How To: Return ArcInfo coverage precision using VBA

Summary

The IPropertySet.GetAllProperties method returns each property's value. The index of 0 contains the precision as a string.

Procedure

1. Use an ArcInfoWorkspaceFactory object to create a pointer to the coverage's workspace.
   
   
   '++ Create a pointer to the data's workspace:
   Dim pWorkspaceFact As IWorkspaceFactory
   Set pWorkspaceFact = New ArcInfoWorkspaceFactory
   Dim pWorkspace As IWorkspace
   Set pWorkspace = pWorkspaceFact.OpenFromFile("c:\geodata\covers", 0)
   Dim pFeatureWorkspace As IFeatureWorkspace
   Set pFeatureWorkspace = pWorkspace
   
   
   
   
2. Open the coverage as a FeatureDataset object.
   
   
   Dim pDataset As IFeatureDataset
   Set pDataset = pFeatureWorkspace.OpenFeatureDataset("covername")
   
   
   
   
   
3. Reference a PropertySet interface's GetAllProperties method. Two variant variables will be populated with the property names and values, respectively.
   
   

   Code:
     Dim props As Variant
     Dim vals As Variant 
     pFeatureDataset.PropertySet.GetAllProperties props, vals 

   
   
   

   Note:
    Since a FeatureDataset object is a type of Dataset object, and a PropertySet is associated with a Dataset, the PropertySet methods are available to the FeatureDataset. 

   
   
   
4. Return precision from the value variable's first index position (0).
   
   

   Code:
     MsgBox pFeatureDataset.Name & " " & props(0) & ": " & vals(0)