Adding an "IMAQ Image.ctl" to the "Display State.ctl" of an XControl prevents LabVIEW from creating a probe of "Display State.ctl"

[IngoB]

I am working on an extended IMAQ Display control using LabVIEWs XControl capabilities.

I need a copy of the original image passed to add some overlays which must not affect the original image. To achieve this I am creating a backup image in the "Init.vi" and deleting it in the "Uninit.vi". I am storing the reference of this image in the "Display State.ctl" which is part of every XControl.

As soon as I am adding an "IMAQ Image.ctl" to the Display State cluster, it is no longer possible to generate a probe of the Display State cluster for debugging purposses. I am always getting the message: "Failed to load or create probe."

Deleting the "IMAQ Image.ctl" from the cluster makes the probe working again.

Is it a bug or am I doing something wrong?

I am working with LabVIEW 8.5 and Vision 8.5.

Regards

Ingo Bartsch

[Jan_Kniewasser]

Hello Mr. Bartsch,

is it possible for you to post a small example to reproduce the behaviour? It would be helpful to get a description in which way you use the typedef files.

I found a example/knowledge base where some informations were included to XControl and LV but not with Vision.

http://digital.ni.com/public.nsf/allkb/1DC1ADD2A136DA298625712C00635758?OpenDocument

Best wishes

Jan Kniewasser

[IngoB]

Thanks for your reply, Mr. Jingles,

but the example has nothing to do with my problem. My project is a little bit too big to post it. Maybe I find some time to write a small example project next week.

Regards

Ingo Bartsch

[Elmar_NI]

Hello Mr. Bartsch,

i think its better if you post your email adress so that i can contact you directly.
After that i will post the solution for all the other users.

Kind regards,

Elmar

[IngoB]

Hello Elmar,

please see my profile. I have enabled my email address temporarily .

Thanks

Ingo

[Elmar_NI]

Hello Ingo,

i didn´t found the email adress so i think you should call NI Germany with the SRQ Number 625574 to talk about the problem.

King Redards,

Elmar

[Elmar_NI]

Information for all other users.

Its a known issue in VDM 8.5 with the control if you want create your own active X element from image display ctr.
You get an error "failed to load or create a probe" if you use a probe.
The developer from the US are already working on that and it should be fixed in the next release.
Here the CAR ID: 4E0D19SN

Kind regards,

Elmar