Exit LabView, clean up code.
Hello!
I'm about to finish my LabView application. I have some problems left and I need help to solve them.
My porgram uses some C++ code (which I call from the "Call Library Function Node"). In LabView I've made a sequence where in the first frame all C++ init code is executed, the second frame is the main program and the last frame is the exit and clean up code. The clean up code must execute or there will be ports open, memory leaks, etc. My problem is that if you stop the program from the LabView menu stop button, the program terminates before the last frame is executed. I would like to either remove the LabView stop button or, connect the stop button to my exit code somehow.
Follow up question: If I make an .exe (which is pos
sible right?) are the stop start, stop, debug, etc -buttons still there? Or can you make a "real" application that don't use the LabView buttons to start, stop, etc?
Thanks in advance,
/Thomas
Hi,
I don't know how it is done in C++, but in asssembler, a (windows) dll has a
DllEntry Proc. C++ shoud not be too different.
If the dll is loaded, this proc is called, with reason= DLL_PROCESS_ATTACH.
If the dll is removed from memory, DLL_PROCESS_DETACH is the reason.
If the DllEntry proc is called with reason= DLL_PROCESS_DETACH (when the dll
is removed, e.g. when labview is closed, or all the dll references are
removed from memory), a proper cleanup can be made.
Of cource, this does require keeping track of all things to clean up (memory
created by the dll, etc.).
This is kinda fun, because you can make popups when a dll is loaded. The vi
does not even need to be started. Or you can make the popup appear when the
user is done with the dll, even if no vi is running.
Btw. In LV6, you can capture the 'close' event, and close everything
properly. You can choose to close the window, or to ignore the close.
Btw2. You can remove the menu (or just the exit), so the user is not able to
close LV.
Regards,
Wiebe.
"Tobe" wrote in message
news:[email protected]...
> Hello!
>
> I'm about to finish my LabView application. I have some problems left
> and I need help to solve them.
>
> My porgram uses some C++ code (which I call from the "Call Library
> Function Node"). In LabView I've made a sequence where in the first
> frame all C++ init code is executed, the second frame is the main
> program and the last frame is the exit and clean up code. The clean up
> code must execute or there will be ports open, memory leaks, etc. My
> problem is that if you stop the program from the LabView menu stop
> button, the program terminates before the last frame is executed. I
> would like to either remove the LabView stop button or, connect the
> stop button to my exit code somehow.
>
> Follow up question: If I make an .exe (which is possible right?) are
> the stop start, stop, debug, etc -buttons still there? Or can you make
> a "real" application that don't use the LabView buttons to start,
> stop, etc?
>
> Thanks in advance,
>
> /Thomas
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LabVIEW load error code 10?
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I have received an .llb file from support at Anritsu, for a Wiltron 56100a Scalar network analyzer. It contains numerous priceless VI's. Unfortunately, when I try to open it, I get an error..
"An error occurred loading VI ''. LabView load error code 10: VI version (3.1) is too old to convert to the current LabView version (6.1)"
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Thanks for any suggestions!Go here
http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=0
Click on "become an Enthusiats".
Write a short bio,
Indicate what catagory,
Submit!
Ben
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction -
I have been developing a VI file that has
been working fine, until now. I am using 8.6.
Every time I attempt to open this file
I keep getting:
How do I fix the error code:
Labview: Memory is
full.
An error occurred loading VI. LabView load error code 1:
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On a separate dialog:
“Not enough memory to complete this
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VI:
One or more errors occurred during
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Testing errors tab – Vi not loadable
and my file name. At the bottom in the error description I got:
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test.png 14 KB -
LabVIEW load error cod %ld: %p
All of the sudden, when I tried to open a VI, I got an error message that said, "LabVIEW: Resource not found. An error occured loading VI 'VI name.vi". LabVIEW load error code 1: LabVIEW load error code %ld: %p". I tried to revert that particular VI to the previous version through source control, but that didn't help. Does anyone know what I need to do to fix this? Thanks!
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I had already looked at the link that you posted. Not sure does it apply to me.
Kudos and Accepted as Solution are welcome! -
Why I get Labview load error code 16?
"Labview load error code 16 preventing me from opening the VI"
"I'm having some problems opening a particular VI. I get an error called: "Resource not found"; "Labview Load Error Code 16; Could not load data space link information." This VI cannot be opened, but I would like to somehow get into it (some important codes are in it). The Labview version is 7, the size of vi is about 1.08 Mb, and the system is on a Windows 98. Thanks in advance."Hello James,
Thank you for contacting National Instruments.
Try opening the VI with another version of LabVIEW. You can also try placing the VI as a subVI and then viewing its block diagram.
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I hope this helps!
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