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Revision 1.125 by root, Fri Jan 19 23:45:03 2007 UTC

17=head1 FREQUENTLY ASKED QUESTIONS 17=head1 FREQUENTLY ASKED QUESTIONS
18 18
19See @@RXVT_NAME@@(7) (try C<man 7 @@RXVT_NAME@@>) for a list of 19See @@RXVT_NAME@@(7) (try C<man 7 @@RXVT_NAME@@>) for a list of
20frequently asked questions and answer to them and some common 20frequently asked questions and answer to them and some common
21problems. That document is also accessible on the World-Wide-Web at 21problems. That document is also accessible on the World-Wide-Web at
22L<http://cvs.schmorp.de/browse/*checkout*/rxvt-unicode/doc/rxvt.7.html>. 22L<http://cvs.schmorp.de/browse/rxvt-unicode/doc/rxvt.7.html>.
23 23
24=head1 RXVT-UNICODE VS. RXVT 24=head1 RXVT-UNICODE VS. RXVT
25 25
26Unlike the original rxvt, B<rxvt-unicode> stores all text in Unicode 26Unlike the original rxvt, B<rxvt-unicode> stores all text in Unicode
27internally. That means it can store and display most scripts in the 27internally. That means it can store and display most scripts in the
28world. Being a terminal emulator, however, some things are very difficult, 28world. Being a terminal emulator, however, some things are very difficult,
29especially cursive scripts such as arabic, vertically written scripts 29especially cursive scripts such as arabic, vertically written scripts
30like mongolian or scripts requiring extremely complex combining rules, 30like mongolian or scripts requiring extremely complex combining rules,
31like tibetan or devenagari. Don't expect pretty output when using these 31like tibetan or devenagari. Don't expect pretty output when using these
32scripts. Most other scripts, latin, cyrillic, kanji, thai etc. should work 32scripts. Most other scripts, latin, cyrillic, kanji, thai etc. should work
33fine, though. A somewhat difficult case are left-to-right scripts, such 33fine, though. A somewhat difficult case are right-to-left scripts, such
34as hebrew: B<rxvt-unicode> adopts the view that bidirectional algorithms 34as hebrew: B<rxvt-unicode> adopts the view that bidirectional algorithms
35belong into the application, not the terminal emulator (too many things -- 35belong into the application, not the terminal emulator (too many things --
36such as cursor-movement while editing -- break otherwise), but that might 36such as cursor-movement while editing -- break otherwise), but that might
37change. 37change.
38 38
39If you are looking for a terminal that supports more exotic scripts, let 39If you are looking for a terminal that supports more exotic scripts, let
40me recommend C<mlterm>, which is a very userfriendly, lean and clean 40me recommend C<mlterm>, which is a very user friendly, lean and clean
41terminal emulator. In fact, the reason rxvt-unicode was born was solely 41terminal emulator. In fact, the reason rxvt-unicode was born was solely
42because the author couldn't get C<mlterm> to use one font for latin1 and 42because the author couldn't get C<mlterm> to use one font for latin1 and
43another for japanese. 43another for japanese.
44 44
45Therefore another design rationale was the use of multiple fonts to 45Therefore another design rationale was the use of multiple fonts to
46display characters: The idea of a single unicode font which many other 46display characters: The idea of a single unicode font which many other
47programs force onto it's users never made sense to me: You should be able 47programs force onto its users never made sense to me: You should be able
48to choose any font for any script freely. 48to choose any font for any script freely.
49 49
50Apart from that, rxvt-unicode is also much better internationalised than 50Apart from that, rxvt-unicode is also much better internationalised than
51it's predecessor, supports things such as XFT and ISO 14755 that are handy 51its predecessor, supports things such as XFT and ISO 14755 that are handy
52in i18n-environments, is faster, and has a lot less bugs than the original 52in i18n-environments, is faster, and has a lot bugs less than the original
53rxvt. This all in addition to dozens of other small improvements. 53rxvt. This all in addition to dozens of other small improvements.
54 54
55It is still faithfully following the original rxvt idea of being lean 55It is still faithfully following the original rxvt idea of being lean
56and nice on resources: for example, you can still configure rxvt-unicode 56and nice on resources: for example, you can still configure rxvt-unicode
57without most of it's features to get a lean binary. It also comes with 57without most of its features to get a lean binary. It also comes with
58a client/daemon pair that lets you open any number of terminal windows 58a client/daemon pair that lets you open any number of terminal windows
59from within a single process, which makes startup time very fast and 59from within a single process, which makes startup time very fast and
60drastically reduces memory usage. See @@RXVT_NAME@@d(1) (daemon) and 60drastically reduces memory usage. See @@RXVT_NAME@@d(1) (daemon) and
61@@RXVT_NAME@@c(1) (client). 61@@RXVT_NAME@@c(1) (client).
62 62
63It also makes technical information about escape sequences (which have 63It also makes technical information about escape sequences (which have
64been extended) easier accessible: see @@RXVT_NAME@@(7) for technical 64been extended) more accessible: see @@RXVT_NAME@@(7) for technical
65reference documentation (escape sequences etc.). 65reference documentation (escape sequences etc.).
66 66
67=head1 OPTIONS 67=head1 OPTIONS
68 68
69The B<@@RXVT_NAME@@> options (mostly a subset of I<xterm>'s) are listed 69The B<@@RXVT_NAME@@> options (mostly a subset of I<xterm>'s) are listed
93 93
94Attempt to open a window on the named X display (B<-d> still 94Attempt to open a window on the named X display (B<-d> still
95respected). In the absence of this option, the display specified by the 95respected). In the absence of this option, the display specified by the
96B<DISPLAY> environment variable is used. 96B<DISPLAY> environment variable is used.
97 97
98=item B<-depth> I<bitdepth>
99
100Compile I<xft>: Attempt to find a visual with the given bit depth;
101resource B<depth>.
102
98=item B<-geometry> I<geom> 103=item B<-geometry> I<geom>
99 104
100Window geometry (B<-g> still respected); resource B<geometry>. 105Window geometry (B<-g> still respected); resource B<geometry>.
101 106
102=item B<-rv>|B<+rv> 107=item B<-rv>|B<+rv>
109 114
110=item B<-ip>|B<+ip> | B<-tr>|B<+tr> 115=item B<-ip>|B<+ip> | B<-tr>|B<+tr>
111 116
112Turn on/off inheriting parent window's pixmap. Alternative form is 117Turn on/off inheriting parent window's pixmap. Alternative form is
113B<-tr>; resource B<inheritPixmap>. 118B<-tr>; resource B<inheritPixmap>.
119
120I<Please note that transparency of any kind if completely unsupported by
121the author. Don't bug him with installation questions! Read the FAQ (man 7
122@@RXVT_NAME@@)!>
114 123
115=item B<-fade> I<number> 124=item B<-fade> I<number>
116 125
117Fade the text by the given percentage when focus is lost. Small values 126Fade the text by the given percentage when focus is lost. Small values
118fade a little only, 100 completely replaces all colours by the fade 127fade a little only, 100 completely replaces all colours by the fade
119colour; resource B<fading>. 128colour; resource B<fading>.
120 129
121=item B<-fadecolor> I<colour> 130=item B<-fadecolor> I<colour>
122 131
123Fade to this colour when fading is used (see B<-fade>). The default colour 132Fade to this colour when fading is used (see B<-fade>). The default colour
124is black. resource B<fadeColor>. 133is opaque black. resource B<fadeColor>.
125 134
126=item B<-tint> I<colour> 135=item B<-tint> I<colour>
127 136
128Tint the transparent background pixmap with the given colour when 137Tint the transparent background pixmap with the given colour when
129transparency is enabled with B<-tr> or B<-ip>. This only works for 138transparency is enabled with B<-tr> or B<-ip>. This only works for
135 144
136=item B<-sh> 145=item B<-sh>
137 146
138I<number> Darken (0 .. 100) or lighten (-1 .. -100) the transparent 147I<number> Darken (0 .. 100) or lighten (-1 .. -100) the transparent
139background image in addition to tinting it (i.e. B<-tint> must be 148background image in addition to tinting it (i.e. B<-tint> must be
140specified, too, e.g. C<-tint white>). 149specified, too, e.g. C<-tint white>); resource I<shading>.
141 150
142=item B<-bg> I<colour> 151=item B<-bg> I<colour>
143 152
144Window background colour; resource B<background>. 153Window background colour; resource B<background>.
145 154
177that are checked in order when trying to find glyphs for characters. The 186that are checked in order when trying to find glyphs for characters. The
178first font defines the cell size for characters; other fonts might be 187first font defines the cell size for characters; other fonts might be
179smaller, but not (in general) larger. A (hopefully) reasonable default 188smaller, but not (in general) larger. A (hopefully) reasonable default
180font list is always appended to it. See resource B<font> for more details. 189font list is always appended to it. See resource B<font> for more details.
181 190
182In short, to specify an X11 core font, just specify it's name or prefix it 191In short, to specify an X11 core font, just specify its name or prefix it
183with C<x:>. To specify an XFT-font, you need to prefix it with C<xft:>, 192with C<x:>. To specify an XFT-font, you need to prefix it with C<xft:>,
184e.g.: 193e.g.:
185 194
186 @@RXVT_NAME@@ -fn "xft:Bitstream Vera Sans Mono:pixelsize=15" 195 @@RXVT_NAME@@ -fn "xft:Bitstream Vera Sans Mono:pixelsize=15"
187 @@RXVT_NAME@@ -fn "9x15bold,xft:Bitstream Vera Sans Mono" 196 @@RXVT_NAME@@ -fn "9x15bold,xft:Bitstream Vera Sans Mono"
415 424
416Remap a key symbol. See resource B<keysym>. 425Remap a key symbol. See resource B<keysym>.
417 426
418=item B<-embed> I<windowid> 427=item B<-embed> I<windowid>
419 428
420Tells @@RXVT_NAME@@ to embed it's windows into an already-existing window, 429Tells @@RXVT_NAME@@ to embed its windows into an already-existing window,
421which enables applications to easily embed a terminal. 430which enables applications to easily embed a terminal.
422 431
423Right now, @@RXVT_NAME@@ will first unmap/map the specified window, so it 432Right now, @@RXVT_NAME@@ will first unmap/map the specified window, so it
424shouldn't be a top-level window. @@RXVT_NAME@@ will also reconfigure it 433shouldn't be a top-level window. @@RXVT_NAME@@ will also reconfigure it
425quite a bit, so don't expect it to keep some specific state. It's best to 434quite a bit, so don't expect it to keep some specific state. It's best to
428The window will not be destroyed when @@RXVT_NAME@@ exits. 437The window will not be destroyed when @@RXVT_NAME@@ exits.
429 438
430It might be useful to know that @@RXVT_NAME@@ will not close file 439It might be useful to know that @@RXVT_NAME@@ will not close file
431descriptors passed to it (except for stdin/out/err, of course), so you 440descriptors passed to it (except for stdin/out/err, of course), so you
432can use file descriptors to communicate with the programs within the 441can use file descriptors to communicate with the programs within the
433terminal. This works regardless of wether the C<-embed> option was used or 442terminal. This works regardless of whether the C<-embed> option was used or
434not. 443not.
435 444
436Here is a short Gtk2-perl snippet that illustrates how this option can be 445Here is a short Gtk2-perl snippet that illustrates how this option can be
437used (a longer example is in F<doc/embed>): 446used (a longer example is in F<doc/embed>):
438 447
443 }); 452 });
444 453
445=item B<-pty-fd> I<file descriptor> 454=item B<-pty-fd> I<file descriptor>
446 455
447Tells @@RXVT_NAME@@ NOT to execute any commands or create a new pty/tty 456Tells @@RXVT_NAME@@ NOT to execute any commands or create a new pty/tty
448pair but instead use the given filehandle as the tty master. This is 457pair but instead use the given file descriptor as the tty master. This is
449useful if you want to drive @@RXVT_NAME@@ as a generic terminal emulator 458useful if you want to drive @@RXVT_NAME@@ as a generic terminal emulator
450without having to run a program within it. 459without having to run a program within it.
451 460
452If this switch is given, @@RXVT_NAME@@ will not create any utmp/wtmp 461If this switch is given, @@RXVT_NAME@@ will not create any utmp/wtmp
453entries and will not tinker with pty/tty permissions - you have to do that 462entries and will not tinker with pty/tty permissions - you have to do that
505check the @@RXVT_NAME@@perl(3) manpage for additional settings by perl 514check the @@RXVT_NAME@@perl(3) manpage for additional settings by perl
506extensions not documented here): 515extensions not documented here):
507 516
508=over 4 517=over 4
509 518
519=item B<depth:> I<bitdepth>
520
521Compile I<xft>: Attempt to find a visual with the given bit depth;
522option B<-depth>.
523
510=item B<geometry:> I<geom> 524=item B<geometry:> I<geom>
511 525
512Create the window with the specified X window geometry [default 80x24]; 526Create the window with the specified X window geometry [default 80x24];
513option B<-geometry>. 527option B<-geometry>.
514 528
550Use the specified colour to display underlined characters when the 564Use the specified colour to display underlined characters when the
551foreground colour is the default. 565foreground colour is the default.
552 566
553=item B<colorRV:> I<colour> 567=item B<colorRV:> I<colour>
554 568
555Use the specified colour as the background for reverse video 569Use the specified colour as the background for reverse video characters
556characters. 570when OPTION_HC is disabled (--disable-frills).
557 571
558=item B<underlineColor:> I<colour> 572=item B<underlineColor:> I<colour>
559 573
560If set, use the specified colour as the colour for the underline 574If set, use the specified colour as the colour for the underline
561itself. If unset, use the foreground colour. 575itself. If unset, use the foreground colour.
587 601
588B<True>: make the background inherit the parent windows' pixmap, giving 602B<True>: make the background inherit the parent windows' pixmap, giving
589artificial transparency. B<False>: do not inherit the parent windows' 603artificial transparency. B<False>: do not inherit the parent windows'
590pixmap. 604pixmap.
591 605
606I<Please note that transparency of any kind if completely unsupported by
607the author. Don't bug him with installation questions!>
608
592=item B<fading:> I<number> 609=item B<fading:> I<number>
593 610
594Fade the text by the given percentage when focus is lost; option B<-fade>. 611Fade the text by the given percentage when focus is lost; option B<-fade>.
595 612
596=item B<fadeColor:> I<colour> 613=item B<fadeColor:> I<colour>
603Tint the transparent background pixmap with the given colour; option 620Tint the transparent background pixmap with the given colour; option
604B<-tint>. 621B<-tint>.
605 622
606=item B<shading:> I<number> 623=item B<shading:> I<number>
607 624
608Darken (0 .. 100) or lighten (-1 .. -100) the transparent background 625Darken (0 .. 100) or lighten (-1 .. -100) the transparent background image
609image in addition to tinting it. 626in addition to tinting it; option B<-sh>.
610 627
611=item B<scrollColor:> I<colour> 628=item B<scrollColor:> I<colour>
612 629
613Use the specified colour for the scrollbar [default #B2B2B2]. 630Use the specified colour for the scrollbar [default #B2B2B2].
614 631
702 719
703=item B<intensityStyles:> I<boolean> 720=item B<intensityStyles:> I<boolean>
704 721
705When font styles are not enabled, or this option is enabled (B<True>, 722When font styles are not enabled, or this option is enabled (B<True>,
706option B<-is>, the default), bold and italic font styles imply high 723option B<-is>, the default), bold and italic font styles imply high
707intensity foreground/backround colours. Disabling this option (B<False>, 724intensity foreground/background colours. Disabling this option (B<False>,
708option B<+is>) disables this behaviour, the high intensity colours are not 725option B<+is>) disables this behaviour, the high intensity colours are not
709reachable. 726reachable.
710 727
711=item B<selectstyle:> I<mode> 728=item B<selectstyle:> I<mode>
712 729
764Example: 781Example:
765 782
766 URxvt.print-pipe: cat > $(TMPDIR=$HOME mktemp urxvt.XXXXXX) 783 URxvt.print-pipe: cat > $(TMPDIR=$HOME mktemp urxvt.XXXXXX)
767 784
768This creates a new file in your home directory with the screen contents 785This creates a new file in your home directory with the screen contents
769everytime you hit C<Print>. 786every time you hit C<Print>.
770 787
771=item B<scrollBar:> I<boolean> 788=item B<scrollBar:> I<boolean>
772 789
773B<True>: enable the scrollbar [default]; option B<-sb>. B<False>: 790B<True>: enable the scrollbar [default]; option B<-sb>. B<False>:
774disable the scrollbar; option B<+sb>. 791disable the scrollbar; option B<+sb>.
796 813
797=item B<scrollWithBuffer:> I<boolean> 814=item B<scrollWithBuffer:> I<boolean>
798 815
799B<True>: scroll with scrollback buffer when tty receives new lines (and 816B<True>: scroll with scrollback buffer when tty receives new lines (and
800B<scrollTtyOutput> is False); option B<-sw>. B<False>: do not scroll 817B<scrollTtyOutput> is False); option B<-sw>. B<False>: do not scroll
801with scrollback buffer when tty recieves new lines; option B<+sw>. 818with scrollback buffer when tty receives new lines; option B<+sw>.
802 819
803=item B<scrollTtyKeypress:> I<boolean> 820=item B<scrollTtyKeypress:> I<boolean>
804 821
805B<True>: scroll to bottom when a non-special key is pressed. Special keys 822B<True>: scroll to bottom when a non-special key is pressed. Special keys
806are those which are intercepted by rxvt-unicode for special handling and 823are those which are intercepted by rxvt-unicode for special handling and
896pressed. If unset it will send the sequence traditionally associated 913pressed. If unset it will send the sequence traditionally associated
897with the B<Execute> key. 914with the B<Execute> key.
898 915
899=item B<cutchars:> I<string> 916=item B<cutchars:> I<string>
900 917
901The characters used as delimiters for double-click word selection. The 918The characters used as delimiters for double-click word selection
902built-in default: 919(whitespace delimiting is added automatically if resource is given).
920
921When the selection extension is in use (the default if compiled in, see
922the @@RXVT_NAME@@perl(3) manpage), a suitable regex using these characters
923will be created (if the resource exists, otherwise, no regex will be
924created). In this mode, characters outside ISO-8859-1 can be used.
925
926When the selection extension is not used, only ISO-8859-1 characters can
927be used. If not specified, the built-in default is used:
903 928
904B<< BACKSLASH `"'&()*,;<=>?@[]{|} >> 929B<< BACKSLASH `"'&()*,;<=>?@[]{|} >>
905 930
906=item B<preeditType:> I<style> 931=item B<preeditType:> I<style>
907 932
1001 1026
1002I<string> may contain escape values (C<\a>: bell, C<\b>: backspace, 1027I<string> may contain escape values (C<\a>: bell, C<\b>: backspace,
1003C<\e>, C<\E>: escape, C<\n>: newline, C<\r>: carriage return, C<\t>: tab, 1028C<\e>, C<\E>: escape, C<\n>: newline, C<\r>: carriage return, C<\t>: tab,
1004C<\000>: octal number) or verbatim control characters (C<^?>: delete, 1029C<\000>: octal number) or verbatim control characters (C<^?>: delete,
1005C<^@>: null, C<^A> ...) and may be enclosed with double quotes so that it 1030C<^@>: null, C<^A> ...) and may be enclosed with double quotes so that it
1006can start or end with whitespace. 1031can start or end with whitespace. B<This feature is deprecated and will
1032be removed>.
1007 1033
1008Please note that you need to double the C<\> in resource files, as 1034Please note that you need to double the C<\> in resource files, as
1009Xlib itself does it's own de-escaping (you can use C<\033> instead of 1035Xlib itself does its own de-escaping (you can use C<\033> instead of
1010C<\e> (and so on), which will work with both Xt and @@RXVT_NAME@@'s own 1036C<\e> (and so on), which will work with both Xt and @@RXVT_NAME@@'s own
1011processing). 1037processing).
1012 1038
1013You can define a range of keysyms in one shot by providing a I<string> 1039You can define a range of keysyms in one shot by providing a I<string>
1014with pattern B<list/PREFIX/MIDDLE/SUFFIX>, where the delimeter `/' 1040with pattern B<list/PREFIX/MIDDLE/SUFFIX>, where the delimiter `/'
1015should be a character not used by the strings. 1041should be a character not used by the strings.
1016 1042
1017Its usage can be demonstrated by an example: 1043Its usage can be demonstrated by an example:
1018 1044
1019 URxvt.keysym.M-C-0x61: list|\033<M-C-|abc|> 1045 URxvt.keysym.M-C-0x61: list|\033<M-C-|abc|>
1083example, C<default,-selection> will use all the default extension except 1109example, C<default,-selection> will use all the default extension except
1084C<selection>. 1110C<selection>.
1085 1111
1086Extension names can also be followed by an argument in angle brackets 1112Extension names can also be followed by an argument in angle brackets
1087(e.g. C<< searchable-scrollback<M-s> >>, which binds the hotkey for 1113(e.g. C<< searchable-scrollback<M-s> >>, which binds the hotkey for
1088searchable scorllback to Alt/Meta-s). Mentioning the same extension 1114searchable scrollback to Alt/Meta-s). Mentioning the same extension
1089multiple times with different arguments will pass multiple arguments to 1115multiple times with different arguments will pass multiple arguments to
1090the extension. 1116the extension.
1091 1117
1092Each extension is looked up in the library directories, loaded if 1118Each extension is looked up in the library directories, loaded if
1093necessary, and bound to the current terminal instance. 1119necessary, and bound to the current terminal instance.
1129(default: C<M-s>). 1155(default: C<M-s>).
1130 1156
1131=item B<urlLauncher>: I<string> 1157=item B<urlLauncher>: I<string>
1132 1158
1133Specifies the program to be started with a URL argument. Used by the 1159Specifies the program to be started with a URL argument. Used by the
1134C<selection-popup> and C<mark-urls> perl extensions. 1160C<selection-popup> and C<matcher> perl extensions.
1135 1161
1136=item B<transient-for>: I<windowid> 1162=item B<transient-for>: I<windowid>
1137 1163
1138Compile I<frills>: Sets the WM_TRANSIENT_FOR property to the given window id. 1164Compile I<frills>: Sets the WM_TRANSIENT_FOR property to the given window id.
1139 1165
1190selection, and trailing whitespace is visually underlined and removed from 1216selection, and trailing whitespace is visually underlined and removed from
1191the selection. 1217the selection.
1192 1218
1193=item B<Insertion>: 1219=item B<Insertion>:
1194 1220
1195Pressing and releasing the Middle mouse button (or B<Shift-Insert>) in 1221Pressing and releasing the Middle mouse button in an B<@@RXVT_NAME@@>
1196an B<@@RXVT_NAME@@> window causes the current text selection to be 1222window causes the value of the PRIMARY selection (or CLIPBOARD with the
1197inserted as if it had been typed on the keyboard. 1223Meta modifier) to be inserted as if it had been typed on the keyboard.
1224
1225Pressing B<Shift-Insert> causes the value of the PRIMARY selection to be
1226inserted too.
1198 1227
1199=back 1228=back
1200 1229
1201=head1 CHANGING FONTS 1230=head1 CHANGING FONTS
1202 1231
1246This mode lets you input characters representing the keycap symbols of 1275This mode lets you input characters representing the keycap symbols of
1247your keyboard, if representable in the current locale encoding. 1276your keyboard, if representable in the current locale encoding.
1248 1277
1249Start by pressing C<Control> and C<Shift> together, then releasing 1278Start by pressing C<Control> and C<Shift> together, then releasing
1250them. The next special key (cursor keys, home etc.) you enter will not 1279them. The next special key (cursor keys, home etc.) you enter will not
1251invoke it's usual function but instead will insert the corresponding 1280invoke its usual function but instead will insert the corresponding
1252keycap symbol. The symbol will only be entered when the key has been 1281keycap symbol. The symbol will only be entered when the key has been
1253released, otherwise pressing e.g. C<Shift> would enter the symbol for 1282released, otherwise pressing e.g. C<Shift> would enter the symbol for
1254C<ISO Level 2 Switch>, although your intention might have been to enter a 1283C<ISO Level 2 Switch>, although your intention might have been to enter a
1255reverse tab (Shift-Tab). 1284reverse tab (Shift-Tab).
1256 1285
1289=head1 COLORS AND GRAPHICS 1318=head1 COLORS AND GRAPHICS
1290 1319
1291In addition to the default foreground and background colours, 1320In addition to the default foreground and background colours,
1292B<@@RXVT_NAME@@> can display up to 16 colours (8 ANSI colours plus 1321B<@@RXVT_NAME@@> can display up to 16 colours (8 ANSI colours plus
1293high-intensity bold/blink versions of the same). Here is a list of the 1322high-intensity bold/blink versions of the same). Here is a list of the
1294colours with their B<rgb.txt> names. 1323colours with their names.
1295 1324
1296=begin table 1325=begin table
1297 1326
1298 B<color0> (black) = Black 1327 B<color0> (black) = Black
1299 B<color1> (red) = Red3 1328 B<color1> (red) = Red3
1319It is also possible to specify the colour values of B<foreground>, 1348It is also possible to specify the colour values of B<foreground>,
1320B<background>, B<cursorColor>, B<cursorColor2>, B<colorBD>, B<colorUL> as 1349B<background>, B<cursorColor>, B<cursorColor2>, B<colorBD>, B<colorUL> as
1321a number 0-15, as a convenient shorthand to reference the colour name of 1350a number 0-15, as a convenient shorthand to reference the colour name of
1322color0-color15. 1351color0-color15.
1323 1352
1353In addition to the colours defined above, @@RXVT_NAME@@ offers an
1354additional 72 colours. The first 64 of those (with indices 16 to 79)
1355consist of a 4*4*4 RGB colour cube (i.e. I<index = r * 16 + g * 4 + b +
135616>), followed by 8 additional shades of gray (with indices 80 to 87).
1357
1358Together, all those colours implement the 88 colour xterm colours. Only
1359the first 16 can be changed using resources currently, the rest can only
1360be changed via command sequences ("escape codes").
1361
1324Note that B<-rv> (B<"reverseVideo: True">) simulates reverse video by 1362Note that B<-rv> (B<"reverseVideo: True">) simulates reverse video by
1325always swapping the foreground/background colours. This is in contrast to 1363always swapping the foreground/background colours. This is in contrast to
1326I<xterm>(1) where the colours are only swapped if they have not otherwise 1364I<xterm>(1) where the colours are only swapped if they have not otherwise
1327been specified. For example, 1365been specified. For example,
1328 1366
1333would yield White on Black, while on I<xterm>(1) it would yield Black 1371would yield White on Black, while on I<xterm>(1) it would yield Black
1334on White. 1372on White.
1335 1373
1336=back 1374=back
1337 1375
1376=head2 ALPHA CHANNEL SUPPORT
1377
1378If Xft support has been compiled in and as long as Xft/Xrender/X don't get
1379their act together, rxvt-unicode will support C<rgba:rrrr/gggg/bbbb/aaaa>
1380(recommended, but B<MUST> have 4 digits/component) colour specifications,
1381in addition to the ones provided by X, where the additional A component
1382specifies opacity (alpha) values. The minimum value of C<0> is completely
1383transparent). You can also prefix any color with C<[percent]>, where
1384C<percent> is a decimal percentage (0-100) that specifies the opacity of
1385the color, where C<0> is completely transparent and C<100> is completelxy
1386opaque.
1387
1388You probably need to specify B<"-depth 32">, too, and have the luck that
1389your X-server uses ARGB pixel layout, as X is far from just supporting
1390ARGB visuals out of the box, and rxvt-unicode just fudges around.
1391
1392For example, the following selects an almost completely transparent red
1393background, and an almost opaque pink foreground:
1394
1395 @@RXVT_NAME@@ -depth 32 -bg rgba:0000/0000/0000/aaaa -fg "[80]pink"
1396
1397I<Please note that transparency of any kind if completely unsupported by
1398the author. Don't bug him with installation questions!>
1399
1338=head1 ENVIRONMENT 1400=head1 ENVIRONMENT
1339 1401
1340B<@@RXVT_NAME@@> sets and/or uses the following environment variables: 1402B<@@RXVT_NAME@@> sets and/or uses the following environment variables:
1341 1403
1342=over 4 1404=over 4
1343 1405
1344=item B<TERM> 1406=item B<TERM>
1345 1407
1346Normally set to C<rxvt-unicode>, unless overwritten at configure time, via 1408Normally set to C<rxvt-unicode>, unless overwritten at configure time, via
1347resources or on the commandline. 1409resources or on the command line.
1348 1410
1349=item B<COLORTERM> 1411=item B<COLORTERM>
1350 1412
1351Either C<rxvt>, C<rxvt-xpm>, depending on wether @@RXVT_NAME@@ was 1413Either C<rxvt>, C<rxvt-xpm>, depending on whether @@RXVT_NAME@@ was
1352compiled with XPM support, and optionally with the added extension 1414compiled with XPM support, and optionally with the added extension
1353C<-mono> to indicate that rxvt-unicode runs on a monochrome screen. 1415C<-mono> to indicate that rxvt-unicode runs on a monochrome screen.
1354 1416
1355=item B<COLORFGBG> 1417=item B<COLORFGBG>
1356 1418
1374C<--with-terminfo=PATH>. 1436C<--with-terminfo=PATH>.
1375 1437
1376=item B<DISPLAY> 1438=item B<DISPLAY>
1377 1439
1378Used by @@RXVT_NAME@@ to connect to the display and set to the correct 1440Used by @@RXVT_NAME@@ to connect to the display and set to the correct
1379display in it's child processes. 1441display in its child processes.
1380 1442
1381=item B<SHELL> 1443=item B<SHELL>
1382 1444
1383The shell to be used for command execution, defaults to C</bin/sh>. 1445The shell to be used for command execution, defaults to C</bin/sh>.
1384 1446
1426 1488
1427=item Project Coordinator 1489=item Project Coordinator
1428 1490
1429Marc A. Lehmann L<< <rxvt-unicode@schmorp.de> >> 1491Marc A. Lehmann L<< <rxvt-unicode@schmorp.de> >>
1430 1492
1431L<http://software.schmorp.de/#rxvt-unicode> 1493L<http://software.schmorp.de/pkg/rxvt-unicode.html>
1432 1494
1433=back 1495=back
1434 1496
1435=head1 AUTHORS 1497=head1 AUTHORS
1436 1498
1471 1533
1472Project Coordinator (Changes 1.0 -) 1534Project Coordinator (Changes 1.0 -)
1473 1535
1474=item Emanuele Giaquinta L<< <e.giaquinta@glauco.it> >> 1536=item Emanuele Giaquinta L<< <e.giaquinta@glauco.it> >>
1475 1537
1476Pty/tty/utmp/wtmp rewrite, lots of random hacking and bugxifing. 1538Pty/tty/utmp/wtmp rewrite, lots of random hacking and bugfixing.
1477 1539
1478=back 1540=back
1479 1541

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