C / C++ / MFC

/// .h ///

private:
    // to save all listitem string,like 
    // [listitem0:string1] [listitem0:string2]...  
    // [listitem1:string1] [listitem1:string2]...   
    CTypedPtrList < CPtrList,CStringArray* > m_ptrListAllListItem;

/// .cpp ///

// to add one listitem
void CListboxstrDlg::OnBtnAddlistitem() 
{
    static int sItemIndex = 0;
    CString str;
    str.Format("[listitem%d]",sItemIndex++);
    int nSel = m_list.AddString(str);
  
    CStringArray* pstrArry = new CStringArray [1];
    ASSERT(pstrArry != NULL);
    TRACE("------the new pstrArry addr is:%x \n",pstrArry);  // the addr is:3850cc
    pstrArry->Add(str);
    m_ptrListAllListItem.AddTail((CStringArray*)pstrArry);

    m_list.SetCurSel(m_list.GetCount()-1);
}

// to del one listitem
void CListboxstrDlg::OnBtnDellistitem() 
{
    int nSel = m_list.GetCurSel();
    if (LB_ERR == nSel)
    {
        return;
    }

    POSITION pos;
    pos = m_ptrListAllListItem.FindIndex(nSel);
    if (pos)
    {
        CStringArray* ptStrArry;
        ptStrArry = (CStringArray*)m_ptrListAllListItem.GetAt(pos);   
        TRACE("the ptStrArry addr is %x \n",ptStrArry); // the addr also is:3850cc
          
        m_ptrListAllListItem.RemoveAt(pos);
        delete ptStrArry;    // but this line debug info:
        // HEAP[listboxstr.exe]: Invalid Address specified to RtlValidateHeap( 00380000, 003850AC )        
        // :(  the CStringArray cannot delete like this? :confused:
        
        m_list.DeleteString(nSel);
        m_list.SetCurSel(nSel - 1);
    }    
}

//-----------------------------------------------------------------
// Exercise1 Resources
// RC Source - exercise1.rc
//-----------------------------------------------------------------

//-----------------------------------------------------------------
// Include Files
//-----------------------------------------------------------------
#include "Resource.h"

//-----------------------------------------------------------------
// Icons
//-----------------------------------------------------------------
IDI_FISHL		ICON		"Res\\fishicon.ico"
IDI_FISHS		ICON		"Res\\fishiconsm.ico"

//-----------------------------------------------------------------
// Bitmaps
//-----------------------------------------------------------------
IDB_BACKGROUND		BITMAP		"Res\\background.bmp"
IDB_FISH		BITMAP		"Res\\fish.bmp"
IDB_BUBBLE		BITMAP		"Res\\bubble.bmp"

//-----------------------------------------------------------------
// Wave Sounds
//-----------------------------------------------------------------
IDW_BUBBLES		WAVE		"Res\\bubbles.wav"

//-----------------------------------------------------------------
// exercise1 Resource Identifiers
// C++ Header - Resource.h
//-----------------------------------------------------------------

//-----------------------------------------------------------------
// Icons                    Range : 1000 - 1999
//-----------------------------------------------------------------
#define IDI_FISHL		1000
#define IDI_FISHS		1001

//-----------------------------------------------------------------
// Bitmaps                  Range : 2000 - 2999
//-----------------------------------------------------------------
#define IDB_FISH			2000
#define IDB_BACKGROUND		2001
#define IDB_BUBBLE			2002
//-----------------------------------------------------------------
// Wave Sounds              Range : 3000 - 3999
//-----------------------------------------------------------------
#define IDW_BUBBLES			3000