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Categories / Delphi / Algorithm Math

 

How to convert a hexadecimal number into a binary number

Title: How to convert a hexadecimal number into a binary number function HexToBin(Hexadecimal: string): string; const BCD: array [0..15] of string = ('0000', '0001', '0010', '0011', '0100', '0101', '0110', '0111', '1000', '1001', '1010', '1011', '1100', '1101', '1110', '1111'); var i: integer; begin for i := Length(Hexadecimal) downto 1 do Result := BCD[StrToInt('$' + Hexadecimal[i])] + Result; end; procedure TForm1.Button1Click(Sender: TObject); begin ShowMessage(HexToBin('FFA1')); // Returns 1111111110100001 end;