Pass char array to c++ DLL and return same char array

Question

Lectori Salutem,
Here is the situation:
Im learning TestStand, and to learn the basics, I want to do the following:
Call a (C++) DLL in TestStand with an array of chars.
The DLL should return the array of chars (or a pointer to the datalocation).
This is the code in my DLL:
TESTDLL3_API char* bounceString(char data[])
  data = "Hello World";
  cout << data;
char* pointer = data;
return pointer;
However, this function will not be recognized by TestStand
When this is working, I think I can build the rest of the functionality by myself.
Thanks in advance for any help!
Jeroen
The Netherlands
Solved!
Go to Solution.

Answer 1

Sadly, in the example there is no return value to TestStand.
However, I did manage to return the pointer of the char array to TestStand:
int __declspec( dllexport )  bounceString2(char* argument)
  void *pointer;
  int i;
  argument = "Hello";
  pointer = argument;
  i = (int) pointer;
  return i;
So, right now I have to find out how to retrieve the char array from the pointer...
Jeroen
PS, I will look at the CVI code, and let you know about my process