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key_defined(3ncurses) [bsd man page]

key_defined(3NCURSES)													     key_defined(3NCURSES)

NAME
key_defined - check if a keycode is defined SYNOPSIS
#include <curses.h> int key_defined(const char *definition); DESCRIPTION
This is an extension to the curses library. It permits an application to determine if a string is currently bound to any keycode. RETURN VALUE
If the string is bound to a keycode, its value (greater than zero) is returned. If no keycode is bound, zero is returned. If the string conflicts with longer strings which are bound to keys, -1 is returned. PORTABILITY
These routines are specific to ncurses. They were not supported on Version 7, BSD or System V implementations. It is recommended that any code depending on them be conditioned using NCURSES_VERSION. SEE ALSO
define_key(3NCURSES). AUTHOR
Thomas Dickey. key_defined(3NCURSES)

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define_key(3NCURSES)													      define_key(3NCURSES)

NAME
define_key - define a keycode SYNOPSIS
#include <curses.h> int define_key(const char *definition, int keycode); DESCRIPTION
This is an extension to the curses library. It permits an application to define keycodes with their corresponding control strings, so that the ncurses library will interpret them just as it would the predefined codes in the terminfo database. If the given string is null, any existing definition for the keycode is removed. Similarly, if the given keycode is negative or zero, any existing string for the given definition is removed. RETURN VALUE
The keycode must be greater than zero, and the string non-null, otherwise ERR is returned. ERR may also be returned if there is insuffi- cient memory to allocate the data to store the definition. If no error is detected, OK is returned. PORTABILITY
These routines are specific to ncurses. They were not supported on Version 7, BSD or System V implementations. It is recommended that any code depending on them be conditioned using NCURSES_VERSION. SEE ALSO
keyok(3NCURSES), key_defined(3NCURSES). AUTHOR
Thomas Dickey. define_key(3NCURSES)

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