The dwgIn() function, which calls dwgInFields(), is invoked by the following commands and conditions:
- OPEN (uses kFileFiler)
- UNDO (uses kUndoFiler)
- INSERT, COPY, XREF (use kDeepCloneFiler and kIdXlateFiler)
- WBLOCK (uses kWblockCloneFiler and kIdXlateFiler)
- Any time an object is paged in (uses kPageFiler)