Measurement-computing Data Acquisition Systems rev.10.4 Manual de usuario descargar pdf (Pagina 237)

Programmer’s Manual 908794 Daq API Command Reference 4.5-7

daqGetDeviceInventory

Format

daqGetDeviceInventory(pInfoList, pInfoListCount, pMatchInfo, flags)

Purpose

daqGetDeviceInventory builds a device information list of devices that exist in the Windows Registry and/or devices that

can be dynamically detected

Parameter Summary

Parameter Type Description

pInfoList DaqDevInfoPT Pointer an array of device information structures

pInfoListCount PDWORD Pointer to the number of elements in the device information list

pMatchInfo DaqDevInfoPT Pointer to a device information structure containing device matching information

flags DWORD One or more device information flags

Parameter Values

pInfoList: a pointer to an array of DaqDevInfoT structures (see the DaqDevInfoT table of the daqCreateDevice

function)

pInfoListCount: upon entry, the value that pInfoListCount points to should be set to the number of elements in the

information list array; upon exit, the value that pInfoListCount points to will be set to the number of elements in the

information list that were modified

pMatchInfo: if any of the match info flags are set in the flags parameter, pMatchInfo should point to a device

information structure containing the appropriate match information, otherwise pMatchInfo can be NULL

flags: see the DaqDevInfoFlagsT table below

Parameter Type Definitions

flags – (DaqDevInfoFlagsT)

Definition Description

DaqInfoFlagsCreated Enables searching the Windows registry for created devices and returns those that

are found

DaqInfoFlagsNotCreated Enables searching the Windows registry for created devices but removes those that

are found

DaqInfoFlagsDetected Enables searching for detectable devices and returns those that are detected

DaqInfoFlagsNotDetected Enables searching for detectable devices but removed those that are detected

DaqInfoFlagsTestPassed Enables testing of detected and/or created devices and returns those that pass the

communications test

DaqInfoFlagsTestFailed Enables testing of detected and/or created devices and returns those that pass the

communications test

DaqInfoFlagsNew Returns devices that are detected, but not yet created (DaqInfoFlagsDetected +

DaqInfoFlagsNotCreated)

DaqInfoFlagsRemoved Returns devices that are created, but failed the communications test

(DaqInfoFlagsCreated + DaqInfoFlagsTestFailed)

DaqInfoFlagsAvailable Returns devices that are created, and passed the communications test

(DaqInfoFlagsCreated + DaqInfoFlagsTestPassed)

DaqInfoFlagsMatchAlias Causes any devices whose alias does not match the specified alias to be removed

from the list

DaqInfoFlagsMatchParentAlias Causes any devices whose parent alias does not match the specified alias to be

removed from the list

DaqInfoFlagsMatchType Causes any devices whose device type does not match the specified device type to be

removed from the list

DaqInfoFlagsMatchSubType Causes any devices whose device type and device sub type do not match the

specified device type and device sub type to be removed from the list

DaqInfoFlagsMatchProdGroup Causes any devices whose device product group does not match the product group of

the specified device type to be removed from the list

DaqInfoFlagsMatchProdFamily Causes any devices whose device product family does not match the product family

of the specified device type to be removed from the list

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