Interprocess Communication C++ - LabView

Hi,
I have a C++ *.exe file wich is grabbing images with a Matrox framegrabber. This program ist startet via "system exec" from LabView. I want to do a kind of time measurement with this program so i need the exact time when the grabbing of frame starts. At the moment I dont know how long the *.exe file needs to initialize the framegrabber (something about 500-1000ms).
My idea is to start a continous grabbing but start saving the images when another command via LabView will be send to the C++ application. But I don't know how to send this command! It should be a kind of a "wait until key pressed" controlled by LabView. Maybe a global bolean or something like that.
I hope somebody can help me!
(programming with LabView 7.0 and Visual C++ 2003.NET)

Hi,
What
you are looking for is called an “inter-application communication”.
There
are several options to realize it. LabVIEW supports TCP/IP, ActiveX or UDP to
communicate with another application. So
it’s not as simple as using a “global Boolean”
as you mentioned.
I advise you, to use the LabVIEW
examples which shipped with the NI example finder to get some programs as
reference. Search for keywords like TCP/IP, ActiveX and UDP.
Attached
you’ll find a link to a knowledgebase.
Hope this helps.
How Do I Use LabVIEW to Communicate with Other
Applications?
http://digital.ni.com/public.nsf/allkb/B3959ED76D55A9E586256965004D8092?OpenDocument
Regards,
Ulrich
AE NICER

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USBRawControl.vi ‏152 KB

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Hi again:
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DlnLibrary.Net.llb ‏574 KB
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Interproce​ss Communicat​ion C++ - LabView

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Interprocess Communication C++ - LabView