Class device - cl-cffi-gtk4 API documentation

Package: gdk

Class gdk:device

Superclasses

gobject:object, common-lisp:standard-object, common-lisp:t

Documented Subclasses

gdk:device-pad

Direct Slots

active-layout-index

The active-layout-index property of type :int (Read)
The index of the keyboard active layout of a device. Will be -1 if there is no valid active layout. This is only relevant for keyboard devices. Since 4.18
Default value: 0

caps-lock-state

The caps-lock-state property of type :boolean (Read)
Whether the keyboard caps lock is on.
Default value: false

direction

The direction property of type pango:direction (Read)
The direction of the current layout of the keyboard.
Default value: :neutral

display

The display property of type gdk:display (Read / Write / Construct Only)
The display the device pertains to.

has-bidi-layouts

The has-bidi-layouts property of type :boolean (Read)
Whether the keyboard has bidi layouts.
Default value: false

has-cursor

The cursor property of type :boolean (Read / Write / Contstruct Only)
Whether the device is represented by a cursor on the screen.
Default value: false

layout-names

The layout-names property of type g:strv-t (Read)
The names of the keyboard layouts of a device. This is only relevant for keyboard devices. Since 4.18

modifier-state

The modifier-state property of type gdk:modifier-type (Read)
The modifier state of the keyboard.

n-axes

The n-axes property of type :uint (Read)
The number of axes in the device.
Default value: 0

name

The name property of type :string (Read / Write / Construct Only)
The device name.
Default value: nil

num-lock-state

The num-lock-state property of type :boolean (Read)
Whether the keyboard num lock is on.
Default value: false

num-touches

The num-touches property of type :uint (Read / Write / Construct Only)
The maximal number of concurrent touches on a touch device. Will be 0 if the device is not a touch device or if the number of touches is unknown.
Default value: 0

product-id

The product-id property of type :string (Read / Write / Construct Only)
The product ID of the device.
Default value: nil

scroll-lock-state

The scroll-lock-state property of type :boolean (Read)
Whether the keyboard scroll lock is on.
Default value: false

seat

The seat property of type gdk:seat (Read / Write)
The seat of the device.

source

The source property of type gdk:input-source (Read / Write / Construct Only)
The source type of the device.
Default value: :mouse

tool

The tool property of type gdk:device-tool (Read)
The tool that is currently used with the device.

vendor-id

The vendor-id property of type :string (Read / Write / Construct Only)
The vendor ID of this device.
Default value: nil

Details

The gdk:device object represents a single input device, such as a keyboard, a mouse, a touchpad, etc. See the gdk:seat documentation for more information about the various kinds of devices, and their relationships.

Signal Details

The "changed" signal

lambda (device)    :run-last

device: The gdk:device object that changed.

The signal is emitted either when the gdk:device object has changed the number of either axes or keys. For example In X this will normally happen when the physical device routing events through the logical device changes, for example, user switches from the USB mouse to a tablet, in that case the logical device will change to reflect the axes and keys on the new physical device.