alias Gio::SettingsGetMapping


The type of the function that is used to convert from a value stored in a #GSettings to a value that is useful to the application.

If the value is successfully mapped, the result should be stored at @result and true returned. If mapping fails (for example, if @value is not in the right format) then false should be returned.

If @value is nil then it means that the mapping function is being given a "last chance" to successfully return a valid value. true must be returned in this case.

Alias Definition

GLib::Variant, Pointer(Void)? -> Bool

Defined in: