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Get unique class codes.
[Visual Basic .NET] Public Function GetUniqueClassCodes ( _ ) As ILongArray
[C#] public ILongArray GetUniqueClassCodes ( );
[C++]
HRESULT GetUniqueClassCodes(
void
);
Returns an Array of LasClassCodeStatistics. The number of entries in the array will equal the number of classes present in the file/dataset.