HLLAPI (High Level Language Application Programming Interface) is an industry standard method for a Windows PC application to interface with a host using a TN3270, TN5250, VT, SCO ANSI or Wyse-60 Windows terminal emulation program. Typical HLLAPI applications can present users with a friendlier interface to host applications and can be used to automate routine functions such as file transfer.
Compatibility
PASSPORT supports the 32-bit Windows HLLAPI Specification Version 1.1 and is compatible with the HLLAPI support found in the IBM Personal Communications/3270® and Attachmate EXTRA!® terminal emulation software.
PASSPORT does not support DOS EHLLAPI applications running in a DOS window or Windows 16-bit HLLAPI applications. If you have a DOS EHLLAPI or Windows 16-bit HLLAPI application you will need to contact the supplier of the EHLLAPI program and obtain their newer 32-bit Windows version of the product.
Configuration
HLLAPI is automatically available in every session of PASSPORT. By default, each PASSPORT session that is opened is assigned an alphabetic character, ranging sequentially from A through Z. This character is called the HLLAPI short name.
Windows HLLAPI defines a standard IBM HLLAPI style API for the 16-bit and 32-bit versions of Windows. This encompasses both familiar IBM HLLAPI style routines and a set of Windows-specific extensions. Windows 32-bit HLLAPI support is provided by the file Passhll.dll.