1) how to assign name to Universal Library function TIN and VIN? or 2) how to provide headings in measurement file?

I am using a USB-TEMP-AI board from MCC with Labview 8.6
This necessitates using VInDLL.vi and TIn.vi to read my signals.
When I log using "write to measurement file", I would like headings
above the data such as:
           Tcold.in, Tcold.out, Thot.in, Thot.out, Flow.cold, Flow.hot
instead I get:
            Untitled, Untitled 1, Untitled 2, etc.
For some cases I need scaling, after which I get headings such as:
            Scaled (Scaled), Scaled (Scaled) 1, Scaled (Scaled) 2, etc.
How can I fix this?
Thanks,
Jon Snyder

One way is to use an NI data acquisition board and then you would probably be using the DAQ Assistant which would create the column names for you. A second way would be to just not use the Write to Measurement File and use one or more of the lower level file write functions (i.e. Write to Spreadsheet File) and write the column headers separately. The last way, would be to make sure the data from the mcc function is a waveform data type and set an NI_ChannelName attribure to what you want before passing the data to the Write to Measurement File.
This question has been asked numerous times and code for setting the attribute has been posted numerous times.

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How to Provide search Help for files on Application Server

Hi Guys,
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Thanks & Regards.
Harish.

Hi Harish,
Use the following code,
tables sxpgcotabe.
data: lt_execprot LIKE btcxpm OCCURS 0 WITH HEADER LINE,
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            jobcount_generation_error     = 14
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Regards,
Paul.

Converting Units in LabView and specifying sampling rate with Universal Library functions

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I have no idea how to change sample rate for your board. Have you asked the vendor?

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Message Edited by weichengatech on 03-09-2006 12:00 AM

Hello,
There’s no real efficient way to read the file if you don’t
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LabVIEW R&D
National Instruments

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How to provide security to a file.

Hi Experts,
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Using an external DLL with "Call Library Function"

Hi!
I am trying to use an external DLL which is used from Visualbasic & Delphi:
http://www.keb.de/common/tools/KEBCOMDriver.zip
the protKEB.dll accesses the serial port to control an KEB frequency
inverter.
Unfortunatly there is no prototype header file for the DLL (no help on that
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I only have a VisualBasic example program which works with the DLL.
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Public Type tProtProperty
ProtType As Long 'Type of Protocol (tProt)
TimeOut As Long 'ALL protocols
Baudrate As Long 'ANSI, HSP5
Comport As Long 'ANSI, HSP5
Flag As Long 'ANSI, HSP5: 01 = Sendslow
/ IP: 01 = UDP
Port As Long 'IPort number
Txtlen As Byte 'IP : length of following
text or 0
txt As String * 100 'IP : IP-Address or name
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thanks
tom
,-Thomas Kerberger Physikalisch-Technische Bundesanstalt-.
| Abbestr.2-12 D-10587 Berlin fon: +49-30-3481338 |
| mailto:[email protected] fax: +49-30-3481386 |
`--------Labor 7.33 Messung thermischer Energie---------'

Thomas,
LabVIEW cannot call a DLL that has structures directly, you will need to create either a wrapper DLL or CIN that will take in all of the data individually construct the structure, and send it to the DLL function.
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Randy Hoskin
Applications Engineer
National Instruments
http://www.ni.com/ask

Help to make opencv's dll and LabVIEW's Call Library function node understanding each others

Hi, i have a little problem trying to use a C++ opencv's dll in labview. I wrote a really simple and stupid dll just to try to understand how it works the call library function node. Here the header code:
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#define GENERICDLL_API __declspec(dllexport)
#else
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#include <opencv2/highgui/highgui.hpp>
#include <iostream>
#include <string.h>
#include <stdio.h>
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class GENERICDLL_API CGenericDLL {
public:
int Summ(int a, int b);
int Sott(int a, int b);
int opencv(int a);
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// Generic DLL.cpp: definisce le funzioni esportate per l'applicazione DLL.
#include "stdafx.h"
#include "Generic DLL.h"
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
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#include <string.h>
#include <stdio.h>
#include <opencv/cv.h>
#include <opencv/highgui.h>
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GENERICDLL_API int Summ(int a, int b)
return a+b;
GENERICDLL_API int Sott(int a, int b)
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GENERICDLL_API int opencv(int a)
const string ind = "C:\\Users\\sviluppo\\Desktop\\Tuli.bmp";
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Francesco.

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I'm having exactly the same problem as you. I created a DLL that I can easily access from LabView. If I add one line and include "imgproc.hpp" (the only one I need), then LV gives me the same error you had. I read the thread Loura linked to, but I don't see how people actually take care of the dependecies (Klemen's examples did not work for me for the same reason, even though I recompiled the .cpp). Could you explain in detail what you did to make it work?
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How to give the application server file path in the module pool programming

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if container2 is initial.
CREATE OBJECT CONTAINER2
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CALL METHOD PICTURE2->SET_DISPLAY_MODE
EXPORTING
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EXCEPTIONS
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    ERROR = 1
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Hi guys,
here i amproviding some sample code.
requirement is uploading data from xl to internal table.
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using cl_gui_frontend_services.
type mismatching is occuring.
DATA: wa_filename1 TYPE file_table,        "for method
       wa_filename2 TYPE rlgrap-filename,   "for function module
       wa_data TYPE alsmex_tabline.
DATA:    t_data TYPE STANDARD TABLE OF alsmex_tabline.
DATA:      file_count TYPE i.
selection-screen begin of block bk1 with frame title text-001.
parameters:p_fname type char10.
selection-screen end of block bk1.
at selection-screen on value-request for p_fname.
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    file_table              = P_fname
    rc                      = file_count
EXCEPTIONS
    file_open_dialog_failed = 1
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    not_supported_by_gui    = 4
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start-of-selection.
LOOP AT p_fname INTO wa_filename1.
wa_filename2 = wa_filename1.
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CALL FUNCTION 'ALSM_EXCEL_TO_INTERNAL_TABLE'
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      filename                = wa_filename2
      i_begin_col             = 1
      i_begin_row             = 1
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      i_end_row               = 88
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      intern                  = t_data
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      inconsistent_parameters = 1
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u can expect more rewards.

my code sample:
REPORT zcobkk01.
* INCLUDES                                                             *
INCLUDE zcobkk01top.
* SELECTION-SCREEN                                               *
SELECTION-SCREEN BEGIN OF BLOCK b1 WITH FRAME TITLE text-001.
PARAMETER p_file TYPE string OBLIGATORY.
SELECTION-SCREEN END OF BLOCK b1.
* AT SELECTION-SCREEN                                                          *
AT SELECTION-SCREEN ON VALUE-REQUEST FOR p_file.
CLEAR it_file.
CLEAR v_rc.
CALL METHOD cl_gui_frontend_services=>file_open_dialog
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      window_title            = 'title here'
      initial_directory       = 'C:'
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      file_table              = it_file
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      file_open_dialog_failed = 1
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* START-OF-SELECTION                                                   *
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Nested library function call

Is it possible to create a DLL using the LabVIEW Application Builder from a VI that already contains a library function call?
Thanks,
mlloyd

Hi mlloyd,
This should definitely possible. If you dig deep enough, you'll realize that some of our VIs such as DAQmx, signal analysis, etc, use Call Library Function Nodes, and you can build those into a dll, so this should work.
Best regards,
-Sam F, DAQ Marketing Manager
Learn about measuring temperature
Learn how to take voltage measurements
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Issue using DLL / library function node

Hi All
I am using labview 8.2 / 8.0
I am writing a wrapper DLL to convert compex data types of a DLL to simpler ones for labview intefacing.
I have read the forums on all related items and could not find a solution.
I have cut my code back to basics and I am still getting error 1097 with 8.2 and a crash with 8.0
The error occurs as follows:
1) Start labview, open the vi.
2) Run vi - everything works (so far the wrapper DLL I am writing call just does a simple open handle and close handle on a driver dll).
The handle is passed back to the vi, and everything is good.
I can re-run the application numerous times and it always works
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Labview 8.0 crashes on closing the vi
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I don't know what the error is, but I've tried everything I can think of! Any suggestions would be appreciated!
Note: I am not passing any arrays at the moment, but I am passing one unsigned 32 bit int pointer. I declare a constant for this in the call, so there is something for the pointer to use, and it seems to return the data ok.

Hi Kaem,
Thanks for your reply.
I have written C++ standalone programs that link to the DLL and these work fine. I have even called my wrapper DLL from a C++ program and that too works fine (just to check if the wrapper would cause issues there). I have a hunch that it is actually the DLL that my wrapper is 'wrapping' that is causing the issue, but I guess I don't know for sure.
The difference (IMHO) is that these C++ programs all run through once and then exit, so everything works fine. However if they load the DLL and unload it and try to load it again, maybe there would be an issue. I think labview is doing this.
The reason I think labview does something funny with the DLL after you exit a VI (but not labview) is because labview crashes in 8.0 when the VI is closed (8.2 is ok, but the next DLL invocation fails when the VI is reopened), so something must be happening at this point - and I think it's an ungraceful unload of the DLL.
Also, I've noticed that I cannot overwrite my wrapper DLL with a new version until I exit a VI - so labview is definitely doing something on VI close - it's releasing some lock on the DLL.
I don't use any consts in my code - sorry if I indicated that. What I have is a U32 constant in labview, and I connect that to the input of the library function node, and pass it as a pointer. And the DLL writes into this then. Are you saying that a labview constant cannot be used as an input to a function and passed as a pointer ? What should I use instead, a control?
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I'm willing to take any and all suggestions!!
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John

Call Library Function Node

When using a call library function node and program is exited, I get a "has encountered a problem and needs to close" error having to do with ntdll. It doesn't stop the program from running correctly, but it is annoying. Any ideas?
Solved!
Go to Solution.

Sorry about the missing information. This is my first post. I am using Labview 2010 on Windows XP SP3. I am including a stripped down version of my application that will produce the same error along with the project file. This only happens when the application is built into an executable. It will also occur if the application is closed before FindWindowA is called. I'm also including a file containing the error that comes up. I appreciate all the help.
As to why I'm doing this myself? Ignorance would be the best explanation. A machine supplier gave me a VB program to communicate with his application. I used the same functions in Labview to do the communication and it worked great. I thought that was pretty cool.
Attachments:
FindWindowA Test.vi ‏25 KB
FindWindowA Test.lvproj ‏7 KB
FindWindowA Error.JPG ‏28 KB

I wrote a assignment in the microsoft word 97-2003 doc but by mistake replace in the same name but with different thing . how can i retain my orinal file which was as Basel III and Banking law

i wrote a assignment of almost 2500 words in the microsoft word 97-2003 doc but by mistake replace a table only in same name . how can i retain my orinal file which was as Basel III and Banking law

Hey Christian
Thanks I havn't seen that post, busy trying it now but no luck so far.
I defined it in the second one (Content Management - Utilities - MIME Types).
Tried it now in NWA, no luck either . . .
What I noticed is no matted what it is defined as in NWA or Content Management, the properties of the mht file still shows Binary File (application/octet-stream)
Any ideas?
Regards
Antonette

1) how to assign name to Universal Library function TIN and VIN? or 2) how to provide headings in measurement file?

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