In continuation with my previous blogs about Automation using PCSAPI and Automation using EHLLAPI API’s, this blog provides a brief about the strongest set of PCOMM API’s, the HACL (Host Access Class Library) API.
Host Access Class Library (HACL) is a set of objects that allows application programmers to access host applications easily and quickly. IBM Personal Communications supports different HACL Layers:
An ActiveX control is a reusable software component based on Component Object Model (COM) that supports a wide variety of OLE functionality. These controls can be used in any ActiveX container application. An ActiveX control container can be written in Visual C++, MS Excel, MS Word etc. and is a container that fully supports ActiveX controls. A container application can incorporate ActiveX controls into its own windows or dialogs.