Gets back user data pointers stored via gobject.param_spec.ParamSpec.setQdata
and removes the data from pspec without invoking its destroy()
function (if any was set). Usually, calling this function is only
required to update user data pointers with a destroy notifier.
Gets back user data pointers stored via gobject.param_spec.ParamSpec.setQdata and removes the data from pspec without invoking its destroy() function (if any was set). Usually, calling this function is only required to update user data pointers with a destroy notifier.