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VSQuerycount/vsqfnelt
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Retrieves the number of records in a vdata.
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VSQueryfields/vsqfflds
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Retrieves the names of the fields in a vdata.
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VSQueryinterlace/vsqfintr
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Retrieves the interlace mode of the vdata.
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VSQueryname/vsqfname
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Retrieves the name of a vdata.
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VSQueryref/vsqref
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Returns the reference number of a vdata.
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VSQuerytag/vsqtag
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Returns the tag of the specified vdata.
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VSQueryvsize/vsqfvsiz
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Retrieves the size of a record in a vdata.
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