function getLongitudeTMY3
input String filNam "Name of weather data file" annotation(
Dialog(loadSelector(filter = "Weather files (*.mos)", caption = "Select weather file")));
output Modelica.SIunits.Angle lon "Longitude from the weather file";
end getLongitudeTMY3;
__Dymola_loadSelector by
loadSelector for MSL compliancy as reported by @tbeu
at RWTH-EBC/AixLib#107