DMMergeMode
void SetMerge(DMMergeMode mode, uint32 mask);
DMMergeMode fMergeMode;
DelayedMessage::SetMerge(DMMergeMode mode, uint32 match)
DelayedMessageData::SetMerge(DMMergeMode mode, uint32 mask)
void SetMerge(DMMergeMode mode, uint32 match = 0);