Package org.eclipse.swt.events
Interface KeyListener
- All Known Implementing Classes:
KeyAdapter
public interface KeyListener
Classes which implement this interface provide methods
that deal with the events that are generated as keys
are pressed on the system keyboard.
After creating an instance of a class that implements
this interface it can be added to a control using the
addKeyListener method and removed using
the removeKeyListener method. When a
key is pressed or released, the appropriate method will
be invoked.
- Since:
- 1.2
- See Also:
-
Method Summary
Modifier and TypeMethodDescriptionvoidSent when a key is pressed on the system keyboard.static KeyListenerStatic helper method to create aKeyListenerfor thekeyPressed(KeyEvent e)) method with a lambda expression.voidSent when a key is released on the system keyboard.static KeyListenerStatic helper method to create aKeyListenerfor thekeyReleased(KeyEvent e)) method with a lambda expression.
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Method Details
-
keyPressed
Sent when a key is pressed on the system keyboard.- Parameters:
e- an event containing information about the key press
-
keyReleased
Sent when a key is released on the system keyboard.- Parameters:
e- an event containing information about the key release
-
keyPressedAdapter
Static helper method to create aKeyListenerfor thekeyPressed(KeyEvent e)) method with a lambda expression.- Parameters:
c- the consumer of the event- Returns:
- KeyListener
- Since:
- 4.1
-
keyReleasedAdapter
Static helper method to create aKeyListenerfor thekeyReleased(KeyEvent e)) method with a lambda expression.- Parameters:
c- the consumer of the event- Returns:
- KeyListener
- Since:
- 4.1
-