private static void TestUnion2()
{
SimpleUnion2_1 u1Integer = new SimpleUnion2_1();
u1Integer.i = 10;
TestUnion2(u1Integer, 1);
SimpleUnion2_2 u1String = new SimpleUnion2_2();
u1String.str = "*** This is a string. ***";
TestUnion2(u1String, 2);
}
private static extern void TestUnion2(SimpleUnion2_2 u, int type);