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LXVII. Ncurses terminal screen control functions

Introduction

ncurses (new curses) is a free software emulation of curses in System V Rel 4.0 (and above). It uses terminfo format, supports pads, colors, multiple highlights, form characters and function key mapping. Because of the interactive nature of this library, it will be of little use for writing Web applications, but may be useful when writing scripts meant using PHP from the command line.

Warning

This extension is EXPERIMENTAL. The behaviour of this extension -- including the names of its functions and anything else documented about this extension -- may change without notice in a future release of PHP. Use this extension at your own risk.

Ncurses is available for the following platforms:

  • AIX

  • BeOS

  • Cygwin

  • Digital Unix (aka OSF1)

  • FreeBSD

  • GNU/Linux

  • HPUX

  • IRIX

  • OS/2

  • SCO OpenServer

  • Solaris

  • SunOS

Requirements

You need the ncurses libraries and headerfiles. Download the latest version from the ftp://ftp.gnu.org/pub/gnu/ncurses/ or from an other GNU-Mirror.

Installation

To get these functions to work, you have to compile the CGI or CLI version of PHP with --with-ncurses[=DIR].

Runtime Configuration

The behaviour of these functions is affected by settings in php.ini.

Table 1. Ncurses configuration options

Name Default Changeable
ncurses.value "42" PHP_INI_ALL
ncurses.string "foobar" PHP_INI_ALL
For further details and definition of the PHP_INI_* constants see ini_set().

Resource Types

This extension has no resource types defined.

Predefined Constants

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

Error codes

On error ncurses functions return NCURSES_ERR.

Colors

Table 2. ncurses color constants

constant meaning
NCURSES_COLOR_BLACK no color (black)
NCURSES_COLOR_WHITE white
NCURSES_COLOR_RED red - supported when terminal is in color mode
NCURSES_COLOR_GREEN green - supported when terminal is in color mod
NCURSES_COLOR_YELLOW yellow - supported when terminal is in color mod
NCURSES_COLOR_BLUE blue - supported when terminal is in color mod
NCURSES_COLOR_CYAN cyan - supported when terminal is in color mod
NCURSES_COLOR_MAGENTA magenta - supported when terminal is in color mod

Keys

Table 3. ncurses key constants

constant meaning
NCURSES_KEY_F0 - NCURSES_KEY_F64 function keys F1 - F64
NCURSES_KEY_DOWN down arrow
NCURSES_KEY_UP up arrow
NCURSES_KEY_LEFT left arrow
NCURSES_KEY_RIGHT right arrow
NCURSES_KEY_HOME home key (upward+left arrow)
NCURSES_KEY_BACKSPACE backspace
NCURSES_KEY_DL delete line
NCURSES_KEY_IL insert line
NCURSES_KEY_DC delete character
NCURSES_KEY_IC insert char or enter insert mode
NCURSES_KEY_EIC exit insert char mode
NCURSES_KEY_CLEAR clear screen
NCURSES_KEY_EOS clear to end of screen
NCURSES_KEY_EOL clear to end of line
NCURSES_KEY_SF scroll one line forward
NCURSES_KEY_SR scroll one line backward
NCURSES_KEY_NPAGE next page
NCURSES_KEY_PPAGE previous page
NCURSES_KEY_STAB set tab
NCURSES_KEY_CTAB clear tab
NCURSES_KEY_CATAB clear all tabs
NCURSES_KEY_SRESET soft (partial) reset
NCURSES_KEY_RESET reset or hard reset
NCURSES_KEY_PRINT print
NCURSES_KEY_LL lower left
NCURSES_KEY_A1 upper left of keypad
NCURSES_KEY_A3 upper right of keypad
NCURSES_KEY_B2 center of keypad
NCURSES_KEY_C1 lower left of keypad
NCURSES_KEY_C3 lower right of keypad
NCURSES_KEY_BTAB back tab
NCURSES_KEY_BEG beginning
NCURSES_KEY_CANCEL cancel
NCURSES_KEY_CLOSE close
NCURSES_KEY_COMMAND cmd (command)
NCURSES_KEY_COPY copy
NCURSES_KEY_CREATE create
NCURSES_KEY_END end
NCURSES_KEY_EXIT exit
NCURSES_KEY_FIND find
NCURSES_KEY_HELP help
NCURSES_KEY_MARK mark
NCURSES_KEY_MESSAGE message
NCURSES_KEY_MOVE move
NCURSES_KEY_NEXT next
NCURSES_KEY_OPEN open
NCURSES_KEY_OPTIONS options
NCURSES_KEY_PREVIOUS previous
NCURSES_KEY_REDO redo
NCURSES_KEY_REFERENCE ref (reference)
NCURSES_KEY_REFRESH refresh
NCURSES_KEY_REPLACE replace
NCURSES_KEY_RESTART restart
NCURSES_KEY_RESUME resume
NCURSES_KEY_SAVE save
NCURSES_KEY_SBEG shiftet beg (beginning)
NCURSES_KEY_SCANCEL shifted cancel
NCURSES_KEY_SCOMMAND shifted command
NCURSES_KEY_SCOPY shifted copy
NCURSES_KEY_SCREATE shifted create
NCURSES_KEY_SDC shifted delete char
NCURSES_KEY_SDL shifted delete line
NCURSES_KEY_SELECT select
NCURSES_KEY_SEND shifted end
NCURSES_KEY_SEOL shifted end of line
NCURSES_KEY_SEXIT shifted exit
NCURSES_KEY_SFIND shifted find
NCURSES_KEY_SHELP shifted help
NCURSES_KEY_SHOME shifted home
NCURSES_KEY_SIC shifted input
NCURSES_KEY_SLEFT shifted left arrow
NCURSES_KEY_SMESSAGE shifted message
NCURSES_KEY_SMOVE shifted move
NCURSES_KEY_SNEXT shifted next
NCURSES_KEY_SOPTIONS shifted options
NCURSES_KEY_SPREVIOUS shifted previous
NCURSES_KEY_SPRINT shifted print
NCURSES_KEY_SREDO shifted redo
NCURSES_KEY_SREPLACE shifted replace
NCURSES_KEY_SRIGHT shifted right arrow
NCURSES_KEY_SRSUME shifted resume
NCURSES_KEY_SSAVE shifted save
NCURSES_KEY_SSUSPEND shifted suspend
NCURSES_KEY_UNDO undo
NCURSES_KEY_MOUSE mouse event has occured
NCURSES_KEY_MAX maximum key value

Mouse

Table 4. mouse constants

Constant meaning
NCURSES_BUTTON1_RELEASED - NCURSES_BUTTON4_RELEASED button (1-4) released
NCURSES_BUTTON1_PRESSED - NCURSES_BUTTON4_PRESSED button (1-4) pressed
NCURSES_BUTTON1_CLICKED - NCURSES_BUTTON4_CLICKED button (1-4) clicked
NCURSES_BUTTON1_DOUBLE_CLICKED - NCURSES_BUTTON4_DOUBLE_CLICKED button (1-4) double clicked
NCURSES_BUTTON1_TRIPLE_CLICKED - NCURSES_BUTTON4_TRIPLE_CLICKED button (1-4) triple clicked
NCURSES_BUTTON_CTRL ctrl pressed during click
NCURSES_BUTTON_SHIFT shift pressed during click
NCURSES_BUTTON_ALT alt pressed during click
NCURSES_ALL_MOUSE_EVENTS report all mouse events
NCURSES_REPORT_MOUSE_POSITION report mouse position
Table of Contents
ncurses_addch -- Add character at current position and advance cursor
ncurses_addchnstr -- Add attributed string with specified length at current position
ncurses_addchstr -- Add attributed string at current position
ncurses_addnstr -- Add string with specified length at current position
ncurses_addstr -- Output text at current position
ncurses_assume_default_colors -- Define default colors for color 0
ncurses_attroff -- Turn off the given attributes
ncurses_attron -- Turn on the given attributes
ncurses_attrset -- Set given attributes
ncurses_baudrate -- Returns baudrate of terminal
ncurses_beep -- Let the terminal beep
ncurses_bkgd -- Set background property for terminal screen
ncurses_bkgdset -- Control screen background
ncurses_border -- Draw a border around the screen using attributed characters
ncurses_can_change_color -- Check if we can change terminals colors
ncurses_cbreak -- Switch of input buffering
ncurses_clear -- Clear screen
ncurses_clrtobot -- Clear screen from current position to bottom
ncurses_clrtoeol -- Clear screen from current position to end of line
ncurses_color_set -- Set fore- and background color
ncurses_curs_set -- Set cursor state
ncurses_def_prog_mode -- Saves terminals (program) mode
ncurses_def_shell_mode -- Saves terminals (shell) mode
ncurses_define_key -- Define a keycode
ncurses_delay_output -- Delay output on terminal using padding characters
ncurses_delch -- Delete character at current position, move rest of line left
ncurses_deleteln -- Delete line at current position, move rest of screen up
ncurses_delwin -- Delete a ncurses window
ncurses_doupdate -- Write all prepared refreshes to terminal
ncurses_echo -- Activate keyboard input echo
ncurses_echochar -- Single character output including refresh
ncurses_end -- Stop using ncurses, clean up the screen
ncurses_erase -- Erase terminal screen
ncurses_erasechar -- Returns current erase character
ncurses_filter -- 
ncurses_flash -- Flash terminal screen (visual bell)
ncurses_flushinp -- Flush keyboard input buffer
ncurses_getch -- Read a character from keyboard
ncurses_getmouse -- Reads mouse event
ncurses_halfdelay -- Put terminal into halfdelay mode
ncurses_has_colors -- Check if terminal has colors
ncurses_has_ic -- Check for insert- and delete-capabilities
ncurses_has_il -- Check for line insert- and delete-capabilities
ncurses_has_key -- Check for presence of a function key on terminal keyboard
ncurses_hline -- Draw a horizontal line at current position using an attributed character and max. n characters long
ncurses_inch -- Get character and attribute at current position
ncurses_init_color -- Set new RGB value for color
ncurses_init_pair -- Allocate a color pair
ncurses_init -- Initialize ncurses
ncurses_insch -- Insert character moving rest of line including character at current position
ncurses_insdelln -- Insert lines before current line scrolling down (negative numbers delete and scroll up)
ncurses_insertln -- Insert a line, move rest of screen down
ncurses_insstr -- Insert string at current position, moving rest of line right
ncurses_instr -- Reads string from terminal screen
ncurses_isendwin -- Ncurses is in endwin mode, normal screen output may be performed
ncurses_keyok -- Enable or disable a keycode
ncurses_killchar -- Returns current line kill character
ncurses_longname -- Returns terminals description
ncurses_mouseinterval -- Set timeout for mouse button clicks
ncurses_mousemask -- Sets mouse options
ncurses_move -- Move output position
ncurses_mvaddch -- Move current position and add character
ncurses_mvaddchnstr -- Move position and add attrributed string with specified length
ncurses_mvaddchstr -- Move position and add attributed string
ncurses_mvaddnstr -- Move position and add string with specified length
ncurses_mvaddstr -- Move position and add string
ncurses_mvcur -- Move cursor immediately
ncurses_mvdelch -- Move position and delete character, shift rest of line left
ncurses_mvgetch -- Move position and get character at new position
ncurses_mvhline -- Set new position and draw a horizontal line using an attributed character and max. n characters long
ncurses_mvinch -- Move position and get attributed character at new position
ncurses_mvvline -- Set new position and draw a vertical line using an attributed character and max. n characters long
ncurses_mvwaddstr -- Add string at new position in window
ncurses_napms -- Sleep
ncurses_newwin -- Create a new window
ncurses_nl -- Translate newline and carriage return / line feed
ncurses_nocbreak -- Switch terminal to cooked mode
ncurses_noecho -- Switch off keyboard input echo
ncurses_nonl -- Do not translate newline and carriage return / line feed
ncurses_noqiflush -- Do not flush on signal characters
ncurses_noraw -- Switch terminal out of raw mode
ncurses_putp -- 
ncurses_qiflush -- Flush on signal characters
ncurses_raw -- Switch terminal into raw mode
ncurses_refresh -- Refresh screen
ncurses_resetty -- Restores saved terminal state
ncurses_savetty -- Saves terminal state
ncurses_scr_dump -- Dump screen content to file
ncurses_scr_init -- Initialize screen from file dump
ncurses_scr_restore -- Restore screen from file dump
ncurses_scr_set -- Inherit screen from file dump
ncurses_scrl -- Scroll window content up or down without changing current position
ncurses_slk_attr -- Returns current soft label key attribute
ncurses_slk_attroff -- 
ncurses_slk_attron -- 
ncurses_slk_attrset -- 
ncurses_slk_clear -- Clears soft labels from screen
ncurses_slk_color -- Sets color for soft label keys
ncurses_slk_init -- Initializes soft label key functions
ncurses_slk_noutrefresh -- Copies soft label keys to virtual screen
ncurses_slk_refresh -- Copies soft label keys to screen
ncurses_slk_restore -- Restores soft label keys
ncurses_slk_touch -- Fources output when ncurses_slk_noutrefresh is performed
ncurses_standend -- Stop using 'standout' attribute
ncurses_standout -- Start using 'standout' attribute
ncurses_start_color -- Start using colors
ncurses_termattrs -- Returns a logical OR of all attribute flags supported by terminal
ncurses_termname -- Returns terminals (short)-name
ncurses_timeout -- Set timeout for special key sequences
ncurses_typeahead -- Specify different filedescriptor for typeahead checking
ncurses_ungetch -- Put a character back into the input stream
ncurses_ungetmouse -- Pushes mouse event to queue
ncurses_use_default_colors -- Assign terminal default colors to color id -1
ncurses_use_env -- Control use of environment information about terminal size
ncurses_use_extended_names -- Control use of extended names in terminfo descriptions
ncurses_vidattr -- 
ncurses_vline -- Draw a vertical line at current position using an attributed character and max. n characters long
ncurses_wrefresh -- Refresh window on terminal screen