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Found 4 results

  1. I've got a 3rd party DLL I call from within my application. One of the functions returns a pointer to a variable length null terminated string. I use the mysterious GetValueByPointer.xnode to dereference the string and return it's value. This works great from within the Labview development environment. I'm using 2013Sp1. But when I compile the application into an executable, the xnode returns an error 7. It appears the DLL is returning a valid pointer, but the xnode can't dereference it. My hunch is that the pointer is crossing some kind of protected boundary, but I don't know for su
  2. Hello, I write here a topic, because I'm looking for a help since I can not deal with some issue for a long time. I'm trying to write LabView program which will program uC flash using JTAG usbWiggler manufactured by Macraigor Systems. The manufacturer provides customers with program to do whole staff connected with programming, but it's stand alone app and I would like to build the programming process into the test sequence performed by LabView (program + test). Additionally the manufacturer provides a library to call various functions related to programming, erasing etc. I tried to write
  3. Hi all I new with labview & i need to take care of LV project at work, the past programmer work was to communicate with our HW during .DLL file {with defined C# function & objects}. my goal is to make this code active (the code is realy good except .dll functions that need to get pointer to struct and not intfloat etc.) I already read the topics: https://decibel.ni.com/content/docs/DOC-9091 http://lavag.org/topic/14528-call-dll/?hl=pointer#entry87090 It deals with related issue, but in this case i need to deliver pointer to struct that already contains data this data already
  4. Hello, I am trying to call a function from a dll with a pointer to a complex struct. I have tried multiple ways to represent the string in the struct (see attached typedefs), but the output clusters from the dll call always has the same values as input (i.e the dll isn't updating the output values). The ref ptr is based on an example from this link and I have attached a screenshot of my code for this case: https://decibel.ni.com/content/docs/DOC-9079 Here is how the vendor defines the struct: typedef struct { dword passkey; //password dword request; //0=readprop, 1=w
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