Comments by David_Pollard (Top 9 by date)

I put this problem on the back burner for a while and went on to other things.
When I came back I had no problem Binding the combo box to the data source exactly as you would expect. (In the GUI)
The solution you proposed looks very nice so I accepted it as an answer :)

OK I have come up with a very simple example program.
The Main method calls Sub1 method to create an array.
The Main method outputs something from the array.
The Main method calls freeMem method to delete the array.
I don't know what I'm doing trying to pass pointers back and forward.
I have included the compile errors as comments below.
If I can get this example to work I should be able to extrapolate it to my actual problem.
Thanks
David

// TestMemoryLeak.cpp : main project file.

#include "stdafx.h"

// Added the follwoing lines for Memory Leak Detection
// Turned off Precompiled Headers in project options
#define _CRTDBG_MAP_ALLOC
#include <stdlib.h>
#include <crtdbg.h>

// Refifines "new" when in debug mode
#ifdef _DEBUG
#ifndef DBG_NEW
#define DBG_NEW new ( _NORMAL_BLOCK , __FILE__ , __LINE__ )
#define new DBG_NEW
#endif
#endif
// End Memory Leak Detection Additions

using namespace System;
#define byte unsigned char

byte* sub1(int arraySize);
void freeMem(int pArray[]); // <-- Just guessing here

int main(array<system::string ^=""> ^args)
{
// Sets memory debug the output to go to the Output Window
_CrtSetReportMode( _CRT_WARN, _CRTDBG_MODE_DEBUG );
int arraySize= 1000;
byte pByteArray;

// Create and Save stuff in the array
pByteArray = sub1(arraySize); //Error 1 error C2440: '=' : cannot convert from 'unsigned char *' to 'unsigned char'

//Just display something from the array
Console::WriteLine(&pByteArray[20]); //Error 2 error C2109: subscript requires array or pointer type

//Free the Memory
freeMem(pByteArray); //Error 3 error C2664: 'freeMem' : cannot convert parameter 1 from 'unsigned char' to 'int []'

// Output the memory leak debug info now.
_CrtDumpMemoryLeaks();
return 0;
}

byte* sub1(int arraySize)
{
// Create the Array
byte* byteArray = new byte [arraySize];
for(int count=1; count < arraySize; count++)
{
// Put stuff in array
byteArray[count]=120; //Just save something in the array.
}
return byteArray;
}
void freeMem(int pArray[])
{
// Destory the array
// or comment to make a leak
delete pArray; //Error 3 error C2541: 'delete' : cannot delete objects that are not pointers

pArray=0;
}

This will take me some trial and error. & and * together confuse the crap out of me.
I have created a bare bones (c++) console app for testing. I should be able to create the same leak in that and then fix it. If I come with a easily understandable example I'll post here.

Ok Thanks that makes some kind of sense. I can fix the code within the Dll.
Should the calling method also allocate the memory or is that ok left where it is?
How should the delete look? I don't want to just delete a pointer to the memory.
Sorry big newbie question I know.