Trouble Adding to ComboBox (*not* an LB_ issue..)

I have been absolutely banging my head against various hard surfaces trying to understand what the problem is here.

I am creating a clipboard monitoring utility that, at this point, will simply see if the clipboard item is text, if so, add it to a ComboBox. Should be about the easiest thing to do, right?? All I get is garbly-gook when I SendMessage to ComboBox using the code below. If I replace the LPARAM with TEXT("test"), "test" is added to the ComboBox successfully.

Any help would be GREATLY appreciated. I'm using Code::Blocks IDE and compiling with MinGW / GNU C++

Code:

    if (!IsClipboardFormatAvailable(CF_TEXT))
        return;
    if (!OpenClipboard(clipWnd))
        return;

    HGLOBAL hglb = GetClipboardData(CF_TEXT);
    if (hglb != NULL)
    {
        LPCTSTR str  = (LPCTSTR) GlobalLock(hglb);

        if (str != NULL)
        {
            SendMessage(hComboBox, CB_INSERTSTRING, 0, (LPARAM) str);
            SendMessage (hComboBox, CB_SETCURSEL, 0, 0);
            GlobalUnlock(hglb);
        }
    }

    CloseClipboard();

Well, I found the problem, I'm requesting the clipboard data in the CF_TEXT instead of CF_UNICODETEXT....