Keys (leJOS EV3 API documentation)

All Known Implementing Classes:

RemoteKeys, RemoteRequestKeys
```
public interface Keys
```

Field Summary

Fields
Modifier and Type	Field	Description
`static java.lang.String`	`FREQ_SETTING`
`static int`	`ID_ALL`
`static int`	`ID_DOWN`
`static int`	`ID_ENTER`
`static int`	`ID_ESCAPE`
`static int`	`ID_LEFT`
`static int`	`ID_RIGHT`
`static int`	`ID_UP`
`static java.lang.String`	`LEN_SETTING`
`static int`	`NUM_KEYS`
`static java.lang.String`	`VOL_SETTING`

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`discardEvents()`
`int`	`getButtons()`
`int`	`getKeyClickLength()`
`int`	`getKeyClickTone(int key)`
`int`	`getKeyClickVolume()`
`int`	`readButtons()`
`void`	`setKeyClickLength(int len)`
`void`	`setKeyClickTone(int key, int freq)`
`void`	`setKeyClickVolume(int vol)`
`int`	`waitForAnyEvent()`
`int`	`waitForAnyEvent(int timeout)`
`int`	`waitForAnyPress()`
`int`	`waitForAnyPress(int timeout)`

Field Detail
- ID_UP
```
static final int ID_UP
```
  See Also:
  
  Constant Field Values
- ID_ENTER
```
static final int ID_ENTER
```
  See Also:
  
  Constant Field Values
- ID_DOWN
```
static final int ID_DOWN
```
  See Also:
  
  Constant Field Values
- ID_RIGHT
```
static final int ID_RIGHT
```
  See Also:
  
  Constant Field Values
- ID_LEFT
```
static final int ID_LEFT
```
  See Also:
  
  Constant Field Values
- ID_ESCAPE
```
static final int ID_ESCAPE
```
  See Also:
  
  Constant Field Values
- ID_ALL
```
static final int ID_ALL
```
  See Also:
  
  Constant Field Values
- NUM_KEYS
```
static final int NUM_KEYS
```
  See Also:
  
  Constant Field Values
- VOL_SETTING
```
static final java.lang.String VOL_SETTING
```
  See Also:
  
  Constant Field Values
- LEN_SETTING
```
static final java.lang.String LEN_SETTING
```
  See Also:
  
  Constant Field Values
- FREQ_SETTING
```
static final java.lang.String FREQ_SETTING
```
  See Also:
  
  Constant Field Values

Method Detail

discardEvents
```
void discardEvents()
```

waitForAnyEvent
```
int waitForAnyEvent()
```

waitForAnyEvent
```
int waitForAnyEvent(int timeout)
```

waitForAnyPress
```
int waitForAnyPress(int timeout)
```

waitForAnyPress
```
int waitForAnyPress()
```

getButtons
```
int getButtons()
```

readButtons
```
int readButtons()
```

setKeyClickVolume
```
void setKeyClickVolume(int vol)
```

getKeyClickVolume
```
int getKeyClickVolume()
```

setKeyClickLength
```
void setKeyClickLength(int len)
```

getKeyClickLength
```
int getKeyClickLength()
```

setKeyClickTone

void setKeyClickTone(int key,
                     int freq)

getKeyClickTone
```
int getKeyClickTone(int key)
```