EHLLAPI
Emulator High-level Language Application Program Interface (EHLLAPI) is an enhanced version of HLLAPI.[1] It was introduced in 1986 by the IBM company and it provided functions that can access the user interface data for text-based applications.[2]
EHLLAPI can be used to determine screen characters, track and send keystrokes, check the host status and perform file transfers. Typically this API was employed for communication with existing mainframe applications without the need to modify the application code.[2] EHLLAPI could map a screen between different IBM 3270 legacy applications, allowing information to be transferred between the two.[3] It was often used for automated control of applications via keystroke input and screen scraping.[4]
This IBM standard is supported by most terminal emulators.[5]
See also
References
- ^ Sometimes termed "Extended" or "Enhanced" HLLAPI.
- ^ a b Orfali, Robert; Harkey, Dan (1993). Client/server programming with OS/2 2.1. VNR's OS/2 series (3 ed.). Van Nostrand Reinhold. p. 135. ISBN 0442018339.
{{cite book}}: CS1 maint: multiple names: authors list (link) - ^ Mindrum, Craig; Andersen Consulting (1998). Netcentric and client/server computing: a practical guide. CRC Press. p. 19-3. ISBN 084939967X.
{{cite book}}: CS1 maint: multiple names: authors list (link) - ^ "Introduction to Emulator APIs". Personal Communications. IBM. Retrieved 2011-04-29.
- ^ Vandersluis, Kirstan (2004). XML-Based Integration with XAware: Unifying Applications and Data in Today's e-Business World. Maximum Press. p. 59. ISBN 1931644020.
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