z/Scope Terminal Emulator
Scripting Capabilities
Open Host Interface Objects (OHIO)
OHIO addresses the need for a standardized advanced programming interface that can access the host data. OHIO does not modify the TN3270/TN5250 protocol or datastream but instead provides a common access method to that data once it arrives at the client. It uses an Object Oriented approach to divide the data into logical objects, and provides methods on those objects to allow standard access to the data.
HLLAPI, WinHLLAPI, EHLLAPI
HLLAPI is a standard programming interface that allows
programmatic access to a host emulator session. Functions are
provided for reading host screen data (such as the characters
and attributes), for sending keystrokes, and for performing
other emulator-related functions.
The EHLLAPI interface is a single call-point interface. There is
a single callable API through which all EHLLAPI functions are
requested. On each call to the interface the application
provides a function number which identifies the function
requested, a pointer to a data buffer, a pointer to the length
of the data buffer, and a pointer to a return code.
WinHLLAPI is based on the familiar EHLLAPI.API. It encompasses
all of its existing functionality and adds extensions that take
advantage of the Windows message-driven environment.
