GetEnumName

Return name of enumeration constant.

Declaration

Source position: typinfo.pp line 421

Description

GetEnumName scans the type information for the enumeration type described by TypeInfo and returns the name of the enumeration constant for the element with ordinal value equal to Value.

If Value is out of range, the first element of the enumeration type is returned. The result is lowercased, but this may change in the future.

This can be used in combination with GetOrdProp to stream a property of an enumerated type.

Errors

No check is done to determine whether TypeInfo really points to the type information for an enumerated type.

See also

Example

program example9;

{ This program demonstrates the GetEnumName, GetEnumValue functions }

{$mode objfpc}

uses rttiobj,typinfo;

Var
  O : TMyTestObject;
  TI : PTypeInfo;

begin
  O:=TMyTestObject.Create;
  TI:=GetPropInfo(O,'MyEnumField')^.PropType;
  Writeln('GetEnumName           : ',GetEnumName(TI,Ord(O.MyEnumField)));
  Writeln('GetEnumValue(mefirst) : ',GetEnumName(TI,GetEnumValue(TI,'mefirst')));
  O.Free;
end.