This is equivalent to the type of the device's console.
Value is `tty' for a tty device (a character-only terminal),
`x' for a device that is a screen on an X display,
+`gtk' for a device that is a GTK connection.
`ns' for a device that is a NeXTstep connection (not yet implemented),
`mswindows' for a device that is a MS Windows workstation,
`msprinter' for a device that is a MS Windows printer connection,
"Return the number of color cells of DEVICE, or nil if unknown."
(device-system-metric device 'num-color-cells))
+(defun make-gtk-device ()
+ "Create a new GTK device."
+ (make-device 'gtk nil))
+
(defun make-x-device (&optional display)
"Create a new device connected to DISPLAY."
(make-device 'x display))