Measurement-computing DAQFlex User Guide Manuale Utente Scaricare il pdf (Pagina 9)

Chapter 2

Using DAQFlex Software

The following procedure describes how to program a DAQFlex-supported device with DAQFlex software.

1. Add a reference to the DAQFlex assembly to your project.

o In Visual Studio and MonoDevelop, this assembly is listed under the .NET tab of the Add

Reference dialog as DAQFlex API.

If your project is a C# project, add the following statement to your source file:

using MeasurementComputing.DAQFlex;

2. Get a list of device names using the static method GetDeviceNames():

string[] deviceNames;

deviceNames = DaqDeviceManager.GetDeviceNames(DeviceNameFormat.NameAndSerno);

Dim deviceNames As String()

deviceNames = DaqDeviceManager.GetDeviceNames(DeviceNameFormat.NameAndSerno)

GetDeviceNames gets the names of DAQFlex devices detected by the DAQFlex API. DeviceNameFormat

is an enumeration that specifies the format of the returned values. This enumeration defines four

different formats:

Member Name

Description

NameOnly

The returned values contain only the device name.

NameAndSerno

The return values contain the device name with the device serial number

formatted as "DeviceName::SerialNumber".

NameAndID

The return values contains the device name with the device's user-defined ID

formatted as "DeviceName::DeviceID".

NameSernoAndID

The return values contains the device name, the device serial number and the

device's user-defined ID formatted as "DeviceName::SerialNumber::DeviceID".

Note: Each DAQFlex API method will throw an exception if an error occurs, and should be enclosed

within a Try/Catch block.

3. Get a device object using the static method CreateDevice():

int deviceNumber = 0;

DaqDevice device;

string deviceName = deviceNames[deviceNumber];

device = DaqDeviceManager.CreateDevice(deviceName);

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Measurement-computing DAQFlex User Guide Manuale Utente Pagina 9