Device.addOnChanged

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

class Device
void
addOnChanged
(
void delegate dlg
,)

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