Gets the #GdkDisplay associated to @device_manager.
Return: the #GdkDisplay to which @device_manager is associated to, or #NULL. This memory is owned by GDK and must not be freed or unreferenced.
3.0
See Implementation
Gets the #GdkDisplay associated to @device_manager.
Return: the #GdkDisplay to which @device_manager is associated to, or #NULL. This memory is owned by GDK and must not be freed or unreferenced.