(define-gboxed-variant-cstruct event "GdkEvent"
  (type event-type)
  (window (g:object window))
  (send-event (:boolean :int8))
  (:variant type
            ...
            ((:key-press :key-release) event-key
             (time :uint32)
             (state modifier-type)
             (keyval :uint)
             (length :int)
             (string (:string :free-from-foreign nil
                              :free-to-foreign nil))
             (hardware-keycode :uint16)
             (group :uint8)
             (is-modifier :uint))
  ... ))  

type

The gdk:event-type type of the event, one of the :key-press, :key-release values.

window

The gdk:window object which received the event.

send-event

True if the event was sent explicitly.

time

The unsigned integer with the time of the event in milliseconds.

state

The gdk:modifier-type bit-mask representing the state of the modifier keys, for example, the Control, Shift and Alt keys, and the pointer buttons.

keyval

The key that was pressed or released. See the gdk/gdkkeysyms.h header file for a complete list of GDK key codes.

length

The integer with the length of the string field.

string

The string containing an approximation of the text that would result from this keypress. The only correct way to handle text input is using input methods, see the gtk:im-context API, so this field is deprecated and should never be used. The gdk:unicode-to-keyval function provides a non-deprecated way of getting an approximate translation for a key. The string field is encoded in the encoding of the current locale. Note this for backwards compatibility: strings in GTK and GDK are typically in UTF-8 and NUL-terminated. In some cases, the translation of the key code will be a single NUL byte, in which case looking at length is necessary to distinguish it from an empty translation.

hardware-keycode

The unsigned integer with the raw code of the key that was pressed or released.

group

The unsigned integer with the keyboard group.

is-modifier

The flag that indicates if the hardware-keycode field is mapped to a modifier.