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Questions tagged [labwindows]

LabWindows/CVI is an event-driven, ANSI C programming environment developed by National Instruments.

LabWindows/CVI (CVI is short for C for Virtual Instrumentation) is an event-driven, ANSI C programming environment developed by National Instruments. LabWindows/CVI uses the same libraries and data acquisition modules as the better known National Instrument product LabVIEW, and is thus highly compatible with it.

See

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Prevent user from manipulating folders from 'save file' dialog

I have an application in Labwindows that when a user clicks on a button, 'Save data', the button launches a file selection dialog box. For security reasons I want to disable the user from right clicking any where on the 'file selection dialog box'…
67vette427
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What could cause a Labwindows/CVI C program to hate the number 2573?

Using Windows So I'm reading from a binary file a list of unsigned int data values. The file contains a number of datasets listed sequentially. Here's the function to read a single dataset from a char* pointing to the start of it: function…
Adam Bard
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NI CVI with Python

I'd like to integrate a Python IDLE-esque command prompt interface into an existing NI-CVI (LabWindows) application. I've tried to follow the Python.org discussions but seem to get lost in the details. Is there a resource out there for dummies…
Nate
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Does anyone have experience with National Instruments CVI and source control?

I'm using NI's Labwindows CVI and I'm trying to integrate source control. Supposedly it plays well with anything that fits the MS API (MSSCC/SCC) but I haven't found this to be the case in practice. I'd love if there was a SVN service that works…
Firoso
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Problem communicating FPGA and PC with UM245R USB-parallel conversor

I would like some kind of help in a problem I am having. I am trying to communicate an FPGA (Altera De0 Nano kit, VHDL programming) with a PC (LabWindows CVI software, C programming) through an FTDI (UM245R USB-Parallel conversor). For that I am…
Alejandro Benitez
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NI LabWindows CVI from quantitative developer's perspective

Would the built-in libraries of LabWindows CVI meet the needs of a quantitative developer?
Aki
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Interfacing between LABWINDOWS and dSPACE(MRET)

I have to make an interface between dSPACE(MRET) and Labwindows CVI for my test automation. All my test scripts are already in Labwindows which i want to run in dSPACE. can any of you please tell how to make this interfacing using some DLL file or…
Jeganraj
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How can I create a discrete cosine spectrum analyzer for a computer network using LabWindows CVI?

Can someone help me with a project in NI Lab Windows CVI?The project has the following specifications->Project theme: Discrete cosine spectrum analyzer;Application: computer network;User interface: single panel;Input: client aquires signal,…
tudortdt
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Array too small for DCT transformation in LabWindows CVI

I have been doing a school project about digital watermark based on DCT using LabWindows CVI 2012. I divide an image with the size of 512 * 512 into many 8 * 8 blocks, and then use DCT transformation on each of them. But there is an error message…
Daniel_w
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Does LabWindows/CVI have something similar to _setmode() for setting the file (or stream) translation mode to binary or text?

I am using gSoap to generate ANSI C source code, that I would like to build within the LabWindows/CVI environment, on a Windows 7, 64 bit OS. The gSoap file stdsoap2.c includes several instances of the _setmode() function, with the following…
ryyker
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What is the standard method for reading from Serial Port

I have a test case where I need to read text coming across a serial Bus (RS-232). This text is actually the text output by an embedded PC when it boots up. I then need to parse that text output for certain tokens. I am trying to develop a general…
TestEngineer11
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How to create a Distribtion Kit via the Command Line with CVI/Labview

I've got a NI CVI/Labview project that compiles by using the compile.exe command on the commandline. This generates the expected executables and runs fine on the development PC. However I'd also like to create a Distribution Kit for this project…
Timo
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LabWindows temporary files that can be ignored for version control

I adding an older LabWindows project to version control. What is the temporary files that I can ignore for version control perpuses. I assume all the *.niobj and .cdb files can be ignored as they will be recreated from the source? Any other files? I…
Gerhard
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Sending AT Commands via LabWindows code to SPBT2632C2A

I am trying to make a LabWindows/CVI program that talks with SPBT2632C2A Bluetooth chip. I am using a st eval spbt3atv3 dongle. I am trying to push a button and send a command to chip, but chip do not answer to me. I know my LabWindows program can…
user6825345
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24 bit signed data type

I am recieving data from a ublox GPS module in 24 bit long bitfields (3 bytes of a 4 byte message), and I need to convert these 24 bit data fields to signed decimal values, but I can't find the description of how to do this in the specification.…
prohi the magnificent
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