Return Array from DLL

[SamOlsen]

I'm trying to return an array from a DLL.

extern "C" __declspec (dllexport) BYTE* _stdcall ReturnBytes(void)
{
    BYTE v[5];
    BYTE * p;
 
    p = v;
 
    *p++ = 9;
    *p++ = 0;
    *p++ = 2;
    *p++ = 1;
    *p++ = 0;
 
    return p;
}

How do I get these values when calling the DLL from VB.NET. Can I use the Marshal class to recall the pointer?

[weaknessforcats]

You can't do this.

BYTE v[5];
BYTE * p;

p = v;
...
return p;

The array v is a local variable. It get's destroyed when the function completes.

You have to allocate your array on the heap. Then you must remember to delete later. I suggest you use a handle class (smart pointer) for this. There is an article about this in the C/C++ Articles Forum.