Accessing Application Program Interface Work Areas From the Alternate Partition of the IBM PC 3270 Emulation Program
Original Publication Date: 1987-Feb-01
Included in the Prior Art Database: 2005-Jan-31
A method is described to allow the Accessing Application Program (API) Interrupt Handler routine running in the alternate partition to access API data in the 3270 Emulation partition. The IBM PC 3270 Emulation Program is a software package which allows the personal computer to emulate a 3274 control unit with an attached 3278 display and a 3287 printer in varying configurations, facilitating stand-alone and network operation. Its "3270 display device" emulator provides an API to allow application programs running in its alternate partition to interface with the terminal emulation software running in its primary partition. The IBM PC 3270 Emulation API code is unique in that part of the API code must run under the application task in the alternate partition.