This is an OPC client toolkit to develop OPC HDA.
WinTECH Software provides full source code support for developers wishing to implement OPC Server, OPC Client , HDA Server and/or HDA Client Designs. The first of their kind, these toolkits are published with an open API and may be freely downloaded and used to create OPC Custom Interface Designs from C, C++, Visual Basic or DELPHI. Each toolkit consists of a Windows DLL that implements all the required OPC Interfaces plus Browse. All the intricate details of COM, DCOM and OPC are contained within the dll while a very simple API is presented to the user for referencing his own customized tag data. Each toolkit is available as a demo, allowing you to download and develop your own custom OPC Solution without cost or obligation. While the demo dll is time-limited to 30 minutes of operation, (after establishing an OPC Connection), you have ample opportunity for testing your design with various OPC Clients and/or Servers to ensure compatibility prior to making a purchase decision.