Rockwell Automation 1747-PCIS API Software - Open Controller - Manual (Page 120)

Publication 1747-UM002A-US-P - June 2000
6-60 Library of Routines
OC_SetModuleInterrupt OC_SetModuleInterrupt enables, disables, or acknowledges the
module interrupt for the slot
slotnum on the scanner.
Syntax:
int OC_SetModuleInterrupt(HANDLE handle, int
slotnum, int mode);
Parameters:
Description:
When a module interrupt is received, the scanner generates a module
interrupt message that the host application can read by calling the
OC_PollScanner function. After retrieving the module interrupt
message, the host application should immediately acknowledge the
module interrupt and then service the module interrupt message. The
module interrupt must be acknowledged before another can be
received from that module.
Return Value:
Considerations:
Supported in the DOS API library and the Windows NT API library
Parameter: Description:
handle Must be a valid handle returned from OC_OpenScanner
slotnum Must be a valid slot number
mode If mode is:
IOINT_DISABLE the module interrupt is disabled (default)
IOINT_ENABLE the module interrupt is enabled
IOINT_ACK the module interrupt is acknowledged.
Name: Value: Description:
SUCCESS 0 module interrupt was processed successfully
ERR_OCACCESS 2
handle
does not have access to scanner
ERR_OCPARAM 8 parameter contains invalid value
ERR_OCRESPONSE 10 scanner did not respond to request
ERR_OCSCANCFG 14 scanner has not been configured
ERR_OCSLOT 12 slot number is invalid