C / C++ / MFC

UINT LoadFileFunc(LPVOID lParam)
{
  CListCtrl* pCtrl = (CListCtrl*)lParam;
  //open the file here, let's say it is "f" and it is a CStdioFile
  CString csLine;
  while(f.ReadString(csLine)){
    pCtrl->InsertItem(pCtrl->GetItemsCount(), csLine);
  }
  //close your file
}

BOOL CMyView::OnEraseBkgnd(CDC* pDC) 
{
	// TODO: Add your message handler code here and/or call default
	
	//	return CWnd::OnEraseBkgnd(pDC);
	return true;
}

1. Automatic cleanup (no memory leaks).
2. Improved consistency: you get the number of elements by calling size() on the vector, with new/delete it is up to the programmer to record the size elsewhere and get this information in sync with the buffer.
3. realloc-like functionality (vector::resize).
4. You can still have a pointer to raw memory if needed for compatibility with other functions (just pass &v[0]).

MyClass::MyClass()
{
m_pData = NULL ;
}

MyClass::~MyClass()
{
delete []m_pData ;
}

void MyClass::SetSize(int new_size)
{
ASSERT(new_size >= 1) ;
delete []m_pdata ;  // OK to delete NULL pointer
m_pData = NULL ;
m_pData = new char[new_size] ;
}