System.TGUID Record

TGUID is a structured form of the value that uniquely identifies an interface.

Pascal

TGUID = packed record
  D1: LongWord;
  D2: Word;
  D3: Word;
  D4: array[0..7] of Byte;
end;

C++

struct TGUID {
  LongWord D1;
  Word D2;
  Word D3;
  array[0..7] of Byte D4;
};

File

System

Description

An interface declaration can specify a globally unique identifier (GUID), represented by a string literal enclosed in brackets immediately preceding the member list. The GUID part of the declaration must have the form :

['{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}']

where each x is a hexadecimal digit (0 through 9 or A through F). On Windows, the Type Library editor automatically generates GUIDs for new interfaces. You can also generate GUIDs by pressing Ctrl+Shift+G in the Code editor.

TGUID provides a structured access to this GUID :

D1 maps to the first 8 hexadecimal digits.

D2 maps to the next 4 hexadecimal digits.

D3 maps to the next 4 hexadecimal digits.

D4 maps to the final 8 hexadecimal digits.

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