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USBHost : KeyboardController class
getModifiers()
Description
Reports any modifier keys pressed or released on an attached USB keyboard.
Syntax
keyboard.getModifiers()
Parameters
none
Returns
int : a numeric representation of the modifier keys being pressed. Values for the keys are below.
- LeftCtrl = 1
- LeftShift = 2
- Alt = 4
- LeftCmd = 8
- RightCtrl = 16
- RightShift = 32
- AltGr = 64
- RightCmd = 128
Example
#include <KeyboardController.h>
// Initialize USB Controller
USBHost usb;
// Attach Keyboard controller to USB
KeyboardController keyboard(usb);
void setup(){
Serial.begin(9600);
}
void loop(){
usb.Task();
int mod = keyboard.getModifiers();
Serial.print("mod: ");
Serial.print(mod);
}
// Initialize USB Controller
USBHost usb;
// Attach Keyboard controller to USB
KeyboardController keyboard(usb);
void setup(){
Serial.begin(9600);
}
void loop(){
usb.Task();
int mod = keyboard.getModifiers();
Serial.print("mod: ");
Serial.print(mod);
}
See Also
- keyPressed()
- keyReleased()
- getKey()
- getOemKey()
- KeyboardController example
Reference Home
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The text of the Arduino reference is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.
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