public string GetParamString(Out123.Params aParam)
{
long null_value = 0; // not interested in int value because want the string value.
double null_fvalue = 0; // not interested in double value because want the string value.
IntPtr strPtr = Marshal.AllocHGlobal(Marshal.SizeOf <IntPtr>());
Out123.Errors error = Out123NativeMethods.GetParam(handle, aParam, ref null_value, ref null_fvalue, strPtr);
if (error != Out123.Errors.OK)
{
throw new Out123.ErrorException(error);
}
IntPtr subPtr = Marshal.ReadIntPtr(strPtr);
if (subPtr == IntPtr.Zero)
{
Marshal.FreeHGlobal(strPtr);
throw new Out123.ErrorException("unknow error");
}
else
{
string result = Marshal.PtrToStringAnsi(subPtr);
Marshal.FreeHGlobal(strPtr);
return(result);
}
}
public long GetParamInt(Out123.Params aParam)
{
long result = 0;
double null_fValue = 0; // not interested in float value because want the int value.
IntPtr null_sValue = IntPtr.Zero;
Out123.Errors error = Out123NativeMethods.GetParam(handle, aParam, ref result, ref null_fValue, null_sValue);
if (error != Out123.Errors.OK)
{
throw new Out123.ErrorException(error);
}
return(result);
}
public double GetParamFloat(Out123.Params aParam)
{
long null_value = 0; // not interested in int value because want the doule value.
double result = 0;
IntPtr null_sValue = IntPtr.Zero; // not interested in sValue because want the doule value.
Out123.Errors error = Out123NativeMethods.GetParam(handle, aParam, ref null_value, ref result, null_sValue);
if (error != Out123.Errors.OK)
{
throw new Out123.ErrorException(this);
}
return(result);
}