Keyboard Class

Namespace: GHIElectronics.TinyCLR.Devices.UsbHost · Assembly: GHIElectronics.TinyCLR.Devices.UsbHost

Allows a usb device to be used as a keyboard.

public class Keyboard : BaseDevice

Constructors

Keyboard(uint id, byte interfaceIndex)

public Keyboard(uint id, byte interfaceIndex) : base(id, interfaceIndex, DeviceType.Keyboard)

Creates a new keyboard.

Parameter	Type	Description
id	uint	The device id.
interfaceIndex	byte	The device interface index.

Methods

IsKeyPressed(Key key)

public KeyState IsKeyPressed(Key key)

Gets the current state of a key.

Parameter	Type	Description
key	Key	The key to query.

Returns KeyState — The state of the key.

Dispose(bool disposing)

protected override void Dispose(bool disposing)

Disposes the keyboard.

Parameter	Type	Description
disposing	bool	Whether or not this is called from Dispose.

CheckEvents(object sender)

protected override void CheckEvents(object sender)

Repeatedly called with a period defined by WorkerInterval. Used to poll the device for data and raise any desired events.

Parameter	Type	Description
sender	object	Always null.

Events

KeyUp

public event KeyboardEventHandler KeyUp

Fired when a key is released.

KeyDown

public event KeyboardEventHandler KeyDown

Fired when a key is pressed.

CharUp

public event KeyboardEventHandler CharUp

Fired when a key is released and it can be converted to ASCII.

CharDown

public event KeyboardEventHandler CharDown

Fired when a key is pressed and it can be converted to ASCII.