setuid root 1458allow this feature, B<@@RXVT_NAME@@> may need to be installed setuid root
1398on some systems or setgid to root or to some other group on others. 1459on some systems or setgid to root or to some other group on others.
1399 1460
1400=head1 COLORS AND GRAPHICS 1461=head1 COLOURS AND GRAPHICS
1401 1462
1402In addition to the default foreground and background colours, 1463In addition to the default foreground and background colours,
1403B<@@RXVT_NAME@@> can display up to 16 colours (8 ANSI colours plus 1464B<@@RXVT_NAME@@> can display up to 88/256 colours: 8 ANSI colours plus
1404high-intensity bold/blink versions of the same). Here is a list of the 1465high-intensity (potentially bold/blink) versions of the same, and 72 (or
1405colours with their names. 1466240 in 256 colour mode) colours arranged in an 4x4x4 (or 6x6x6) colour RGB
1467cube plus a 8 (24) colour greyscale ramp.
1468
1469Here is a list of the ANSI colours with their names.
1406 1470
1407=begin table 1471=begin table
1408 1472
1409 B<color0> (black) = Black 1473 B<color0> (black) = Black
1410 B<color1> (red) = Red3 1474 B<color1> (red) = Red3
1430It is also possible to specify the colour values of B<foreground>, 1494It is also possible to specify the colour values of B<foreground>,
1431B<background>, B<cursorColor>, B<cursorColor2>, B<colorBD>, B<colorUL> as 1495B<background>, B<cursorColor>, B<cursorColor2>, B<colorBD>, B<colorUL> as
1432a number 0-15, as a convenient shorthand to reference the colour name of 1496a number 0-15, as a convenient shorthand to reference the colour name of
1433color0-color15. 1497color0-color15.
1434 1498
1435In addition to the colours defined above, @@RXVT_NAME@@ offers an 1499The following text gives values for the standard 88 colour mode (and
1436additional 72 colours. The first 64 of those (with indices 16 to 79) 1500values for the 256 colour mode in parentheses).
1437consist of a 4*4*4 RGB colour cube (i.e. I<index = r * 16 + g * 4 + b +
143816>), followed by 8 additional shades of gray (with indices 80 to 87).
1439 1501
1502The RGB cube uses indices 16..79 (16..231) using the following formulas:
1503
1504 index_88 = (r * 4 + g) * 4 + b + 16 # r, g, b = 0..3
1505 index_256 = (r * 16 + g) * 16 + b + 16 # r, g, b = 0..15
1506
1507The grayscale ramp uses indices 80..87 (232..239), from 10% to 90% in 10%
1508steps (1/26 to 25/26 in 1/26 steps) - black and white are already part of
1509the RGB cube.
1510
1440Together, all those colours implement the 88 colour xterm colours. Only 1511Together, all those colours implement the 88 (256) colour xterm
1441the first 16 can be changed using resources currently, the rest can only 1512colours. Only the first 16 can be changed using resources currently, the
1442be changed via command sequences ("escape codes"). 1513rest can only be changed via command sequences ("escape codes").
1514
1515Applications are advised to use terminfo or command sequences to discover
1516number and RGB values of all colours (yes, you can query this...).
1443 1517
1444Note that B<-rv> (B<"reverseVideo: True">) simulates reverse video by 1518Note that B<-rv> (B<"reverseVideo: True">) simulates reverse video by
1445always swapping the foreground/background colours. This is in contrast to 1519always swapping the foreground/background colours. This is in contrast to
1446I<xterm>(1) where the colours are only swapped if they have not otherwise 1520I<xterm>(1) where the colours are only swapped if they have not otherwise
1447been specified. For example, 1521been specified. For example,
1448 1522
1449=over 4
1450
1451=item B<@@RXVT_NAME@@ -fg Black -bg White -rv> 1523 @@RXVT_NAME@@ -fg Black -bg White -rv
1452 1524
1453would yield White on Black, while on I<xterm>(1) it would yield Black 1525would yield White on Black, while on I<xterm>(1) it would yield Black on
1454on White. 1526White.
1455
1456=back
1457 1527
1458=head2 ALPHA CHANNEL SUPPORT 1528=head2 ALPHA CHANNEL SUPPORT
1459 1529
1460If Xft support has been compiled in and as long as Xft/Xrender/X don't get 1530If Xft support has been compiled in and as long as Xft/Xrender/X don't get
1461their act together, rxvt-unicode will support C<rgba:rrrr/gggg/bbbb/aaaa> 1531their act together, rxvt-unicode will do it's own alpha channel management:
1462(recommended, but B<MUST> have 4 digits/component) colour specifications, 1532
1463in addition to the ones provided by X, where the additional A component 1533You can prefix any colour with an opaquenes percentage enclosed in
1534brackets, i.e. C<[percent]>, where C<percent> is a decimal percentage
1535(0-100) that specifies the opacity of the colour, where C<0> is completely
1536transparent and C<100> is completely opaque. For example, C<[50]red> is a
1537half-transparent red, while C<[95]#00ff00> is an almost opaque green. This
1538is the recommended format to specify transparency values, and works with
1539all ways to specify a colour.
1540
1541For complete control, rxvt-unicode also supports
1542C<rgba:rrrr/gggg/bbbb/aaaa> (exactly four hex digits/component) colour
1543specifications, where the additional C<aaaa> component specifies opacity
1464specifies opacity (alpha) values. The minimum value of C<0> is completely 1544(alpha) values. The minimum value of C<0000> is completely transparent,
1465transparent). You can also prefix any color with C<[percent]>, where 1545while C<ffff> is completely opaque). The two example colours from
1466C<percent> is a decimal percentage (0-100) that specifies the opacity of 1546earlier could also be specified as C<rgba:ff00/0000/0000/8000> and
1467the color, where C<0> is completely transparent and C<100> is completelxy 1547C<rgba:0000/ff00/0000/f332>.
1468opaque.
1469 1548
1470You probably need to specify B<"-depth 32">, too, and have the luck that 1549You probably need to specify B<"-depth 32">, too, to force a visual with
1471your X-server uses ARGB pixel layout, as X is far from just supporting 1550alpha channels, and have the luck that your X-server uses ARGB pixel
1472ARGB visuals out of the box, and rxvt-unicode just fudges around. 1551layout, as X is far from just supporting ARGB visuals out of the box, and
1552rxvt-unicode just fudges around.
1473 1553
1474For example, the following selects an almost completely transparent red 1554For example, the following selects an almost completely transparent black
1475background, and an almost opaque pink foreground: 1555background, and an almost opaque pink foreground:
1476 1556
1477 @@RXVT_NAME@@ -depth 32 -bg rgba:0000/0000/0000/aaaa -fg "[80]pink" 1557 @@RXVT_NAME@@ -depth 32 -bg rgba:0000/0000/0000/4444 -fg "[80]pink"
1478 1558
1479I<Please note that transparency of any kind if completely unsupported by 1559When not using a background image, then the interpretation of the
1480the author. Don't bug him with installation questions!> 1560alpha channel is up to your compositing manager (most interpret it as
1561transparency of course).
1562
1563When using a background pixmap or pseudo-transparency, then the background
1564colour will always behave as if it were completely transparent (so the
1565background image shows instead), regardless of how it was specified, while
1566other colours will either be transparent as specified (the background
1567image will show through) on servers supporting the RENDER extension, or
1568fully opaque on servers not supporting the RENDER EXTENSION.
1569
1570Please note that due to bugs in Xft, specifying alpha values might result
1571in garbage being displayed when the X-server does not support the RENDER
1572extension.
1481 1573
1482=head1 ENVIRONMENT 1574=head1 ENVIRONMENT
1483 1575
1484B<@@RXVT_NAME@@> sets and/or uses the following environment variables: 1576B<@@RXVT_NAME@@> sets and/or uses the following environment variables:
1485 1577
1519C<--with-terminfo=PATH>. 1611C<--with-terminfo=PATH>.
1520 1612
1521=item B<DISPLAY> 1613=item B<DISPLAY>
1522 1614
1523Used by @@RXVT_NAME@@ to connect to the display and set to the correct 1615Used by @@RXVT_NAME@@ to connect to the display and set to the correct
1524display in its child processes. 1616display in its child processes if C<-display> isn't used to override. It
1617defaults to C<:0> if it doesn't exist.
1525 1618
1526=item B<SHELL> 1619=item B<SHELL>
1527 1620
1528The shell to be used for command execution, defaults to C</bin/sh>. 1621The shell to be used for command execution, defaults to C</bin/sh>.
1529 1622
1555 1648
1556=over 4 1649=over 4
1557 1650
1558=item B</usr/lib/X11/rgb.txt> 1651=item B</usr/lib/X11/rgb.txt>
1559 1652
1560Color names. 1653Colour names.
1561 1654
1562=back 1655=back
1563 1656
1564=head1 SEE ALSO 1657=head1 SEE ALSO
1565 1658

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