Why does CVI 6 crash when I put breakpoints in UIR callbacks

[gusscott]

I am debugging code which uses a callback to a text box. If I insert a breakpoint in the callback and change focus between the c code window and my application the CVI task bar button flashes and CVI OFTEN crashes. I have disabled all other applications(Virus checkers etc). can you help. gus

[Chris Matthews]

I've never seen this behavior before. When you are suspended, then your application process is in a suspended state. Therefore, you won't see screen updates in your windows or be able to move your application windows. What do you mean when you say CVI crashes? Do you get an error message? We could help more if we could reproduce the problem. Could you give us an example project and instructions on how to cause the problem to occur.

Best Regards,

Chris Matthews
National Instruments

[gusscott]

There are no error messages. CVI completely hangs(I am using win 95 SE) when I CTRL/Alt DEL the task manager says CVI (not responding)
Explorer(Not responding)
My Application (not responding)

ending the CVI task gets explorer working again.

I think it is something to do with the new option to display variable values when the cursor hovers over the variable in the edit window. sometimes I am left with a similar display in the middle of my screen after a hang, but it is not a variable value. Ill try and create a small project to reproduce this. Please let me know if you come up with angthing before then. Thanks GUS.

[Chris Matthews]

Yes, I don't think we've seen this behavior. We would need to reproduce it to see why CVI is hanging. Does it happen with our example programs or just your program?

Chris