curs_instr - Online Linux Manual PageSection : 3X
Updated :

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NAMEinstr, innstr, winstr, winnstr, mvinstr, mvinnstr, mvwinstr, mvwinnstr − get a string of characters from a curses window

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SYNOPSIS#include <curses.h> int instr(char *str);
int innstr(char *str, int n);
int winstr(WINDOW *win, char *str);
int winnstr(WINDOW *win, char *str, int n); int mvinstr(int y, int x, char *str);
int mvinnstr(int y, int x, char *str, int n);
int mvwinstr(WINDOW *win, int y, int x, char *str);
int mvwinnstr(WINDOW *win, int y, int x, char *str, int n);

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DESCRIPTIONThese routines return a string of characters in str, extracted starting at the current cursor position in the named window. Attributes are stripped from the characters. The four functions with n as the last argument return a leading substring at most n characters long (exclusive of the trailing NUL).

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RETURN VALUEAll of the functions return ERR upon failure, or the number of characters actually read into the string. X/Open Curses defines no error conditions. In this implementation: • If the win parameter is null, an error is returned, • If the chstr parameter is null, an error is returned, Functions with a ‟mv” prefix first perform a cursor movement using wmove, and return an error if the position is outside the window, or if the window pointer is null.

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NOTESNote that all routines except winnstr may be macros.

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PORTABILITYSVr4 does not document whether a length limit includes or excludes the trailing NUL. The ncurses library extends the XSI description by allowing a negative value for n. In this case, the functions return the string ending at the right margin.

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SEE ALSOcurses(3X). 0

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