Key and door input routines. More...
#include <iostream>#include <termios.h>#include <unistd.h>#include "door.h"#include <signal.h>#include <ctype.h>
Include dependency graph for getkey.cpp:
Macros | |
| #define | CRNL "\r\n" |
| used by output routines. More... | |
Functions | |
| void | raw (void) |
| Enable terminal raw mode. More... | |
| void | reset (void) |
| Reset the terminal termios to the original values. | |
| signed int | getch (void) |
| low level getch key read More... | |
| void | unget (char c) |
| ungets (pushes key back) More... | |
| char | get (void) |
| get a key from the pushback buffer. More... | |
| signed int | getkey (void) |
| high level getkey More... | |
Variables | |
| struct termios | tio_default |
| Original terminal termios defaults. | |
| char | buffer [10] |
| pushback buffer to store keys we're not ready for yet. | |
| int | bpos = 0 |
| pushback buffer position | |
Detailed Description
Key and door input routines.
Macro Definition Documentation
◆ CRNL
| #define CRNL "\r\n" |
used by output routines.
Sending "\n" isn't enough.
Function Documentation
◆ get()
| char get | ( | void | ) |
get a key from the pushback buffer.
- Returns
- char
◆ getch()
| signed int getch | ( | void | ) |
low level getch key read
This reads a key with a defined timeout value. This is called by other routines to handle arrow keys, F-keys. returns -1 on timeout (no key), -2 on error (connection closed)
- Returns
- signed int
◆ getkey()
| signed int getkey | ( | void | ) |
high level getkey
This returns function keys, arrow keys, see XKEY_* defines. returns -1 (no key avaiable) or -2 (hangup) or XKEY_UNKNOWN (don't know what it is)
- Returns
- signed int
◆ raw()
| void raw | ( | void | ) |
Enable terminal raw mode.
This sets up the linux console so the door library will work correctly in local mode.
◆ unget()
| void unget | ( | char | c | ) |
ungets (pushes key back)
If we read ahead, and we can't use it, we push it back into the buffer for next time.
- Parameters
-
c
