Int 60

PC-IPC API

STACK:
DWORD pointer to parameter block (see #03268)

Return:
STACK: unchanged

Program: PC-IPC is a shareware TSR by Donnelly Software Engineering which allows communication between independent programs

Range:
INT 00 to INT FF, selected by commandline switch

Format of PC-IPC parameter block: Offset Size Description (Table 03268) 00h WORD caller's ID 02h WORD to ID 04h WORD command code (see #03269) 06h WORD returned status (see #03270) 08h WORD returned error code (see #03271) 0Ah WORD size of data 0Ch DWORD pointer to data buffer

(Table 03269) Values for PC-IPC command code: 01h "IPC_CMND_INQUIRE" inquire current status. Set status field, writes WORD to data buffer containing free message space in bytes, and sets the "size" field to the number of messages waiting 02h "IPC_CMND_ENABLE" reenable PC-IPC. Ignored unless called with the same ID that disabled PC-IPC 03h "IPC_CMND_DISABLE" disable PC-IPC 04h "IPC_CMND_INSTALL" reset PC-IPC 06h "IPC_CMND_RDATA" read data. Returns first message in data buffer, sets "size" to message length and "to ID" field to sender's ID. If no messages available, bit 4 of status is cleared and "size" is set to zero 07h "IPC_CMND_SDATA" send data 08h "IPC_CMND_REQID" require user ID. Create a new recognized ID and return in "caller's ID" field 09h "IPC_CMND_DELID" cancel user ID. Delete caller's ID from pool of recognized IDs 0Ah "IPC_CMND_RDATAW" read data, wait if no messages available 0Bh "IPC_CMND_VERS" get PC-IPC version. String representing version returned in data buffer, "size" field set to length of string

Bitfields for returned status: Bit(s) Description (Table 03270) 0 unused 1 IPC enabled 2 IPC installed 3 error 4 message(s) available

(Table 03271) Values for PC-IPC error code: 00h no error 01h invalid command or parameter 02h only process 0 can install/reset IPC 03h process can not install/reset IPC 04h IPC is not enabled 05h process can not disable IPC 06h invalid destination process ID 07h invalid sending process ID 08h invalid data destination 09h no more process IDs available 0Ah can not relinquish that process ID 0Bh message space is full 0Ch IPC is not installed

Category: Runtime Support - Int 60h - P

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