Measurement Computing Personal Daq rev.6.0 - Manual (Page 160)

B-28 API Commands Appendix B, 887095 Personal Daq User’s Manual
daqWaitForEvent
DLL Function daqWaitForEvent(DaqHandleT handle, daqTransferEvent daqEvent);
C daqWaitForEvent(DaqHandleT handle, DaqTransferEvent daqEvent);
Visual BASIC VBdaqWaitForEvent&(ByVal handle&, ByVal daqEvent&)
Delphi daqWaitForEvent(handle:DaqHandleT; daqEvent:daqTransferEvent)
handle Handle of the device for which to wait of the specified event Parameters
daqEvent Specifies the event to wait on
Returns DerrNoError No error
See Also daqWaitForEvents, daqSetTimout
Program References None
Used With All devices
Description
daqWaitForEvent allows you to wait on a specific Personal Daq event to occur on the specified device. This function will not return until
the specified event has occurred or the wait has timed out— whichever comes first. The event time-out can be set with the
daqSetTimout
function. See the Transfer Event Definitions table for event definitions.
daqWaitForEvents
DLL Function daqWaitForEvents(DaqHandleT *handles, daqTransferEvent *daqEvents,
DWORD eventCount, BOOL *eventSet, daqWaitMode waitMode);
C daqWaitForEvents(DaqHandleT *handles, DaqTransferEvent *daqEvents,
DWORD eventCount, BOOL *eventSet, DaqWaitMode waitMode);
Visual BASIC VBdaqWaitForEvents&(handles&(), daqEvents&(), ByVal eventCount&, eventSet&(), ByVal
waitMode&)
Delphi daqWaitForEvents(handles:DaqHandlePT; daqEvents:daqTransferEventP;
eventCount:DWORD; eventSet:PBOOL; waitMode:daqWaitMode):
*handles Pointer to an array of handles which represent the list of device on which to wait for the events
*daqEvents Pointer to an array of events which represents the list of events to wait on
eventCount Number of defined events to wait on
*eventSet Pointer to an array of Booleans indicating if the events have been satisfied.
Parameters
waitMode Specifies the mode for the wait
Returns DerrNoError No error
See Also daqWaitForEvent, daqSetTimeout
Program References None
Used With All devices
Description
daqWaitForEvents allows you to wait on specific Personal Daq events to occur on the specified devices. This function will wait on the
specified events and will return based upon the criteria selected with the waitMode parameter. A time-out for all events can be specified
using the daqSetTimeout command.
Events to wait on are specified by passing an array of event definitions in the events parameter. The number of events is specified with
the eventCount parameter. See the Transfer Event Definitions table for events parameter definitions. Also see the Transfer Event Wait
Mode Definitions table for waitMode parameter definitions.