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True

True = 1

Example​

procedure ScriptEvent(var Value: variant);
var
  IncludeRecord: Boolean;
begin
  IncludeRecord := True;

  if IncludeRecord then
    Value := 'Included';
end;

Usage​

Represents the Boolean true condition and the one-valued member of Velox scripting's Boolean type.

Conditions and short-circuiting

An if, while or Boolean expression treats True as the satisfied branch. Velox uses short-circuit Boolean evaluation. For Boolean operands:

  • True or RightExpression does not need to evaluate RightExpression;
  • True and RightExpression must evaluate RightExpression to determine the result; and
  • not True evaluates to False.

Do not rely on a function call in the right-hand side of an or expression for a required side effect, because it will not run when the left side is True.

Additional Technical Info​

True is the affirmative member of PascalScript's Boolean type. Use it when a logical condition is satisfied or when explicitly enabling a Boolean option.

The example takes the if branch and sets Value to Included. It is source-reviewed and is not executed by the documentation workflow.

Type and value

Velox's modified PascalScript compiler creates Boolean from (False, True). True is consequently the enum member with ordinal one. It is a built-in language value, not a Velox-imported mutable variable or a general-purpose numeric flag.

Although converting the enum member to an ordinal context produces one, keep it Boolean in ordinary script logic. External systems may use other true representations, and native Delphi also has interop Boolean types with different sizes or true bit patterns.

Conversion boundaries

  • True and the Velox comparison constant MoreThan both have numeric representation one, but one is logical and the other is an ordering code. Do not substitute one name for the other.
  • Do not assume every nonzero integer, nonempty string or populated Variant is automatically a valid Boolean. Validate and convert dynamic input explicitly.
  • When exporting a Boolean to a database, text file or API, map it to the exact representation required by that target rather than relying on the internal ordinal.

Side effects

None. True is a compile-time language value.

Errors

Referencing True itself does not raise. Invalid conversion from a dynamic value can fail before a Boolean assignment or expression is evaluated.

Performance and concurrency

Reading the value requires no allocation, I/O or shared mutable state. Short-circuiting can avoid evaluation of the right operand.

Related entries

  • False is the other Boolean member.
  • Boolean defines the logical type.
  • MoreThan is the numeric one result used by Velox comparison functions; it is not a Boolean alias.
  • Boolean operators explains logical expressions.

External references

Created 2026-07-15