HP 3000 Manuals HP 3000 Manuals
Programmatic Access and Pass Thru SNA IMF supports two modes of communication between the HP 3000 and the host: programmatic access mode and Pass Thru mode. SNA IMF's programmatic access mode consists of a set of subroutines called intrinsics. Programs on the HP 3000 call these intrinsics to establish communication and exchange data with application subsystems on the IBM host. SNA IMF intrinsics can be called from programs written in BASIC, COBOL, COBOL II, FORTRAN, Pascal, and SPL. In addition to these languages, SNA IMF/XL also supports C. An HP 3000 program using SNA IMF intrinsics appears to the IBM host as an IBM 3278 display station or an IBM 3287 printer. Pass Thru modeis SNA IMF's interactive access mode. Through a program called Pass Thru, HP terminals and printers attached to your HP 3000 can look, to the IBM host, like IBM 3278 display stations or IBM 3287 printers attached to an IBM 3276 or 3274 Cluster Controller. The Pass Thru program calls the SNA IMF intrinsics that are used for programmatic access mode. You can use Pass Thru for direct access to IBM host application subsystems, without programming the HP 3000. Pass Thru helps you develop and debug application programs that call SNA IMF intrinsics.