Function CP_get_global_param_string

wrappers/MathCAD/CoolPropMathcad.cpp:189–212

This code executes the user function CP_get_global_param_string, which is a wrapper for the CoolProp.get_global_param_string() function, used to get a global string parameter from CoolProp

// This code executes the user function CP_get_global_param_string, which is a wrapper for
// the CoolProp.get_global_param_string() function, used to get a global string parameter from CoolProp
static LRESULT CP_get_global_param_string(LPMCSTRING ParamValue,  // output (value of parameter)
                                          LPCMCSTRING ParamName)  // name of parameter (string) to retrieve
{
    std::string s;
    // Invoke the std::string form of get_global_param_string() function, save result to a new string s
    try {
        s = CoolProp::get_global_param_string(ParamName->str);
    } catch (const CoolProp::ValueError& e) {
        std::string emsg(e.what());
        CoolProp::set_error_string(emsg);
        if (emsg.find("parameter") != std::string::npos)
            return MAKELRESULT(BAD_PARAMETER, 1);
        else
            return MAKELRESULT(UNKNOWN, 1);
    }

    // Must use MathcadAllocate(size) so Mathcad can track and release, using Helper routine above
    char* c = AllocMathcadString(s);
    // assign the string to the function's output parameter
    ParamValue->str = c;

    // normal return
    return 0;
}

// This code executes the user function CP_get_fluid_param_string, which is a wrapper for
// the CoolProp.get_fluid_param_string() function, used to get a fluid string parameter from CoolProp