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13CList(EVC)

宋鹏 — Sun, 15 Apr 2007 02:57:00 GMT

CList 应用工程文�g�Q�evc�Q?下蝲

宋鹏 2007-04-15 10:57 发表评论

宋鹏 — Wed, 11 Apr 2007 09:03:00 GMT

EnableWindow(EVC)例子下蝲

宋鹏 2007-04-11 17:03 发表评论

创徏虚拟列表ClistCtrl(MFC)&&ListView(API)

宋鹏 — Wed, 04 Apr 2007 02:46:00 GMT

ClistCtrl(MFC)

BOOL CTest::OnInitDialog()
{
CDialog::OnInitDialog();

// TODO: Add extra initialization here

//SP-A1.用工��h��M��个CListCtrl控�g
//SP-A2.插入栏（列）(j��)到控�?/span>
((CListCtrl *)GetDlgItem(IDC_LIST1))->InsertColumn(0, _T("Name"), LVCFMT_LEFT);
((CListCtrl *)GetDlgItem(IDC_LIST1))->InsertColumn(1, _T("Scores"), LVCFMT_LEFT);

//SP-A3.讄��各个栏的宽度
((CListCtrl *)GetDlgItem(IDC_LIST1))->SetColumnWidth(0,50);
((CListCtrl *)GetDlgItem(IDC_LIST1))->SetColumnWidth(1,50);

//SP-23插入栏，�q�制定高�?br> //�?(CListCtrl *)GetDlgItem(IDC_LIST1))->InsertColumn(1, _T("Scores"), LVCFMT_LEFT,50);

// int nColumnCount = ((CListCtrl *)GetDlgItem(IDC_LIST1))->GetHeaderCtrl()->GetItemCount();

//SP-A4.1.插入�?
LV_ITEM lvitem;   //LVITEM�l�构�?/span>

lvitem.mask=LVIF_TEXT; //指出�Ҏ(gu��)��员中的哪些数据进行设�|?/span>
lvitem.pszText=L"vv"; //��文本设为vv
lvitem.iItem=0;   //索引��gؓ(f��)0
lvitem.iSubItem=0;  //没有子项

((CListCtrl *)GetDlgItem(IDC_LIST1))->InsertItem(&lvitem);
//SP-A4.2.插入�?
//((CListCtrl *)GetDlgItem(IDC_LIST1))->SetItemText(0,0,L"aa");
//((CListCtrl *)GetDlgItem(IDC_LIST1))->SetItemText(0,1,L"bb");

return TRUE;  // return TRUE unless you set the focus to a control
               // EXCEPTION: OCX Property Pages should return FALSE
}

ListView(API) �q�是工程文�g 下蝲

//----------------------------------------------------------------------
// DoCreateMain - Process WM_CREATE message for window.
//
LRESULT DoCreateMain (HWND hWnd, UINT wMsg, WPARAM wParam,
                      LPARAM lParam) {
    HWND hwndCB;

    int nHeight;
    HWND hwndLV;
    LPCREATESTRUCT lpcs;

    // Create a command bar.
    hwndCB = CommandBar_Create (hInst, hWnd, IDC_CMDBAR);

    // Add exit button to command bar.
    CommandBar_AddAdornments (hwndCB, 0, 0);

    //SP-A1转换LPARAM
    // Convert lParam into pointer to create structure.
    lpcs = (LPCREATESTRUCT) lParam;

    //SP-A2创徏列表查看控�g
    //
    // Create the list view control.
    //
    hwndLV = CreateWindowEx (0, WC_LISTVIEW, TEXT (""),
                             LVS_REPORT | LVS_SINGLESEL |
                             LVS_OWNERDATA | WS_VISIBLE | WS_CHILD |
                             WS_VSCROLL, 0, nHeight, lpcs->cx,
                             lpcs->cy - nHeight, hWnd,
                             (HMENU)IDC_LISTVIEW,
                             lpcs->hInstance, NULL);
    //SP-A3增加�?br>    // Add columns.
    {
        LVCOLUMN lvc;

        lvc.mask = LVCF_TEXT | LVCF_WIDTH | LVCF_FMT | LVCF_SUBITEM;
        lvc.fmt = LVCFMT_LEFT;
        lvc.cx = 150;
        lvc.pszText = TEXT ("Name");
        lvc.iSubItem = 0;
        SendMessage (hwndLV, LVM_INSERTCOLUMN, 0, (LPARAM)&lvc);

        lvc.mask |= LVCF_SUBITEM;
        lvc.pszText = TEXT ("Type");
        lvc.cx = 100;
        lvc.iSubItem = 1;
        SendMessage (hwndLV, LVM_INSERTCOLUMN, 1, (LPARAM)&lvc);

        lvc.mask |= LVCF_SUBITEM;
        lvc.pszText = TEXT ("Size");
        lvc.cx = 100;
        lvc.iSubItem = 2;
        SendMessage (hwndLV, LVM_INSERTCOLUMN, 2, (LPARAM)&lvc);
    }

    return 0;
}

//SP-A4改变�H�口大小�Q�显�C�列表查看控�?br>//----------------------------------------------------------------------
// DoSizeMain - Process WM_SIZE message for window.
//
LRESULT DoSizeMain (HWND hWnd, UINT wMsg, WPARAM wParam, LPARAM lParam){
    HWND hwndLV;
    RECT rect;

    hwndLV = GetDlgItem (hWnd, IDC_LISTVIEW);

    // Adjust the size of the client rect to take into account
    // the command bar height.
    GetClientRect (hWnd, &rect);
    rect.top += CommandBar_Height (GetDlgItem (hWnd, IDC_CMDBAR));

    SetWindowPos (hwndLV, NULL, rect.left, rect.top,
                  rect.right - rect.left, rect.bottom - rect.top,
                  SWP_NOZORDER);
    return 0;
}

宋鹏 2007-04-04 10:46 发表评论

(EVC)�?r��n)态CListCtrl

宋鹏 — Tue, 03 Apr 2007 08:57:00 GMT

BOOL CTest::OnInitDialog()
{
CDialog::OnInitDialog();

// TODO: Add extra initialization here

//SP-A1.用工��h��M��个CListCtrl控�g
//SP-A2.插入栏（列）(j��)到控�?br> ((CListCtrl *)GetDlgItem(IDC_LIST1))->InsertColumn(0, _T("Name"), LVCFMT_LEFT);
((CListCtrl *)GetDlgItem(IDC_LIST1))->InsertColumn(1, _T("Scores"), LVCFMT_LEFT);

//SP-A3.讄��各个栏的宽度
((CListCtrl *)GetDlgItem(IDC_LIST1))->SetColumnWidth(0,50);
((CListCtrl *)GetDlgItem(IDC_LIST1))->SetColumnWidth(1,50);

//SP-23插入栏，�q�制定高�?/strong>
//�?(CListCtrl *)GetDlgItem(IDC_LIST1))->InsertColumn(1, _T("Scores"), LVCFMT_LEFT,50);

// int nColumnCount = ((CListCtrl *)GetDlgItem(IDC_LIST1))->GetHeaderCtrl()->GetItemCount();

//SP-A4.1.插入�?
LV_ITEM lvitem;   //LVITEM�l�构�?/p>
lvitem.mask=LVIF_TEXT; //指出�Ҏ(gu��)��员中的哪些数据进行设�|?br> lvitem.pszText=L"vv"; //��文本设为vv
lvitem.iItem=0;   //索引��gؓ(f��)0
lvitem.iSubItem=0;  //没有子项

((CListCtrl *)GetDlgItem(IDC_LIST1))->InsertItem(&lvitem);
//SP-A4.2.插入�?
//((CListCtrl *)GetDlgItem(IDC_LIST1))->SetItemText(0,0,L"aa");
//((CListCtrl *)GetDlgItem(IDC_LIST1))->SetItemText(0,1,L"bb");

return TRUE; // return TRUE unless you set the focus to a control
               // EXCEPTION: OCX Property Pages should return FALSE
}

宋鹏 2007-04-03 16:57 发表评论

(evc)动态创建列表框

宋鹏 — Mon, 02 Apr 2007 06:41:00 GMT
BOOL CTest::OnInitDialog()
{
CDialog::OnInitDialog();

//动态创建列表框
//----------------------------------------------------
#define IDC_LISTBOX 112    //列表框标识，攑֜�头文件中
CListBox *pList = new CListBox;  //�l�列表框对象分配内存�Q�在成员变量中定�?br> pList->Create(WS_CHILD
     |WS_VISIBLE
     |WS_VSCROLL
     |WS_HSCROLL
     |WS_TABSTOP,
     CRect(10,10,100,150),
     this,
     IDC_LISTBOX);

delete CListBox;   //用完之后删除
//-----------------------------------------------------

return TRUE; // return TRUE unless you set the focus to a control
               // EXCEPTION: OCX Property Pages should return FALSE
}

宋鹏 2007-04-02 14:41 发表评论

宋鹏 — Mon, 02 Apr 2007 05:28:00 GMT

ListBox的工�E�文�?/a>
1、在资源��览器中MENU的菜单上生成一个弹出按钮Test
2、在资源��览器里insert dialog
3、将该对话框�q�接到CDialog�z��c�CTest(自己创徏的新�c?
//�q�样在单击Test时就�?x��)弹出CTest兌��的对话框Test
4、在插入的对话框上可视化��d��一个ListBox控�g
5、在CTest中添加CTest对话框的初始化消息响应函敎ͼ�如下

BOOL CTest::OnInitDialog()
{
CDialog::OnInitDialog();

// TODO: 自己��d��的代�?br>//增加列表框的��?br>  ((CListBox *)GetDlgItem(IDC_LIST1))->AddString(L"BeiJIng");

return TRUE;
}

6、在Test按钮的消息相应函��C��定义对象�Q�弹出对话框
void CMainFrame::OnTest()
{
// TODO: Add your command handler code here

CTest test;
test.DoModal();
}

宋鹏 2007-04-02 13:28 发表评论

MultiByteToWideChar和W(xu��)ideCharToMultiByte用法详解

宋鹏 — Mon, 02 Apr 2007 02:18:00 GMT

引用自http://www.shnenglu.com/sunraiing9/archive/2007/03/21/20281.html

//========================================================================
//TITLE:
//    MultiByteToWideChar和W(xu��)ideCharToMultiByte用法详解
//AUTHOR:
//    norains
//DATE:
//    �W�一�?Monday 25-December -2006
//    增补�?Wednesday 27-December -2006
//    修订�?Wednesday 14-March-2007 (修正之前的错误例�?
//Environment:
// EVC4.0 + Standard SDK
//========================================================================

1.使用�Ҏ(gu��)��详解

在本文开始之�?先简要地说一下何为短字符和宽字符.
所谓的短字�W?��是�?bit来表�C�的字符,典型的应用是ASCII�?而宽字符,��֐�思义,��是�?6bit表示的字�W?典型的有UNICODE.关于windows下的ASCII和UNICODE的更多信�?可以参考这两本�l�典著作:《windows �E�序设计�?《windows 核心(j��)�~�程�?�q�两本书关于�q�两�U�字�W�都有比较详�l�的解说.

宽字�W��{换�ؓ(f��)多个短字�W�是一个难�?不过我们只要掌握到其中的要领,便可如鱼得水.
好吧,那就让我们开始吧.

�q�个是我们需要�{化的多字节字�W�串:
char sText[20] = {"多字节字�W�串!OK!"};

我们需要知道�{化后的宽字符需要多��个数组�I�间.虽然在这个里�E�里�?我们可以直接定义一�?0*2宽字�W�的数组,�q�且事实上将�q�行得非常轻松愉�?但假如多字节字符串更�?辑ֈ�上千个乃至上万个,我们��会(x��)发现其中��费的内存将�?x��)越来越�?所以以多字节字�W�的个数的两倍作为宽字符数组下标的声明绝对不是一个好��L��.
所�q?我们能够��知所需要的数组�I�间.
我们只需要将MultiByteToWideChar()的第四个形参设�ؓ(f��)-1,卛_��q�回所需的短字符数组�I�间的个�?
DWORD dwNum = MultiByteToWideChar (CP_ACP, 0, sText, -1, NULL, 0);

接下�?我们只需要分配响应的数组�I�间:
wchar_t *pwText;
pwText = new wchar_t[dwNum];
if(!pwText)
{
   delete []pwText;
}

接着,我们��可以着手进行�{换了(ji��n).在这里以转换成ASCII码做��Z��?
MultiByteToWideChar (CP_ACP, 0, psText, -1, sText, dwSize);

最�?使用完毕当然要记得释攑֍�用的内存:
delete []psText;

同理,宽字�W��{为多字节字符的代码如�?
wchar_t wText[20] = {L"宽字�W��{换实�?OK!"};
DWORD dwNum = WideCharToMultiByte(CP_OEMCP,NULL,lpcwszStr,-1,NULL,0,NULL,FALSE);
char *psText;
psText = new char[dwNum];
if(!psText)
{
   delete []psText;
}
WideCharToMultiByte (CP_OEMCP,NULL,lpcwszStr,-1,psText,dwNum,NULL,FALSE);
delete []psText;

   如果之前我们已经分配好空�?�q�且�׃��字符串较�?可以不理�?x��)浪费的�I�间,仅仅只是想简单地��短字符和宽字符�怺�转换,那有没有什么简便的�Ҏ(gu��)��?
   WIN32 API里没有符合这�U�要求的函数,但我们可以自��p��行封�?

//-------------------------------------------------------------------------------------
//Description:
// This function maps a character string to a wide-character (Unicode) string
//
//Parameters:
// lpcszStr: [in] Pointer to the character string to be converted
// lpwszStr: [out] Pointer to a buffer that receives the translated string.
// dwSize: [in] Size of the buffer
//
//Return Values:
// TRUE: Succeed
// FALSE: Failed
//
//Example:
// MByteToWChar(szA,szW,sizeof(szW)/sizeof(szW[0]));
//---------------------------------------------------------------------------------------
BOOL MByteToWChar(LPCSTR lpcszStr, LPWSTR lpwszStr, DWORD dwSize)
{
    // Get the required size of the buffer that receives the Unicode
    // string.
    DWORD dwMinSize;
    dwMinSize = MultiByteToWideChar (CP_ACP, 0, lpcszStr, -1, NULL, 0);

    if(dwSize < dwMinSize)
    {
     return FALSE;
    }


    // Convert headers from ASCII to Unicode.
    MultiByteToWideChar (CP_ACP, 0, lpcszStr, -1, lpwszStr, dwMinSize);
    return TRUE;
}

//-------------------------------------------------------------------------------------
//Description:
// This function maps a wide-character string to a new character string
//
//Parameters:
// lpcwszStr: [in] Pointer to the character string to be converted
// lpszStr: [out] Pointer to a buffer that receives the translated string.
// dwSize: [in] Size of the buffer
//
//Return Values:
// TRUE: Succeed
// FALSE: Failed
//
//Example:
// MByteToWChar(szW,szA,sizeof(szA)/sizeof(szA[0]));
//---------------------------------------------------------------------------------------
BOOL WCharToMByte(LPCWSTR lpcwszStr, LPSTR lpszStr, DWORD dwSize)
{
   DWORD dwMinSize;
   dwMinSize = WideCharToMultiByte(CP_OEMCP,NULL,lpcwszStr,-1,NULL,0,NULL,FALSE);
   if(dwSize < dwMinSize)
   {
    return FALSE;
   }
   WideCharToMultiByte(CP_OEMCP,NULL,lpcwszStr,-1,lpszStr,dwSize,NULL,FALSE);
   return TRUE;
}

使用�Ҏ(gu��)��也很��?�C�Z��如下:
wchar_t wText[10] = {L"函数�C�Z��"};
char sText[20]= {0};
WCharToMByte(wText,sText,sizeof(sText)/sizeof(sText[0]));
MByteToWChar(sText,wText,sizeof(wText)/sizeof(wText[0]));

�q�两个函数的�~�点在于无法动态分配内�?在�{换很长的字符串时可能�?x��)浪费较多内存空�?优点�?在不考虑��费�I�间的情况下转换较短字符串非常方�?

2.MultiByteToWideChar()函数��q��的问�?br>
有的朋友可能已经发现,在标准的WinCE4.2或WinCE5.0 SDK模拟器下,�q�个函数都无法正常工�?其�{换之后的字符全是��q��.�?qi��ng)时更改MultiByteToWideChar()参数也依然如�?
不过�q�个不是代码问题,其结症在于所定制的操作系�l?如果我们定制的操作系�l�默认语�a�不是中文,也会(x��)出现�q�种情况.�׃��标准的SDK默认语言��?所以肯定会(x��)出现�q�个问题.而这个问题的解决,不能在简单地更改控制面板�?区域选项"�?默认语言",而是要在�pȝ��定制的时�?选择默认语言�?中文".
�pȝ��定制旉��择默认语言的位�|�于:
Platform -> Setting... -> locale -> default language ,选择"中文",然后�~�译卛_��.

宋鹏 2007-04-02 10:18 发表评论

7数据�?在EVC 的EMULATOR上调试通过)Version2

宋鹏 — Thu, 29 Mar 2007 06:22:00 GMT

//SP-A1.创徏或打开数据库卷
CEGUID m_ceguid; //4个DWORD的数据组成的�l�构体，用来标识数据库文件位�|?br />// PCEGUID pguid;
if(!CeMountDBVol(&m_ceguid,  //数据库文件位�|?br />     L"DB",   //数据��L(f��ng)��名称
     OPEN_ALWAYS)) //操作标志
{
  MessageBox(_T("Open Or Create DBVol Fail!"));
}
else
{
  MessageBox(_T("Open Or Create DBVol Success!"));
}

/*
//SP-A2.枚�D已装在的数据库卷
CEGUID guid;
TCHAR szVolume[10];
TCHAR szVolumef[10];
int nCnt = 0;

CREATE_INVALIDGUID(&guid);
while(CeEnumDBVolumes(&guid,szVolume,sizeof(szVolume)))
{
  nCnt++;
  wsprintf(szVolumef,TEXT("Mounted Vol is %s"),szVolume); //格式化输�?br />  MessageBox(szVolumef); //弹出所有已装蝲数据库的名字
}

  //2.弹出已装载数据库的数量nCnt
TCHAR temp[20];
TCHAR tempf[20];

_itow(nCnt,temp,10); //��i转换为字�W�串攑օ�temp�?最后一个数字表�C�十�q�制
wsprintf(tempf,TEXT("The Number of Mounted Vol is %s"),temp);
MessageBox(tempf);

//SP-A3.卸蝲数据库卷�Q��ƈ重新弹出所有已装蝲数据库的名字�?qi��ng)数�?br /> CEGUID guid1;
TCHAR szVolume1[10];
int nCnt1 = 0;

CREATE_INVALIDGUID(&guid1);
CeUnmountDBVol(&m_ceguid);
while(CeEnumDBVolumes(&guid1,szVolume1,sizeof(szVolume1)))
{
  nCnt1++;
  MessageBox(szVolume1); //弹出所有已装蝲数据库的名字
}
TCHAR temp1[10];
_itow(nCnt1,temp1,10); //��i转换为字�W�串攑օ�temp�?最后一个数字表�C�十�q�制
MessageBox(temp1);
*/

/**/
//SP-A4.创徏数据�?/p>
// #define PID_PASSWORD       MAKELONG (CEVT_LPWSTR, 1)
HANDLE m_hdb=0;        //�q�回的已打开数据库的句柄
CEOID m_ceoid=0;       //typedef DWORD CEOID;

TCHAR DBTABLENAME[20] = _T("myDB");

//1.打开数据库，�q�检查返回�?br /> m_hdb = CeOpenDatabaseEx(&m_ceguid,   //数据库卷的位�|?br />       &m_ceoid,   //通过名称引用数据库，所以将CEOID��D��?
       DBTABLENAME,  //数据库名�U?br />       NULL,    //
       CEDB_AUTOINCREMENT, //��d��一个记录后�Q�数据库指针自增
       NULL);    //控制发送数据库变化消息的方�?/p>
    if (m_hdb == INVALID_HANDLE_VALUE)
{
  int rc;
        rc = GetLastError();

  TCHAR temp1[10];
  _itow(rc,temp1,10);
  MessageBox(temp1);

  //2.如果没有该数据库�Q�则创徏个新�?br />        if (rc == ERROR_FILE_NOT_FOUND)
  {
   //2.1填写数据库信�?br />   CEDBASEINFO cedbaseinfo;   //数据库信息的�l�构�?br />   cedbaseinfo.dwFlags = CEDB_VALIDNAME
        | CEDB_VALIDTYPE
        | CEDB_VALIDSORTSPEC; //修徏数据库中要用到的�c�d��
   wcscpy(cedbaseinfo.szDbaseName,DBTABLENAME);
   cedbaseinfo.dwDbaseType = 0;
   cedbaseinfo.wNumSortOrder = 1 ;
   cedbaseinfo.rgSortSpecs[0].propid = PID_PASSWORD;
   cedbaseinfo.rgSortSpecs[0].dwFlags = CEDB_SORT_CASEINSENSITIVE;
   //2.2创徏数据�?br />   m_ceoid = CeCreateDatabaseEx(&m_ceguid,&cedbaseinfo);
   if(m_ceoid==0)
   {
    MessageBox(TEXT("fail"));
   }
   else
   {
    //3创徏后打开数据�?br />    m_hdb = CeOpenDatabaseEx(&m_ceguid,
          &m_ceoid,
          DBTABLENAME,
          NULL,
          CEDB_AUTOINCREMENT,
          NULL);
    MessageBox(TEXT("build Database success"));

    //3.1.打开数据库错误判�?br />    if(INVALID_HANDLE_VALUE == m_hdb)
    {
     rc = GetLastError();
     switch(rc)
     {
      case ERROR_INVALID_PARAMETER:
      MessageBox(L"ERROR_INVALID_PARAMETER");
      break;

      case ERROR_FILE_NOT_FOUND:
      MessageBox(L"ERROR_FILE_NOT_FOUND");
      break;

      case ERROR_NOT_ENOUGH_MEMORY:
      MessageBox(L"ERROR_NOT_ENOUGH_MEMORY");
      break;

      default :
      MessageBox(L"Database Opened");
      break;
     }
    }
   }
  }
  else //1.1打开数据库错误判�?br />  {
   switch(rc)
   {
    case ERROR_INVALID_PARAMETER:
    MessageBox(L"ERROR_INVALID_PARAMETER");
    break;

    case ERROR_FILE_NOT_FOUND:
    MessageBox(L"ERROR_FILE_NOT_FOUND");
    break;

    case ERROR_NOT_ENOUGH_MEMORY:
    MessageBox(L"ERROR_NOT_ENOUGH_MEMORY");
    break;

    default :
    MessageBox(L"Database Opened");
    break;
   }
  }
}

//SP-A5.查找(搜烦(ch��))记录
DWORD dwIndex;        //索引
CEOID oid;         //CEOID是DWORD
   /*
    @type CEOID | Unique identifier for all WINCE objects
    @comm Every WINCE object can be efficiently referred to by its OID. OID's are unique
     in the system and are not reused
   */

oid = CeSeekDatabase(m_hdb,     //已打开数据库的句柄
      CEDB_SEEK_BEGINNING, //查找数据库的�W�n个记�?br />      0,      //n�?br />      &dwIndex);    // receives the index from the start of the database to the beginning of the record that was found. This parameter can be NULL.

if(0 == oid)
{
  MessageBox(L"there is no first item in the database!");
  ///insert record

  CEPROPVAL * pRorps;
  pRorps = new CEPROPVAL;

  //
  memset(pRorps,0,LocalSize(pRorps));
  pRorps->propid = PID_PASSWORD;
  pRorps->val.lpwstr = TEXT("SONGPENG");

  oid =0;
  oid = CeWriteRecordProps(m_hdb,   //已打开数据库句�?br />        0,    //�?�Q�则创徏新记�?br />        1,    //属性ID�l�构数组中项目的数量
        pRorps);  //要记录的东东

  if (oid == 0)
  {
   MessageBox(TEXT("insert failues"));
  }
  else
  {
   MessageBox(TEXT("insert success"));
   oid = CeSeekDatabase(m_hdb,     //已打开数据库的句柄
      CEDB_SEEK_BEGINNING, //查找数据库的�W�n个记�?br />      0,      //n�?br />      &dwIndex);
   if(0 != oid)
   {
    MessageBox(L"first item found!");
   }
  }
}
else
{
  MessageBox(L"first item found!");
}

//SP-A6.��d��记录
WORD wProps;     //属性个�?br /> PBYTE pBuff;     //�~�冲�?br /> pBuff=0;
DWORD dwRecSize;    //�~�冲区大��?/p>
oid=CeReadRecordProps(m_hdb, //已打开数据库的句柄
CEDB_ALLOWREALLOC,    //函数可以扩大�~�冲区，以便容纳�q�回数据
&wProps,      //包含�?ji��n)rProgID指向的CEPROPID�l�构�?数量
NULL,       //一�ơ读取记录所有必��d��?br /> &(LPBYTE)pBuff,    //指向�~�冲区指针的指针
&dwRecSize);

if (oid == 0)
{
        TCHAR szTxt[64];
        INT rc = GetLastError();
        wsprintf (szTxt, TEXT ("Db item not read. rc = %d (%x)"),
                  rc, rc);
        MessageBox (szTxt);
}
else
{
  PCEPROPVAL pRecord;
  pRecord = (PCEPROPVAL)pBuff; //指向CEPROVAL数组
  TCHAR tmp[20];
  for(int i=0;i  {
   switch(pRecord->propid)
   {
   case PID_PASSWORD:
    lstrcpy(tmp,pRecord->val.lpwstr);
    break;
   default:
    break;
   }
   pRecord++;
  }
  MessageBox(tmp);
  LocalFree(pBuff);
}

//SP-A7.删除记录
oid = CeSeekDatabase(m_hdb,CEDB_SEEK_BEGINNING,0,NULL);
if( CeDeleteRecord(m_hdb,oid))
MessageBox(_T("DELE success"));

if(CloseHandle(m_hdb))
MessageBox(_T("close success"));

if(CeUnmountDBVol(&m_ceguid))
MessageBox(_T("unmount success"));

}

/*
//用到的结构体和联合体
typedef struct _CEPROPVAL {
CEPROPID propid; //属性ID
WORD wLenData;  //不用
WORD wFlags;  //标识
CEVALUNION val;  //属性��|��联合体）(j��)
} CEPROPVAL;
typedef CEPROPVAL *PCEPROPVAL;

typedef union _CEVALUNION {
short iVal;
USHORT uiVal;
long lVal;
ULONG ulVal;
FILETIME filetime;
LPWSTR lpwstr;  //字符串�Ş�?br />CEBLOB blob;
BOOL boolVal
double dblVal
} CEVALUNION;

typedef struct _CEDBASEINFO {
    DWORD    dwFlags;           //@field Indicates which fields are valid. Possible values are:
                                // @flag CEDB_VALIDNAME | The name field is valid and should be used
                                // @flag CEDB_VALIDTYPE | The type field is valid and should be used
                                // @flag CEDB_VALIDSORTSPEC | The sortspecs are valid and should be used
    WCHAR    szDbaseName[CEDB_MAXDBASENAMELEN]; //@field Name of Database. Max CEDB_MAXDBASENAMELEN characters.
    DWORD    dwDbaseType;       //@field A type ID for this database
    WORD     wNumRecords;       //@field Number of records in the database
    WORD     wNumSortOrder;     //@field Number of sort orders active in the database
                                // Maximum is CEDB_MAXSORTORDER.
    DWORD    dwSize;            //@field Size in bytes that this database is using
    FILETIME ftLastModified;    //@field Last time this database was modified
    SORTORDERSPEC rgSortSpecs[CEDB_MAXSORTORDER]; //@field Actual sort order descriptions.
                                // Only first wNumSortOrder of this array are valid.
} CEDBASEINFO, *PCEDBASEINFO;
*/

宋鹏 2007-03-29 14:22 发表评论

6Trace

宋鹏 — Wed, 28 Mar 2007 09:25:00 GMT

//在调试时�Q�会(x��)从output中输出TRACE信息
int x = 1;
int y = 16;
float z = 32.0;

TRACE( L"This is a TRACE statement\n" );

TRACE( L"The value of x is %d\n", x );

宋鹏 2007-03-28 17:25 发表评论

5TryCatch

宋鹏 — Wed, 28 Mar 2007 09:24:00 GMT
int a=1;
try
{
  if(NULL!=a)throw a;
}
catch(int)
{
  MessageBox(L"Catch Information \n NULL!=a");
}

宋鹏 2007-03-28 17:24 发表评论

CFile文�g��d��

宋鹏 — Wed, 28 Mar 2007 09:21:00 GMT

//SP-A1文�g写入�?qi��ng)读�?br /> //创徏文�g2
  CFile file;
  if(file.Open(L"test1.TXT",CFile::modeReadWrite))
  {
//   MessageBox(L"File Open Success");
  }
  else
  {
   file.Open(L"test1.TXT",CFile::modeCreate | CFile::modeReadWrite);
//   MessageBox(L"not exist to create");
  }

        //定义��d��~�冲�?br />  TCHAR buffer[]=L"a"; //4个字�?br />  TCHAR buffer_r[]=L"";
/*
  //SP-A2文�g写入
  file.Write(buffer,sizeof(buffer));
  file.Close(); //文�g用完必须关闭�Q�否则下�ơ无法操�?br />*/

/*
  //文�g长度
  DWORD dwBytesRemaining = file.GetLength();
  _itow(dwBytesRemaining,buffer_r,10);
*/

  //SP-A3文�g��d��,要读取，��p��把前面的写入��L��Q�否则会(x��)无法��d��
  file.Read(buffer_r,4);
  MessageBox(buffer_r);
  file.Close(); //文�g用完必须关闭�Q�否则下�ơ无法操�?br />/*
//写文本，��p�|
RECT rect;
    GetClientRect (&rect);

HDC hdc;
hdc = (HDC)GetDC();

ExtTextOut(hdc,0,0,0,NULL,L"aa",lstrlen(L"aa"),NULL);
*/

宋鹏 2007-03-28 17:21 发表评论

各种�c�d��转换Version2

宋鹏 — Wed, 28 Mar 2007 09:19:00 GMT

//SP-A1数字和文字的转换 by Format(CString)
/*
CString str;
int i=125;
str.Format(TEXT("%d"),i);
MessageBox(str);
*/
//SP-A2数字和文字的转换 BY _itow
//ANSI�?br />// int i1=135;
// CHAR temp1[10];
// _itoa(i1,temp1,10);
// MessageBox(temp);
/*
//UNICODE�?br /> int i2=135;
TCHAR temp2[10];
_itow(i2,temp2,10); //��i转换为字�W�串攑օ�temp�?最后一个数字表�C�十�q�制
MessageBox(temp2);
*/
int i=0x5555;
long l=0x66666666;
unsigned long ul=0xffffffff;

Show_Num(i);
// MessageBox(L"i");
Show_Num(l);
// MessageBox(L"l");
Show_Num(ul);
// MessageBox(L"ul");
}

//------------------------------
//变量昄��函数-i
//
void Show_Num(int i)
{
TCHAR temp[8];
_itow(i,temp,16); //��i转换为字�W�串攑օ�temp�?最后一个数字表�C�十�q�制
AfxMessageBox(temp);
// MessageBox(NULL,temp,NULL,MB_OK);
}

//------------------------------
//变量昄��函数-l
//
void Show_Num(long l)
{
TCHAR temp[16];
_itow(l,temp,16); //��i转换为字�W�串攑օ�temp�?最后一个数字表�C�十�q�制
AfxMessageBox(temp);
// MessageBox(NULL,temp,NULL,MB_OK);
}

//------------------------------
//变量昄��函数-ul
//
void Show_Num(unsigned long ul)
{
TCHAR temp[16];
_itow(ul,temp,16); //��i转换为字�W�串攑օ�temp�?最后一个数字表�C�十�q�制
AfxMessageBox(temp);
// MessageBox(NULL,temp,NULL,MB_OK);
}

宋鹏 2007-03-28 17:19 发表评论

宋鹏 — Wed, 28 Mar 2007 09:16:00 GMT

//SP-A1用CFile来创建文�?br /> CFile file;
if(file.Open(L"test1.TXT",CFile::modeReadWrite))
{
  MessageBox(L"Open File OK");
}
else
{
  file.Open(L"test1.TXT",CFile::modeCreate | CFile::modeReadWrite);
  MessageBox(L"File not exist to create");
}

/*
  //SP-A2创徏文�g2用CreateFile创徏文�g
  HANDLE g_hFile = 0;                  // Handle to the opened file
  g_hFile = CreateFile(L"test.txt",GENERIC_READ | GENERIC_WRITE,
                          FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,OPEN_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL);
*/

宋鹏 2007-03-28 17:16 发表评论

MessageBox

宋鹏 — Wed, 28 Mar 2007 08:50:00 GMT
CWnd �c�M��
MessageBox(L"MessageBox test");

宋鹏 2007-03-28 16:50 发表评论