Interface

GUdev-1.0GUdevClientSignalSignatures

interface SignalSignatures {
    notify: (arg0: GObject.ParamSpec) => void;
    "notify::subsystems": (pspec: GObject.ParamSpec) => void;
    uevent: (arg0: string, arg1: GUdev.Device) => void;
}

Hierarchy (View Summary)

Index

Properties

Properties - Inherited from GObject

Properties

"notify::subsystems": (pspec: GObject.ParamSpec) => void
uevent: (arg0: string, arg1: GUdev.Device) => void

Emitted when client receives an uevent.

Note that while you'll have access to all the device's properties and attributes for the majority of actions, only the sysfs path will be available when the device is removed.

Also note that the action is an arbitrary string, controlled by device drivers. Other values than those listed is possible, but unlikely.

This signal is emitted in the

thread-default main loop of the thread that `client` was created in.

Properties - Inherited from GObject

notify: (arg0: GObject.ParamSpec) => void

The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.

Note that getting this signal doesn’t itself guarantee that the value of the property has actually changed. When it is emitted is determined by the derived GObject class. If the implementor did not create the property with GObject.ParamFlags.EXPLICIT_NOTIFY, then any call to g_object_set_property() results in ::notify being emitted, even if the new value is the same as the old. If they did pass GObject.ParamFlags.EXPLICIT_NOTIFY, then this signal is emitted only when they explicitly call g_object_notify() or g_object_notify_by_pspec(), and common practice is to do that only when the value has actually changed.

This signal is typically used to obtain change notification for a single property, by specifying the property name as a detail in the g_signal_connect() call, like this:

g_signal_connect (text_view->buffer, "notify::paste-target-list",
G_CALLBACK (gtk_text_view_target_list_notify),
text_view)

It is important to note that you must use [canonical parameter names][class@GObject.ParamSpec#parameter-names] as detail strings for the notify signal.