VT220 sequences
The following table shows the escape sequences that can be used for programming in VT220 mode. Eight bit CSI and SS3 sequences are also supported. Sequences in italic are accepted but have no effect or are unimplemented.
Note that any VT220 escape sequence can be used during KCML emulation by prefixing the sequence with the character HEX(02).
VT100 specific sequences
| Escape Codes | Description |
|---|---|
| NUL | Ignored |
| ENQ | Sends answerback |
| BEL | Generates a bell tone |
| BS | Non destructive backspace. If at left margin no action occurs |
| HT | Move to next tab stop or right margin if there are no more. Does not cause autowrap |
| LF | Causes line feed or new line depending on mode |
| VT | Processed as LF |
| FF | Processed as LF |
| SO | Invokes G1 character set into GL |
| SI | Invokes G0 character set into GL |
| CAN | Cancels any escape sequence |
| DEL | Ignored |
| ESC = | Sets the keypad to application mode |
| ESC > | Sets the keypad to numeric mode |
| ESC 7 | Saves the cursor position, attributes and character set |
| ESC 8 | Restores the cursor position, attributes and character set |
| ESC D | Moves the cursor down one line |
| ESC E | Moves the cursor to the first position one line down |
| ESC H | Sets a tab stop at current column |
| ESC M | Reverse index. Moves the cursor up one line in same column |
| ESC N | Temporarily invokes G2 character set into GL for the next character |
| ESC O | Temporarily invokes G2 character set into GL for the next character |
| ESC c | Resets the terminal |
| ESC g | Clears tab stop at current column |
| ESC # 3 | Double height line (top half) |
| ESC # 4 | Double height line (bottom half) |
| ESC # 5 | Single width line |
| ESC # 6 | Double width line |
| ESC # 8 | Fills the entire screen with E's (screen alignment test) |
| ESC ( 0 | Selects the graphics character set for G0 |
| ESC ) 0 | Selects the graphics character set for G1 |
| ESC ( A | Selects the UK character set for G0 |
| ESC ) A | Selects the UK character set for G1 |
| ESC ( B | Selects the ASCII character set for G0 |
| ESC ) B | Selects the ASCII character set for G1 |
| ESC [ ? n;...;n h | Sets one or more mode(s)
1 = cursor keys in application mode 2 = VT52 mode off 3 = 132 column on 4 = smooth scrolling on 5 = reverse video screen 6 = scrolling region origin mode on 7 = auto wrap on 8 = auto repeat on 25 = cursor on 70 = switch to KCML emulation 80 = switch to KCML emulation |
| ESC [ ? i | Dump screen to printer |
| ESC [ ? 1 i | Print line containing the cursor |
| ESC [ ? 4 i | Turns off autoprint mode |
| ESC [ ? 5 i | Turns on autoprint mode |
| ESC [ ? n;...;n l | Resets one or more mode(s)
1 = cursor keys in cursor mode 2 = VT52 mode on 3 = 80 column on 4 = jump scrolling on 5 = normal video screen 6 = screen origin mode on 7 = autowrap off 8 = auto repeat off 25 = cursor off 70 = switch to VT220 emulation 80 = switch to VT220 emulation |
| ESC [ n A | Moves the cursor up n lines |
| ESC [ n B | Moves the cursor down n lines |
| ESC [ n C | Moves the cursor n positions to the right |
| ESC [ n D | Moves the cursor n positions to the left |
| ESC [ r;c H | Positions the cursor at row r, column c |
| ESC [ r;c f | As above |
| ESC [ n J | Erases all or part of the screen.
0 = erases from current position to end of screen 1 = erases from start of screen to current position 2 = erases complete display |
| ESC [ n K | Erases all or part of a line.
0 = erases from current column to end of line 1 = erases from start of line to current column 2 = erases entire line |
| ESC [ c | Returns the terminal identification screen |
| ESC [ n g | Clears tab or all tabs depending on parameter |
| ESC [ n;...;n h | Sets one or more mode(s)
2 = keyboard locked 4 = insert mode on 12 = send/receive on 20 = new line mode |
| ESC [ 4 i | Revert output to screen |
| ESC [ 5 i | Divert output to local printer |
| ESC [ n;...;n l | Resets one or more mode(s)
2 = keyboard unlocked 4 = insert mode off 12 = send/receive off 20 = line feed new line mode |
| ESC [ n;...;n m | Selects the character attributes:
0 or none = all attributes off 1 = bold 4 = underline 5 = blink 7 = reverse video |
| ESC [ n n | Returns device status or cursor position
5 = "What is your status" 6 = "What is your cursor position" 15 = "What is the printer status" 25 = "What is the user defined key status" |
| ESC [ t;b r | Sets the top and bottom margins. Lines are counted from 1 |
| ESC [ n;m " p | Set the emulation/compatibility level
61= Set terminal to VT100 62= Set terminal to VT220, 8 bit 62;0= Set terminal to VT220, 8 bit 62;1= Set terminal to VT220, 7 bit 62;2= Set terminal to VT220, 8 bit |
| ESC [ ! p | Soft terminal reset |
VT220 specific sequences
| Escape Code | Description |
|---|---|
| ESC [ n L | Inserts n lines at the cursor |
| ESC [ n M | Deletes n lines at the cursor |
| ESC [ n @ | Insert n blank characters at the cursor |
| ESC [ n P | Deletes n characters at the cursor |
| ESC * B | Designate ASCII character set as G2 |
| ESC + B | Designate ASCII character set as G3 |
| ESC ( < | Invoke multinational character set into G0 |
| ESC ) < | Invoke multinational character set into G1 |
| ESC * < | Invoke multinational character set into G2 |
| ESC + < | Invoke multinational character set into G3 |
| ESC * O | Designate graphics character set as G2 |
| ESC + O | Designate graphics character set as G3 |
| ESC n | Invoke G2 into GL |
| ESC o | Invoke G3 into GL |
| ESC ~ | Invoke G1 into GR |
| ESC } | Invoke G2 into GR |
| ESC | | Invoke G3 into GR |
ANSI specific sequences
| Escape Code | Description |
|---|---|
| ESC [ n S | Scroll region up n lines, starting from cursor position |
| ESC [ n T | Scroll region down n lines, starting from cursor position |
| ESC [ n X | Erases n characters from cursor position |
| ESC [ n Z | Moves cursor position back n tab stops |
| ESC [ s | save cursor position |
| ESC [ u | restore cursor position |
| ESC [ n;..m | Set foreground/background Colors, where n is
30 = black foreground 31 = red foreground 32 = green foreground 33 = yellow foreground 34 = blue foreground 35 = magenta foreground 36 = cyan foreground 37 = white foreground 40 = black background 41 = red background 42 = green background 43 = yellow background 44 = blue background 45 = magenta background 46 = cyan background 47 = white background |