Using Delphi7 development of OPC client, enumerated the OPC server, use OPCenum. Pas done.
But then enumerated under the specified services group, and enumerated the Item under the group, first find fewer data, and half a bucket of water, the incomplete type C sample into Delphi was more difficult,
For elder people support,
Also look for advice, I use OPCAutomation_TLB create, connect the opc service, always fail, not even in the phone, but on the other client program can connect normal work, which should be able to account for the PC native environment setting should be no problem,