Delphi Basics : Ord command

DelphiBasics

Ord
Function

Provides the Ordinal value of an integer, character or enum

System unit

1	function Ord(Arg AnsiChar \| Char \| WideChar \| Enumeration \| Integer):Integer;
2	function Ord (Arg Int64:Int64;

Description

The Ord function returns an integer value for any ordinal type Arg.

It is principally used to convert characters or enumerations into their numeric equivalents.

Related commands

Char		Variable type holding a single character
Chr		Convert an integer into a character
Val		Converts number strings to integer and floating point values

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Example code : Illustrate all Ord types

var
  A   : AnsiChar;
  C   : Char;
  W   : WideChar;
  E   : Boolean;
  I   : Integer;
  I64 : Int64;

begin
  // Set the ordinal type values
  A   := 'A';
  C   := 'C';
  W   := 'W';
  E   := True;
  I   := 22;
  I64 := 64;

  // And show the value of each
  ShowMessage('A = '+IntToStr(Ord(A)));
  ShowMessage('C = '+IntToStr(Ord(C)));
  ShowMessage('W = '+IntToStr(Ord(W)));
  ShowMessage('E = '+IntToStr(Ord(E)));
  ShowMessage('I = '+IntToStr(Ord(I)));
  ShowMessage('I64 = '+IntToStr(Ord(I64)));
end;

Show full unit code

  A = 65
  C = 67
  W = 87
  E = 1
  I = 22
  I64 = 64