组态中有4个CLASS,其中CLASS 1有3个TYPE,我只想要TYPE 1和TYPE 2的消息,但出现
1、只选TYPE 1时,TYPE 2和TYPE 3就自动也选上了
2、只选TYPE 2时,TYPE 3就自动选上,TYPE 1没选上
3、只选TYPE 3时,TYPE 3和TYPE 1这回都没选上
好象之间有联系，希望高手能帮助解答这个问题。程序如下

MSG_FILTER_STRUCT AlarmLogFilter;

memset(&AlarmLogFilter, 0, sizeof(MSG_FILTER_STRUCT));

AlarmLogFilter.dwFilter = MSG_FILTER_CLASS ;
AlarmLogFilter.dwMsgClass = 0x0001 ;
AlarmLogFilter.dwMsgType[0] = 0x00000001;