Unable to find entry point named 'AALFunc364'

[marcblock]

When I call NationalInstruments.Analysis.SpectralMeasurements.Measurements.PulseMeasurements I am getting the error unable to find entry point.

I am using

Microsoft Visual C# 2010   01019-315-4422995-70201

NI Measurement Studio 2010  

Measurement Studio for Visual Studio 2010

I get a similiar error Unable to find entry point named 'AALFunc365' when I call

NationalInstruments.Analysis.SpectralMeasurements.Measurements.CycleRmsAverage

Calls that are working are

NationalInstruments.Analysis.SpectralMeasurements.Measurements.ACDCEstimator

NationalInstruments.Analysis.Dsp.SignalProcessing.PulseParameters

[Perry_S]

Hi marcblock,

I looked into this error and the information that I found talks about case sensitivity when calling into a dll. Are you calling into a dll of some kind. Could you cut and paste the portion of code that is causing this? Also the document that you uploaded was corrupt so could you up load it again?

Regards,

Perry S.

[blockmarc]

Thanks a million for your reply

This is the code that I would love to get working

double amplitude10Percent = 0, amplitude50Percent = 0, amplitude90Percent = 0, topValue = 0, baseValue = 0, overshoot = 0, undershoot = 0,  slewRate = 0;

            int delay = 0, width = 0,riseTime = 0, fallTime = 0;

NationalInstruments.Analysis.SpectralMeasurements.Measurements.PulseMeasurements(valueArray, 90, 50, 10, NationalInstruments.Analysis.SpectralMeasurements.ReferenceLevelUnit.Percentage, NationalInstruments.Analysis.SpectralMeasurements.MeasurementPolarity.High,

                1, out period, out pulseDuration, out dutyCycle, out pulseCenter, out hiLevel, out midLevel, out lowLevel);

[Perry_S]

Hi blockmarc,

I ran the code that you sent with out making any changes and it worked just fine. Do you have the correct version of the analysis library referenced? Could you zip up your project and upload it so that I could take a look at it?

Regards,

Perry S.

[marcblock]

Thanks a million for looking in to this

--Marc

[Beau_H]

Hey Marc,

I ran the project you posted and it compiles and runs for me. I do get an unhandled exception error -20308 when I use "button1" on the user interface as its running but that is associated not actually taking any actual measurements for the program to read. Does that sound like the behavior you are experiencing, what I mean is when you run your code does your project compile and allow you to debug or does it not even compile? Also what DAQ hardware are you wanting to use this program with?  

One thing when I opened your project I had to update the driver editions because my system has DAQmx 9.4, not to say that is why it worked for me only identifying differences in our software. 

[blockmarc]

I have installed the DAQmx 9.4 drivers.  I am still getting the same error

In response to your questions:

I am able to build the code without any problems.

If I try to run it without the daq device attached I get an error that I do not have the daq device attached.

If I attach the daq device an power up only the daq device I get no errors when I start running the program.  When I click on button 1 I get the error.  I have attached the complete text of the down load or

System.EntryPointNotFoundException was unhandled
  Message=Unable to find an entry point named 'AALFunc364' in DLL 'nianlys.dll'.
  Source=NationalInstruments.Analysis.Enterprise
  TypeName=""
  StackTrace:
       at NationalInstruments.Analysis.Internal.l.a(Double[] A_0, IntPtr A_1, Int32 A_2, IntPtr A_3, Double A_4, Double A_5, Double A_6, Int32 A_7, Int32 A_8, IntPtr A_9, Double& A_10, Double& A_11, Double& A_12, Double& A_13, Double& A_14, Double& A_15, Double& A_16)
       at NationalInstruments.Analysis.SpectralMeasurements.Measurements.PulseMeasurements(Double[] signal, Double highReferenceLevel, Double midReferenceLevel, Double lowReferenceLevel, ReferenceLevelUnit units, MeasurementPolarity pulsePolarity, Int32 pulseNumber, MeasurementMethod percentageMethod, Int32 histogramSize, Double& period, Double& pulseDuration, Double& dutyCycle, Double& pulseCenter, Double& highReferenceLevelAbsolute, Double& midReferenceLevelAbsolute, Double& lowReferenceLevelAbsolute)
       at NationalInstruments.Analysis.SpectralMeasurements.Measurements.PulseMeasurements(Double[] signal, Double highReferenceLevel, Double midReferenceLevel, Double lowReferenceLevel, ReferenceLevelUnit units, MeasurementPolarity pulsePolarity, Int32 pulseNumber, Double& period, Double& pulseDuration, Double& dutyCycle, Double& pulseCenter, Double& highReferenceLevelAbsolute, Double& midReferenceLevelAbsolute, Double& lowReferenceLevelAbsolute)
       at MeasurementsTest.Form1.button1_Click(Object sender, EventArgs e) in C:\Work\MeasurementsTest\MeasurementsTest\Form1.cs:line 33
       at System.Windows.Forms.Control.OnClick(EventArgs e)
       at System.Windows.Forms.Button.OnClick(EventArgs e)
       at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
       at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
       at System.Windows.Forms.Control.WndProc(Message& m)
       at System.Windows.Forms.ButtonBase.WndProc(Message& m)
       at System.Windows.Forms.Button.WndProc(Message& m)
       at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
       at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
       at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
       at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
       at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.Run(Form mainForm)
       at MeasurementsTest.Program.Main() in c:\Work\MeasurementsTest\MeasurementsTest\Program.cs:line 18
       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException:

[blockmarc]

I looked at

C:\windows\system32 for nianlys.dll and found it

Then I looked at the version number which is 8.1.1.359.

Is this the correct version for the dll?  Also is it possible that when I was installing measurement studio that I might not have had the proper authorization?  Perhaps some this dll did not get entered properly in the registry?

Thanks for your help

--Marc

[blockmarc]

I also notice that in C:\WINDOWS\assembly

I am missing NationalInstruments.AnalysisEnterprize, 

a coworker has this assembly.  When I look at my assembles the first ni assemble that I have is Common. 

How do I get these missing assemblies installed?

[blockmarc]

I did find the Assembly it was at

C:\Program Files\National Instruments\MeasurementStudioVS2010\DotNET\Assemblies\Current

runtime version is 4.0.30319

version                 9.0.40.292