Int 7F/AX=0104h/BX=0000h

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HLLAPI (IBM 3270 High-Level Language API)/LLAPI (Rabbit Low Level API)

AX = 0104h (HLLAPI gate ID)
BX = 0000h
DS:SI -> parameter control block (see #03872)

Return:
Parameter control block updated

InstallCheck:
For the Novell HLLAPI TSR, test for the signature "CXI" (for the company Novell bought) immediately prior to the interrupt handler

See Also: AX=0105h - AX=ABCDh

Format of HLLAPI parameter control block: Offset Size Description (Table 03872) 00h 3 BYTEs signature = 'PCB' 03h BYTE function number (see #03873,#03874) 04h WORD segment of control string 06h WORD offset of control string 08h WORD length of control string, unless explicit end-of-str char set 0Ah BYTE unused (IBM) ControlString[0] (Rabbit) 0Bh WORD return code (see #03876) 0Dh WORD maximum length of control string (IBM) unused (Rabbit)

(Table 03873) Values for HLLAPI function number: 00h OEM function (Query system for Attachmate implementation) 01h Connect presentation space 02h Disconnect presentation space 03h Send string of keystrokes as if typed from keyboard 04h Wait ~60s, returns status of presentation space 05h Copy current presentation space into a user-defined buffer 06h Search presentation space for first occurrence of a specified string 07h Query cursor location in current presentation space 08h Copy part or all of current presentation space into user buffer 09h Set session parameters; parameters vary by vendor (see #03875) 0Ah Get info on sessions currently connected 0Bh Lock current presentation space 0Ch Unlock previously locked presentation space 0Dh Return copy of operator info area (OIA) of current presentation space 0Eh get attribute byte for given position in the current presentation space 0Fh copy string of characters to the current presentation space 10h workstation control functions 11h storage manager functions, intended primarily for BASIC applications. (not implemented by Rabbit) 12h set delay period in half-second intervals 14h get info on level of workstation support used 15h reset session parameters to default values 16h get detailed info on the current session 17h start host notification to application on presentation sp or OIA update 18h check host update when host notification enabled 19h stop host notification 1Eh search field within current presentation space for string 1Fh get first positionof a selected field in the current presentation space 20h get length of specified field 21h copy string into a specified field 22h copy specified field into a user-defined buffer 23h create alternate presentation space (IBM only), don't use with BASIC 24h switch to alternate presentation space (IBM only), not with BASIC 25h display cursor in specified area (IBM only), don't use with BASIC 26h display alternate presentation space (IBM only), don't use with BASIC 27h delete alternate presentation space (IBM only), don't use with BASIC 28h set cursor 29h start Close Intercept 2Ah query Close Intercept 2Bh stop Close Intercept 32h start intercepting keystrokes to allow filtering 33h get keystrokes after turning on interception 34h notify operator when keystroke rejected by filter subroutine 35h stop intercepting keystrokes 5Ah send file 5Bh receive file 5Ch run a program (not implemented by Rabbit) 5Dh execute DOS command (not implemented by Rabbit) 63h change presentation space position to PC display row/col or vice versa 65h connect to Window Services 66h disconnect from Window Services 67h set/query window coordinates 68h set/query window status 69h change presentation space name 78h connect Structured Fields 79h disconnect Structured Fields 7Ah query size of communications buffer 7Bh allocate communications buffer 7Ch free communications buffer 7Dh get request completion state 7Eh read Structured Fields 7Fh write Structured Fields FFh Get info on DCA implementation

(Table 03874) Values for LLAPI function number: 80h initialize LLAPI (internal call) 83h set Session ID (one-character ID) 84h read Session ID (one-character ID) 85h lock 327x keyboard 86h unlock 327x keyboard 87h wait for Clear to Send 88h type ASCII character 89h type 327x key 8Ah read keyboard lock state 8Fh force screen update 90h view session 91h relinquish (suspend foreground until background becomes idle) 92h poke screen character 93h poke translated character 94h peek screen character 95h peek translated character 96h set cursor position 97h send scan code (Rabbit only) 98h synchronize (returns after keystroke queue empty) 99h type PC key (Rabbit only)

(Table 03875) Values for HLLAPI Function 09h Session Parameters: ASCII ??? (Rabbit only) ATTRIB return attributes in hex NOATTRIB return attributes as blanks CONPHYS make physical connection CONLOG only make logical connection EAB copy extended attribute bytes along with data NOEAB copy data only ESC=n set escape character to "n" (default '@') EOT=n set end of string character (default 00h) FPAUSE full-duration pause FTNOWAIT return immediately from functions 5Ah and 5Bh (Rabbit only) FTWAIT wait for file transfer to complete (Rabbit only) IPAUSE interruptable pause RABESC ??? (Rabbit only) NORABESC ??? (Rabbit only) SCANCODE ??? (Rabbit only) STRLEN use explicit string lengths STREOT use terminated strings SRCHALL search entire presentation space SRCHFROM search from specified offset SRCHFRWD search forward from position 1 SRCHBKWD search backward from last position in presentation space TIMEOUT=n ??? (Rabbit only) TWAIT wait specified time for keyboard ready LWAIT wait until keyboard ready NWAIT no wait TRON enable tracing TROFF disable tracing AUTORESET send reset before sending keys with function 03h NORESET don't send reset QUIET don't display messages sent with INT 21/AH=09h NOQUIET allow messages to be displayed TIMEOUT=n set timeout in 30-second intervals, 0 = wait until ^Break XLATE translate extended attribute bytes NOXLATE don't translate NEWRET use HLLAPI v3.0 return code conventions OLDRET use HLLAPI v2.0 return code conventions

(Table 03876) Values for Windows HLLAPI return code: 00h successful 01h Presentation Space not connected/requested size unavailable 02h invalid function or parameter error/invalid block ID 03h file transfer complete 04h file transfer complete (segmented)/Presentation Space busy 05h inhibited or keyboard locked 06h data truncated 07h invalid Presentation Space position 08h operation not available 09h system error 0Ah blocking error 0Bh resource not available 0Ch session stopped 14h undefined key combination 15h OIA updated 16h Presentation Space updated 17h both Presentation Space and OIA updated 18h no such field 19h no keystrokes available 1Ah Presentation Space or Operator Information Area changed 1Bh file transfer aborted 1Ch zero-length field 1Eh cursor type invalid 1Fh keystroke overflow 20h another application is already connected 22h message sent to host cancelled 23h transmission from host cancelled 24h lost contact with host 25h function successful 26h function incomplete 27h a DDM session is already connected 28h disconnected, but asynchronous requests still pending 29h buffer already in use 2Ah no matching request found 12Dh invalid function number 12Eh file not found 131h access denied 134h out of memory 136h environment invalid 137h format invalid 270Eh (9998) invalid Presentation Space ID 270Fh (9999) invalid row or column code ---Windows HLLAPI extensions--- F000h asynchronous call already in progress F001h invalid asynchronous task ID F002h blocking call cancelled F003h underlying subsystem not started F004h unsupported application version

Category: IBM Workstation/Terminal Emulators - Int 7Fh - H

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