program project1; {$apptype console} uses SysUtils, Windows, cpIntf; var h: Double; begin { Very simple example Get the vapor enthalpy at a given pressure. } h := PropsSI('H', 'P', 101e3, 'Q', 1, 'R22'); writeln(format('h = %0.3f kJ/kg',[1e-3*h])); readln; end.