Measurement Computing WaveBook rev.3.0 - Manual (Page 197)

WaveBook User’s Manual, 6-24-99 daqX API - Command Reference D-1
daqX API - Command Reference Appendix D
Commands in Alphabetical Order…… D-3
API Reference Tables…… D-31
This chapter describes the WaveBook driver commands for the daqX API (Windows 95/98 and
Windows NT in 32-bit Enhanced mode). The first table lists the commands by their function types as
defined in the driver header files. Then, the prototype commands are described in alphabetical order as
indexed below. Lastly, several reference tables define parameters for: Event-handling definitions, hardware
definitions, ADC trigger-source and miscellaneous definitions, WBK card definitions, the API error codes,
etc.
Note: The daqx API provides a common Application Programming Interface for 32-bit data acquisition
applications. The WaveBook Enhanced API is a subset of daqX Enhanced API.
Function Description Page
Device Initialization Prototypes
daqOpen
Open a session with WaveBook D-27
daqClose End communication with the Daq* (including WaveBook) D-20
daqOnline Check online status of the Daq* (including WaveBook) D-26
daqGetDeviceCount Return the number of currently configured devices D-22
daqGetDeviceList Return the list of currently configured devices D-22
daqGetDeviceProperties Return the properties of specified device D-23
Error Handler Function Prototypes
daqSetDefaultErrorHandler
Set the default error handler D-27
daqSetErrorHandler Specify a user defined routine to call when an error occurs D-28
daqProcessError Process a driver defined error condition D-27
daqGetLastError Return the last logged error condition D-24
daqDefaultErrorHandler Call the default error handler D-21
daqFormatError Return text string for specified error D-22
Event Handling Function Prototypes
daqSetTimeout
Set the time-out value for the Daq* operation (including WaveBook) D-28
daqWaitForEvent Wait for specified Daq* device event (including WaveBook) D-30
daqWaitForEvents Wait for multiple specified Daq* device events (including WaveBook) D-30
Utility Function Prototypes
daqGetInfo
Returns hardware and configuration information. D-23
daqGetDriverVersion Return the software version D-23
daqGetHardwareInfo Return the hardware version D-23
Expansion Configuration Prototypes
daqSetOption
Set options for a device’s channel/signal path configuration D-28
Custom ADC Acquisition Prototypes - Scan Sequence
daqAdcSetMux
Configure a scan specifying start and end channels D-11
daqAdcSetScan Configure up to 256 channels in an A/D or HS digital input scan D-12
daqAdcGetScan Read the current scan configuration D-5
Custom ADC Acquisition Prototypes - Trigger
daqAdcCalcTrig
Calculate the trigger level and trigger source for an analog trigger D-4
daqAdcSetTrig Configure an A/D trigger D-13
daqAdcSetTrigEnhanced Configure an A/D trigger with multiple trigger-event conditions D-14
daqAdcSoftTrig Send a software trigger command D-15
Custom ADC Acquisition Prototypes - Scan Rate and Source
DacAdcSetClockSource
Sets clock source to drive the ADC acquisition frequency. D-9
dacAdcSetRate Configure the ADC scan rate with the mode parameter D-12
daqAdcSetFreq Configure the pacer clock frequency in Hz D-11
daqAdcGetFreq Read the current pacer clock frequency D-5