Why am I getting "Top-level objects were not released" warning?

[JoeDG]

I'm trying to use the TestStand API in LabVIEW to return some properties of a sequence file, and keep getting a warning "The following top-level objects were not released" after my code finishes running.  Below is an example snippet, and the resulting error text.  I thought I was correctly releasing the sequence file by calling ReleaseSequenceFileEx, but there seems to still be a problem.  Anyone know what I'm doing wrong?

Thanks,

-Joe

 

References to PropertyObjects were not released properly.    Total number of objects: 1269    Number of top-level objects: 24
    Note: Some top-level objects may be included if they are referenced by    an incorrectly released top-level object. For example, an unreleased    SequenceContext object references a SequenceFile object.
    The following top-level objects were not released:
        Files [1 object(s) not released]            SequenceFile #1:                Path: C:\Sequence File 1.seq

        Type Definitions [20 object(s) not released]            Type Definition #1:                Name: PassFailTest
            Type Definition #2:                Name: FlexCStepAdditions
            Type Definition #3:                Name: FCParameter
            Type Definition #4:                Name: FlexGStepAdditions
            Type Definition #5:                Name: VIParameter
            Type Definition #6:                Name: VIParameterElement
            Type Definition #7:                Name: EditSubstep
            Type Definition #8:                Name: CommonResults
            Type Definition #9:                Name: Error
            Type Definition #10:                Name: TEInf
            Type Definition #11:                Name: NI_CommonCParameterResult
            Type Definition #12:                Name: NI_LabVIEWParameterResult
            Type Definition #13:                Name: NI_CustomResult
            Type Definition #14:                Name: NI_PropertyObjectType
            Type Definition #15:                Name: NI_ArrayDimensions
            Type Definition #16:                Name: StepTypeSubstepsArray
            Type Definition #17:                Name: StepTypeNIData
            Type Definition #18:                Name: StepTypeMenu
            Type Definition #19:                Name: Expression
            Type Definition #20:                Name: Path

        PropertyObjects [2 object(s) not released]            PropertyObject #1:                Type: Number                Value: 0
            PropertyObject #2:                Type: Number                Value: 0

        And the following uncategoried objects:            TypeUsageList (Obj)

[dug9000 · Accepted solution]

A couple of things

1) You are not closing the sequence file reference.

2) Since the application manager is being passed in I don't think you are supposed to close that reference. I'm not a labview expert though so I might be wrong, in C/C++ it would work this way though (a reference passed in as a parameter would not be one you are expected to release).

Hope this helps,

-Doug

[JoeDG]

Thanks, Doug. Your suggestions worked.  I thought the ReleaseSequenceFileEx call was taking care of the sequence file ref, but I guess not.  That's what I get for trying to code with this API without understanding it very well. 🙂

Here's the working code: