Skip to main content

GUIDToStringNoBraces

Function GUIDToStringNoBraces(const aGuid: TGuid): string

Example​

procedure ScriptEvent(var Value: variant);
var
  Identifier: TGuid;
begin
  Identifier := SafeStringToGuid('{12345678-9abc-def0-1234-56789abcdef0}');
  Value := GUIDToStringNoBraces(Identifier);
  // 12345678-9ABC-DEF0-1234-56789ABCDEF0
end;

Usage​

GUIDToStringNoBraces converts a TGuid to uppercase 36-character hyphenated text without braces.

Parameters

NameTypeDescription
aGuidTGuid, constBinary GUID to render. Any 128-bit value, including all zeroes, can be formatted.

Returns

Exactly 36 characters of uppercase hexadecimal and hyphens, without { or }.

Additional Technical Info​

GUIDToStringNoBraces converts a binary TGuid to Delphi's standard uppercase, hyphenated text and removes the generated outer braces. The result is the common 36-character 8-4-4-4-12 form.

The example is fictional, deterministic and source-reviewed. It was not executed by the documentation workflow.

Implementation

The helper calls installed Delphi GUIDToString, which emits a 38-character brace-wrapped value, then calls NoBraces. Because the intermediate is guaranteed to begin { and end }, the custom helper safely removes those two known characters on this path.

Edge cases and quirks

  • Lowercase input history is not preserved; a TGuid has no text casing, and Delphi emits uppercase.
  • The all-zero value becomes 00000000-0000-0000-0000-000000000000 rather than an empty string.
  • No validation is needed once the input is a TGuid; every bit pattern has a printable form.
  • The result contains no braces but retains four hyphens. It is not the compact 32-character N format.
  • This function's use of NoBraces is safe even though arbitrary-string use of that helper can truncate malformed text.

Side effects and errors

Two short string operations/allocations. No state change or expected conversion error for a binary GUID.

Performance and concurrency

Constant-size work with no shared mutable state.

Related entries

External references

Created 2026-07-15