I am writing a program in which Visual Basic 6 modules call an Intel Fortran DLL.
In the prototype stages, I received the error discussed in this thread.
However, I was unable to find the solution, and, eventually, re-wrote the entire software from scratch.
The problem has returned, but development is now too advanced to take that approach again.
I am getting the error message:
Compile error:
Member already exists in a object module from which this object module derives.
I have attached a zip file containing the two VB modules which call the DLL and the two subroutines in the DLL.
The error appears when Calc_Airspeed is compiled within Calc_Airspeed_button_Click.
The same DLL is called, but the subroutine is different.
However, it is possible that I shall be calling the same routine from two different modules as the software expands.
Both declarations are Private.
Can anyone help?
Thanks,
Mark.
