fpc/docs/typinfex/ex4.pp
2001-09-02 21:45:29 +00:00

34 lines
1014 B
ObjectPascal

program example4;
{ This program demonstrates the GetFloatProp function }
{$mode objfpc}
uses rttiobj,typinfo;
Var
O : TMyTestObject;
PI : PPropInfo;
begin
O:=TMyTestObject.Create;
Writeln('Real property : ');
PI:=GetPropInfo(O,'RealField');
Writeln('Value : ',O.RealField);
Writeln('Get (name) : ',GetFloatProp(O,'RealField'));
Writeln('Get (propinfo) : ',GetFloatProp(O,PI));
SetFloatProp(O,'RealField',system.Pi);
Writeln('Set (name,pi) : ',O.RealField);
SetFloatProp(O,PI,exp(1));
Writeln('Set (propinfo,e) : ',O.RealField);
Writeln('Extended property : ');
PI:=GetPropInfo(O,'ExtendedField');
Writeln('Value : ',O.ExtendedField);
Writeln('Get (name) : ',GetFloatProp(O,'ExtendedField'));
Writeln('Get (propinfo) : ',GetFloatProp(O,PI));
SetFloatProp(O,'ExtendedField',system.Pi);
Writeln('Set (name,pi) : ',O.ExtendedField);
SetFloatProp(O,PI,exp(1));
Writeln('Set (propinfo,e) : ',O.ExtendedField);
O.Free;
end.