C / C++ / MFC

struct myListItem
{
        char *itemText;
        int origPos;
        myListItem *nextItem;
        myListItem *prevItem;
};

// *****No error checking*******
// ** no code provided for initialization of list **
// checks a linked list for the provided text. If found, pointer to that item is returned
// if not found, the text is added to the list and a pointer to the new list item is returned
myListItem *add(myListItem *linkedListHead, char *newText)
{
    myListItem *curItem;
    bool alreadyExists = false;
    int curItemNum = 0;

    curItem = linkedListHead;
    if (curItem != NULL)
    do
    {
        if (!strcmp(curItem->itemText, newText))
            return curItem;
        curItem = curItem->nextItem;
        curItemNum++;
    }while (curItem->nextItem != NULL);
    else return NULL;   // we were passed a NULL pointer instead of the head of a list. exit

    // create the new list item
    curItem->nextItem = (myListItem*) malloc(1*sizeof(myListItem));
    // set it's prevItem member to point to us ,so we can traverse the list forwards or backwards
    curItem->nextItem->prevItem = curItem;
    // keep track of where the item was added. This means we can sort the list and still unsort it later
    curItem->origPos = curItemNum;
    // move to the new item
    curItem = curItem->nextItem;
    // allocate memory for the text
    curItem->itemText = (char*) malloc(strlen(newText)+1);
    // copy the text
    strcpy(curItem->itemText, newText);
    // bugger off
    return curItem;
}

Trollslayer wrote:

Any suggestions?

frqftgbdafr wrote:

Where does it get this information?

frqftgbdafr wrote:

Has my program registered itself in the registry?

frqftgbdafr wrote:

I was wondering, is there an easy way to have my app store it's current window size and screen position into the registry on close?

//this works
LPCTSTR sourcePath = "C:\\somefolder\\file.ext";
LPCTSTR destPath = "C:\\folder2\\file.ext";

//this also works
LPCTSTR sourcePath = origpath->c_str();
LPCTSTR destPath = "C:\\folder2\\file.ext";

//this does not work even though i have checked and the values are correct, says "The filename, directory name, or volume label syntax is incorrect."
LPCTSTR sourcePath = origpath->c_str();
LPCTSTR destPath = dest.c_str();

TCHAR szStr [] = _T("12.45.67.89");
...
if (RegSetValueEx(hKey, TEXT("public"), NULL, REG_SZ, (BYTE *)szStr, sizof (TCHAR) * lstrlen (szStr)) ==ERROR_SUCCESS)
...

<code>TCHAR</code> szStr[20]= <code>_T(</code>"12.45.67.89"<code>)</code>;
HKEY hKey;

// opening a subkey, then creating and setting a value
if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, 
               _T("SYSTEM\\CurrentControlSet\\Services\\SNMP\\Parameters\\s1"), 
                     0, KEY_ALL_ACCESS, &hKey) != ERROR_SUCCESS)
{
   printf("\nError opening the desired subkey (doesn't exist?).\n");
}
else
{
   if (RegSetValueEx(hKey, _T("public"), NULL, REG_SZ, <code>(const BYTE *)</code>szStr, <code>(_tcslen(szStr)+1)*sizeof(TCHAR)</code>) == ERROR_SUCCESS)
      printf("\nThe value of the key was set successfully.\n");
   else
      printf("\nError setting the value of the key.\n");

   <code>RegCloseKey(hKey);</code>
}

Mark Salsbery
Microsoft MVP - Visual C++