Sets our main struct and passes it to the parent class.
Set key with value as metadata in klass.
Set key with value as metadata in klass.
Get the main Gtk struct
Get metadata with key in klass.
the main Gtk struct as a void*
Sets the detailed information for a gstreamer.DeviceProviderClass
Sets the detailed information for a gstreamer.DeviceProviderClass
the main Gtk struct
The structure of the base gstreamer.DeviceProviderClass