What are the Functions Control Terminal Screen in PHP?

[Zavier]

Hi friends,
I have done basic coding in PHP programming language. I have used many basic functions while doing the coding. Now recently I have gone through the term of functions control terminal screen, which I have never heard before. So thought that you guys may help me in this topic. Please explain me what are the Functions Control Terminal Screen in PHP? Hope that someone will help me soon.!!

[kyosang]

ncurses (new curses, new sliders) are a free cursors emulation of System V Rel 4.0 (and higher). It uses terminfo format, supports numeric keypads, colors, multiple colors, the characters of form and function keys. Through the interactive nature of the library, there is no question of the use to write applications for the Web but, cons, it can be very interesting to write scripts on the command line. The features available, such as colors, depending on the terminal you are using. Use functions such as ncurses_has_colors (), ncurses_can_change_color () and ncurses_has_ic () to check the capabilities of your.

[Deabelos]

The following is the coding for writing a string with a specified color to the screen :

<?php 
ncurses_init (); 

if ( ncurses_has_colors ()) { 
ncurses_start_color (); 
ncurses_init_pair ( 1 , NCURSES_COLOR_GREEN , NCURSES_COLOR_BLUE ); 
ncurses_color_set ( 1 ); 
} 

ncurses_mvaddstr ( 15 , 15 , "Hello world! Green on blue text!" ); 

ncurses_refresh (); 

ncurses_end (); 
?>

[Solitario]

In case of error ncurses functions return -1. Some functions return 0 on success. The following are the Ncurses color constants :

• NCURSES_COLOR_BLACK - No color
• 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 mode
• NCURSES_COLOR_YELLOW - Yellow: supported when terminal is in color mode
• NCURSES_COLOR_BLUE - Blue: supported when terminal is in color mode

[Warner]

I have provided you with a Ncurses key constants, which can be very useful in doing the coding. The following are the Ncurses key constants :

• NCURSES_KEY_F0 - NCURSES_KEY_F64
• NCURSES_KEY_DOWN
• NCURSES_KEY_UP
• NCURSES_KEY_RIGHT
• NCURSES_KEY_LEFT
• NCURSES_KEY_BACKSPACE
• NCURSES_KEY_HOME
• NCURSES_KEY_IL
• NCURSES_KEY_IC
• NCURSES_KEY_CLEAR

[MindSpace]

While doing the functions control you should also be having knowledge about the Mouse constants. The following is the list of the mouse constants that are commonly used :

• NCURSES_BUTTON1_RELEASED - NCURSES_BUTTON4_RELEASED
• NCURSES_BUTTON1_PRESSED - NCURSES_BUTTON4_PRESSED
• NCURSES_BUTTON1_CLICKED - NCURSES_BUTTON4_CLICKED
• NCURSES_BUTTON1_DOUBLE_CLICKED - NCURSES_BUTTON4_DOUBLE_CLICKED
• NCURSES_BUTTON1_TRIPLE_CLICKED - NCURSES_BUTTON4_TRIPLE_CLICKED
• NCURSES_ALL_MOUSE_EVENTS
• NCURSES_REPORT_MOUSE_POSITION