The following group codes are used by DICTIONARY objects.
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DICTIONARY group codes
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Group code
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Description
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0
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Object name (DICTIONARY)
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5
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Handle
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102
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Start of persistent reactors group; always “{ACAD_REACTORS”
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330
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Soft-pointer ID/handle to owner dictionary
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102
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End of persistent reactors group, always “}”
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330
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Soft-pointer ID/handle to owner object
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100
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Subclass marker (AcDbDictionary)
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280
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Hard-owner flag. If set to 1, indicates that elements of the dictionary are to be treated as hard-owned
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281
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Duplicate record cloning flag (determines how to merge duplicate entries):
0 = Not applicable
1 = Keep existing
2 = Use clone
3 = <xref>$0$<name>
4 = $0$<name>
5 = Unmangle name
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3
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Entry name (one for each entry) (optional)
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350
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Soft-owner ID/handle to entry object (one for each entry) (optional)
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AutoCAD ® maintains items such as mline styles and group definitions as objects in dictionaries. The following sections describe the AutoCAD object group codes maintained in dictionaries; however, other applications are free to create and use their own dictionaries as they see fit. The prefix "ACAD_" is reserved for use by AutoCAD applications.