RAD Studio VCL Reference
TFiler.DefineBinaryProperty Method

Introduces an abstract method that allows descendants to read and write unformatted data like a property.

procedure DefineBinaryProperty(const Name: string; ReadData: TStreamProc; WriteData: TStreamProc; HasData: Boolean); virtual; abstract;
virtual __fastcall DefineBinaryProperty(const AnsiString Name, TStreamProc ReadData, TStreamProc WriteData, Boolean HasData) = 0;

Each descendant filer object declares a DefineBinaryProperty method that reads or writes binary data as if the data were a property. 


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