Keyboard

releaseAll()

// SYNTAX
Keyboard.releaseAll();

Releases any previously pressed keyboard keys and modifier keys.

// EXAMPLE USAGE
STARTUP(Keyboard.begin());

void setup() {
  // Press Ctrl, then Alt, then Delete and release them all
  Keyboard.press(KEY_LCTRL);
  Keyboard.press(KEY_LALT);
  Keyboard.press(KEY_DELETE);
  Keyboard.releaseAll();
}

This function takes no parameters and does not return anything.