Function that will be called when the user presses the backspace key.
Function that will be called when the user presses the comma key.
Function that will be called when the user presses the down key.
Function that will be called when the user presses the enter key.
Function that will be called when the user presses the esc key.
Function that will be called when the user presses any key.
Function that will be called when the user presses the left key.
Function that will be called when the user presses the right key.
Function that will be called when the user presses the shift key.
Function that will be called when the user presses the space key.
Function that will be called when the user presses the tab key.
Function that will be called when the user presses the up key.
Where to listen for the keyboard presses.