Is the map permanently sorted on key ?
Source position: fgl.pp line 293
|  public property TFPSMap.Sorted : Boolean | 
Sorted can be set to true to keep the map permanently sorted on key value. The sorting happens using TFPSMap.OnKeyPtrCompare.
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 | Callback to compare 2 keys. | |
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 | Sort the list according to key. | |
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 | What to do with duplicate key values. |