| VT100 escape codesVT100 escape codes | |
| This document describes how to control a VT100 terminal. The entries are of the | |
| form "name, description, escape code". | |
| The name isn't important, and the description is just to help you find what | |
| you're looking for. What you have to do is send the "escape code" to the screen. | |
| These codes are often several characters long, but they all begin with ^[. This | |
| isn't the two characters ^ and [, but rather a representation of the ASCII code | |
| ESC (which is why these are called escape codes). | |
| ESC has the decimal value 27 and should be sent before the rest of the code, | |
| which is simply an ASCII string. | |
| As an example of how to use this information, here's how to clear the screen in | |
| C, using the VT100 escape codes: | |
| #define ASCII_ESC 27 | |
| printf( "%c[2J", ASCII_ESC ); | |
| or | |
| puts( "\033[2J" ); | |
| Name Description Esc Code | |
| setnl LMN Set new line mode ^[[20h | |
| setappl DECCKM Set cursor key to application ^[[?1h | |
| setansi DECANM Set ANSI (versus VT52) none | |
| setcol DECCOLM Set number of columns to 132 ^[[?3h | |
| setsmooth DECSCLM Set smooth scrolling ^[[?4h | |
| setrevscrn DECSCNM Set reverse video on screen ^[[?5h | |
| setorgrel DECOM Set origin to relative ^[[?6h | |
| setwrap DECAWM Set auto-wrap mode ^[[?7h | |
| setrep DECARM Set auto-repeat mode ^[[?8h | |
| setinter DECINLM Set interlacing mode ^[[?9h | |
| setlf LMN Set line feed mode ^[[20l | |
| setcursor DECCKM Set cursor key to cursor ^[[?1l | |
| setvt52 DECANM Set VT52 (versus ANSI) ^[[?2l | |
| resetcol DECCOLM Set number of columns to 80 ^[[?3l | |
| setjump DECSCLM Set jump scrolling ^[[?4l | |
| setnormscrn DECSCNM Set normal video on screen ^[[?5l | |
| setorgabs DECOM Set origin to absolute ^[[?6l | |
| resetwrap DECAWM Reset auto-wrap mode ^[[?7l | |
| resetrep DECARM Reset auto-repeat mode ^[[?8l | |
| resetinter DECINLM Reset interlacing mode ^[[?9l | |
| altkeypad DECKPAM Set alternate keypad mode ^[= | |
| numkeypad DECKPNM Set numeric keypad mode ^[> | |
| setukg0 Set United Kingdom G0 character set ^[(A | |
| setukg1 Set United Kingdom G1 character set ^[)A | |
| setusg0 Set United States G0 character set ^[(B | |
| setusg1 Set United States G1 character set ^[)B | |
| setspecg0 Set G0 special chars. & line set ^[(0 | |
| setspecg1 Set G1 special chars. & line set ^[)0 | |
| setaltg0 Set G0 alternate character ROM ^[(1 | |
| setaltg1 Set G1 alternate character ROM ^[)1 | |
| setaltspecg0 Set G0 alt char ROM and spec. graphics ^[(2 | |
| setaltspecg1 Set G1 alt char ROM and spec. graphics ^[)2 | |
| setss2 SS2 Set single shift 2 ^[N | |
| setss3 SS3 Set single shift 3 ^[O | |
| modesoff SGR0 Turn off character attributes ^[[m | |
| modesoff SGR0 Turn off character attributes ^[[0m | |
| bold SGR1 Turn bold mode on ^[[1m | |
| lowint SGR2 Turn low intensity mode on ^[[2m | |
| underline SGR4 Turn underline mode on ^[[4m | |
| blink SGR5 Turn blinking mode on ^[[5m | |
| reverse SGR7 Turn reverse video on ^[[7m | |
| invisible SGR8 Turn invisible text mode on ^[[8m | |
| setwin DECSTBM Set top and bottom line#s of a window ^[[<v>;<v>r | |
| cursorup(n) CUU Move cursor up n lines ^[[<n>A | |
| cursordn(n) CUD Move cursor down n lines ^[[<n>B | |
| cursorrt(n) CUF Move cursor right n lines ^[[<n>C | |
| cursorlf(n) CUB Move cursor left n lines ^[[<n>D | |
| cursorhome Move cursor to upper left corner ^[[H | |
| cursorhome Move cursor to upper left corner ^[[;H | |
| cursorpos(v,h) CUP Move cursor to screen location v,h ^[[<v>;<h>H | |
| hvhome Move cursor to upper left corner ^[[f | |
| hvhome Move cursor to upper left corner ^[[;f | |
| hvpos(v,h) CUP Move cursor to screen location v,h ^[[<v>;<h>f | |
| index IND Move/scroll window up one line ^[D | |
| revindex RI Move/scroll window down one line ^[M | |
| nextline NEL Move to next line ^[E | |
| savecursor DECSC Save cursor position and attributes ^[7 | |
| restorecursor DECSC Restore cursor position and attributes ^[8 | |
| tabset HTS Set a tab at the current column ^[H | |
| tabclr TBC Clear a tab at the current column ^[[g | |
| tabclr TBC Clear a tab at the current column ^[[0g | |
| tabclrall TBC Clear all tabs ^[[3g | |
| dhtop DECDHL Double-height letters, top half ^[#3 | |
| dhbot DECDHL Double-height letters, bottom half ^[#4 | |
| swsh DECSWL Single width, single height letters ^[#5 | |
| dwsh DECDWL Double width, single height letters ^[#6 | |
| cleareol EL0 Clear line from cursor right ^[[K | |
| cleareol EL0 Clear line from cursor right ^[[0K | |
| clearbol EL1 Clear line from cursor left ^[[1K | |
| clearline EL2 Clear entire line ^[[2K | |
| cleareos ED0 Clear screen from cursor down ^[[J | |
| cleareos ED0 Clear screen from cursor down ^[[0J | |
| clearbos ED1 Clear screen from cursor up ^[[1J | |
| clearscreen ED2 Clear entire screen ^[[2J | |
| devstat DSR Device status report ^[5n | |
| termok DSR Response: terminal is OK ^[0n | |
| termnok DSR Response: terminal is not OK ^[3n | |
| getcursor DSR Get cursor position ^[6n | |
| cursorpos CPR Response: cursor is at v,h ^[<v>;<h>R | |
| ident DA Identify what terminal type ^[[c | |
| ident DA Identify what terminal type (another) ^[[0c | |
| gettype DA Response: terminal type code n ^[[?1;<n>0c | |
| reset RIS Reset terminal to initial state ^[c | |
| align DECALN Screen alignment display ^[#8 | |
| testpu DECTST Confidence power up test ^[[2;1y | |
| testlb DECTST Confidence loopback test ^[[2;2y | |
| testpurep DECTST Repeat power up test ^[[2;9y | |
| testlbrep DECTST Repeat loopback test ^[[2;10y | |
| ledsoff DECLL0 Turn off all four leds ^[[0q | |
| led1 DECLL1 Turn on LED #1 ^[[1q | |
| led2 DECLL2 Turn on LED #2 ^[[2q | |
| led3 DECLL3 Turn on LED #3 ^[[3q | |
| led4 DECLL4 Turn on LED #4 ^[[4q | |
| # | |
| # All codes below are for use in VT52 compatibility mode. | |
| # | |
| setansi Enter/exit ANSI mode (VT52) ^[< | |
| altkeypad Enter alternate keypad mode ^[= | |
| numkeypad Exit alternate keypad mode ^[> | |
| setgr Use special graphics character set ^[F | |
| resetgr Use normal US/UK character set ^[G | |
| cursorup Move cursor up one line ^[A | |
| cursordn Move cursor down one line ^[B | |
| cursorrt Move cursor right one char ^[C | |
| cursorlf Move cursor left one char ^[D | |
| cursorhome Move cursor to upper left corner ^[H | |
| cursorpos(v,h) Move cursor to v,h location ^[<v><h> | |
| revindex Generate a reverse line-feed ^[I | |
| cleareol Erase to end of current line ^[K | |
| cleareos Erase to end of screen ^[J | |
| ident Identify what the terminal is ^[Z | |
| identresp Correct response to ident ^[/Z | |
| <hr> | |
| # | |
| # VT100 Special Key Codes | |
| # | |
| # These are sent from the terminal back to the computer when the | |
| # particular key is pressed. Note that the numeric keypad keys | |
| # send different codes in numeric mode than in alternate mode. | |
| # See escape codes above to change keypad mode. | |
| # | |
| # Function Keys: | |
| PF1 ^[OP | |
| PF2 ^[OQ | |
| PF3 ^[OR | |
| PF4 ^[OS | |
| # Arrow Keys: | |
| Reset Set | |
| ----- --- | |
| up ^[A ^[OA | |
| down ^[B ^[OB | |
| right ^[C ^[OC | |
| left ^[D ^[OD | |
| # Numeric Keypad Keys: | |
| Keypad Mode | |
| ----------------- | |
| Keypad Key Numeric Alternate | |
| ---------- ------- --------- | |
| 0 0 ^[Op | |
| 1 1 ^[Oq | |
| 2 2 ^[Or | |
| 3 3 ^[Os | |
| 4 4 ^[Ot | |
| 5 5 ^[Ou | |
| 6 6 ^[Ov | |
| 7 7 ^[Ow | |
| 8 8 ^[Ox | |
| 9 9 ^[Oy | |
| - (minus) - ^[Om | |
| , (comma) , ^[Ol | |
| . (period) . ^[On | |
| ENTER ^M ^[OM | |
| C27, 033, 0x1b | |
| English27 decimal, 33 octal, 1b hexadecimal | |