Function gobject_sys::g_type_register_static_simple

pub unsafe extern "C" fn g_type_register_static_simple(
    parent_type: GType,
    type_name: *const c_char,
    class_size: c_uint,
    class_init: GClassInitFunc,
    instance_size: c_uint,
    instance_init: GInstanceInitFunc,
    flags: GTypeFlags
) -> GType