What cause display field invisable

[kate]

I am running my test project and found occasionally some of the display fields are invisible (missing, but their labels are all visible) on the panel. I have run the same project in different computer and the displays are right. The disappeared fields include Ring and Numeric displays and I haven’t set “ATTR_VISIBLE” to them. I’d like to know what may cause this kind of problems?

[kate]

Question modification;

The labels disappeared together with the fields in the above case.

[aperez]

Hi Kate,

What version of CVI are you using? I haven't heard of this occurring in CVI 6.0. But back in CVI 5.0 there was a bug that caused ring control's selections to disappear if timer callbacks where active. This was fixed in CVI 5.5.

Does this sound familiar? If not and you are in CVI 6.0 (the latest version), can you attach a project so that I can reproduce it on my computer?

Regards,
Azucena Perez
NI

[kate]

I am using CVI5.0.1. So I have to change the version to solve this problem?

This problem occurs in my computer even when I switch to different project(It has completely different function but the same Ring constant names and these fields were invisible in the same way. Once it worked well and no timer callback in this prj). I have tried several different prj and the same thing happened. Even when I shut down my computer and restart again, I can't even recover from this status( the same thing happens ). Before this happened the prj has been worked well. This kind of invisible problem has happened in other computer once I saw.

[aperez]

I don't completely understand what the problem is. For example, what do you mean by "fields"? Do you mean CVI UI controls? Or do you mean text? Since CVI 5.0 was released more than four years ago, I would strongly suggest that you contact our technical support Engineers at Request Support. They will be able to hel you decide if this is a bug in CVI 5.0 or if it's something related to your project. If it's the former, then it has probably been fixed in a newer version. If it's the latter, our Applications Engineers can help you with your code.

Best Regards,
Azucena Perez
NI

[kate]

The field here refers to the Ring and Numeric UI controls. We found this kind of problems in the standalone executable only while the debug prj worked all right.

[aperez]

The reported bug (dated early 2000) also showed up only when the CVI applicaton was built into an executable. The executable in question had menus and timer callbacks, althought I think the bug showed up even if timer callbacks were absent. So, it is really possible that we're talking about the same thing. But to be sure, I would contact technical support so that they can take a look at your project.

Regards,
Azucena