struct _PORT_MESSAGE { union { struct { short DataLength;/* 0x0 2 */ short TotalLength;/* 0x2 2 */ } s1;/* 0x0 4 */ unsigned long Length;/* 0x0 4 */ } u1;/* 0x0 4 */ union { struct { short Type;/* 0x4 2 */ short DataInfoOffset;/* 0x6 2 */ } s2;/* 0x4 4 */ unsigned long ZeroInit;/* 0x4 4 */ } u2;/* 0x4 4 */ union { struct _CLIENT_ID ClientId;/* 0x8 16 */ double DoNotUseThisField;/* 0x8 8 */ };/* 0x8 16 */ unsigned long MessageId;/* 0x18 4 */ /* 4 bytes padding */ union { unsigned __int64 ClientViewSize;/* 0x20 8 */ unsigned long CallbackId;/* 0x20 4 */ };/* 0x20 8 */};size 40 (0x28)7 members1 hole (4 bytes)padding 01 cacheline
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