Int 21/AX=2B44h/BX=4D41h

PcANYWHERE IV/LAN - INSTALLATION CHECK

AX = 2B44h ('D')
BX = 4D41h ('MA')
CX = 7063h ('pc')
DX = 4157h ('AW')

Return:
AX = resident program
4F4Bh ('OK') if large host resident
6F6Bh ('ok') if small host resident
CX:DX -> API entry point (see #01389)

See Also: INT 16/AH=79h



(Table 01389)
Call pcANYWHERE API entry point with:.
AX = 0000h get pcANYWHERE IV version
DS:SI -> BYTE buffer for host type code
Return:
AH = version number
AL = revision number
DS:DI buffer byte filled with
00h full-featured host
01h limited-feature LAN host
other API may not be supported.
AX = 0001h initialize operation
DS:SI -> initialization request structure (see #01390)
Return:
AX = function status (see #01393).
AX = 0002h get status
Return:
AH = current operating mode (see #01390)
AL = current connection status (see #01392).
AX = 0003h suspend remote screen updates
Return:
AX = function status (see #01393).
AX = 0004h resume screen updates
Return:
AX = function status (see #01393).
AX = 0005h end current remote access session
DS:SI -> termination request structure (see #01391)
Return:
AX = function status (see #01393).
AX = 0006h remove pcANYWHERE IV from memory
Return:
AX = status (see #01393).
AX = 8000h read data from communications channel
DS:BX -> buffer
CX = buffer size
Return:
AX >= number of characters read/available
AX < 0 on error.
AX = 8001h write data to communications channel
DS:BX -> buffer
CX = buffer size
Return:
AX >= number of characters written
AX < 0 on error.
AX = 8002h get connection status
Return:
AX = status
> 0000h if connection active
= 0000h if connection lost
< 0000h on error

Format of pcANYWHERE initialization request structure:

Offset  Size    Description     (Table 01390)
00h    BYTE    operating mode
00h wait for a call
01h hot key activates
02h incoming call activates
03h initiate a call
01h  3 BYTEs   user ID to append to config file names
04h    WORD    DS-relative pointer to path for config files
06h    WORD    DS-relative pointer to path for program files

Format of pcANYWHERE termination request structure:

Offset  Size    Description     (Table 01391)
00h    BYTE    operating mode after termination
00h wait for a call
01h hot key activates
02h incoming call activates
80h use current mode
FFh remove from memory

Bitfields for current connection status:

Bit(s)  Description     (Table 01392)
0      a physical connection is active
1      remove screen updating is active
2      connection checking is active
3      hot key detection is active
4      background file transfer is active


(Table 01393)
Values for pcANYWHERE function status:
0000h  function completed successfully
FFD1h  unable to release interrupt vectors
FFD2h  unable to release allocated memory
FFF2h  unable to establish a connection when operating mode is
"Initiate a call"
FFF3h  modem configuration is invalid (corrupt config)
FFF4h  modem initialization failed (no modem response)
FFF5h  the communications device could not be initialized
FFF6h  the host operator aborted the function
FFF7h  the communications driver type specified in the configuration file is
different than the one loaded when pcANYWHERE IV was started
FFF9h  the configuration file is invalid
FFFAh  the configuration file could not be found
FFFBh  no session is active
FFFCh  a remote access session is active
FFFDh  the specified operating mode is invalid

Category: Remote Control/File Access - Int 21h - P

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