cfiledialog没有定义1st1标识符
在CFiledialog中重载OnInitDialog希望获取Listctrl控件来设置其显示方式为大图标。
但是提示说没有定义这个1st1标识符

C/C++ code

BOOL CMyFileSel::OnInitDialog(){    CFileDialog::OnInitDialog();    CWnd* pWnd = GetDlgItem(lst1);    if(pWnd)        BOOL flag = pWnd->ModifyStyle(LVS_TYPEMASK, LVS_ICON & LVS_TYPEMASK);    return TRUE;}

error C2065: “lst1”: 未声明的标识符

[解决办法]
要把Hook打开

[解决办法]
初始化时：
CFileDialog fd(TRUE);
fd.m_ofn.lpstrTitle="Down Load File";
fd.m_ofn.lpstrInitialDir=strcat(drive,dir);
fd.m_ofn.lpstrFile=strcat(fname,ext);
fd.m_ofn.lpstrFilter="Any file(*.*)\0*.*\0ARC file (*.arc)\0*.arc\0BMP file (*.bmp)\0*.bmp\0DLL file (*.dll)\0*.dll\0";
if (stricmp(ext,".arc")==0) fd.m_ofn.nFilterIndex=2;
else if (stricmp(ext,".bmp")==0) fd.m_ofn.nFilterIndex=3;
else if (stricmp(ext,".dll")==0) fd.m_ofn.nFilterIndex=4;
else fd.m_ofn.nFilterIndex=1;
fd.m_ofn.Flags|=OFN_FILEMUSTEXIST;
fd.m_ofn.Flags|=OFN_ALLOWMULTISELECT;// must
fd.m_ofn.Flags|=OFN_EXPLORER; // default by Afx
//fd.m_ofn.Flags|=OFN_ENABLEHOOK;// default by Afx
fd.m_ofn.lpfnHook=DNHookProc;//="_AfxCommDlgProc" see"dlgcomm.cpp" <>NULL!

hook程序如下：

C/C++ code

///////////////////////////////////////////////////////// for CFileDialog down load // in debug version there is an error : ASSERT(m_p...==NULL)UINT CALLBACK DNHookProc(HWND hDlg,UINT uMsg,WPARAM wPar,LPARAM lPar){ // hdlg is a child     HWND hWndParent;    CWinApp        *pApp=AfxGetApp();    HICON        hIcon;        HWND        hw; // SHELLDll_defView    HWND        hcw;// SysListView32    DWORD       dwStyle;//    if (hDlg == NULL) return 0;// from "_AfxCommDlgProc()" of the file "dlgcomm.cpp"    _AFX_THREAD_STATE* pThreadState = AfxGetThreadState();    if (pThreadState->m_pAlternateWndInit != NULL)// not         pThreadState->m_pAlternateWndInit->SubclassWindow(hWnd);            pThreadState->m_pAlternateWndInit = NULL;//    hWndParent=GetParent(hDlg);// needed   switch (uMsg)   {      case WM_INITDIALOG:        hIcon=pApp->LoadIcon(IDI_ICONDN);        SendMessage(hWndParent,WM_SETICON,(WPARAM)0,(LPARAM)hIcon);// Note that LoadIcon does not require a subsequent DestroyIcon in Win32         DestroyIcon(hIcon);      break;      case WM_NOTIFY:        LPOFNOTIFY lpon=(LPOFNOTIFY)lPar;         UINT Notify=lpon->hdr.code;        if (Notify==CDN_TYPECHANGE ||            Notify==CDN_SELCHANGE  )        { // after window shown            hw=GetDlgItem(hWndParent,0x0461);// SHELLDll_defView            hcw=GetDlgItem(hw,1);// SysListView32            dwStyle=GetWindowLong(hcw,GWL_STYLE);//    change multi-selection of ListView            if (lpon->lpOFN->nFilterIndex==4) // "dll"            {                dwStyle &= ~LVS_SINGLESEL;// Multi            }            else            {                dwStyle |= LVS_SINGLESEL;// Single            }            SetWindowLong(hcw,GWL_STYLE,dwStyle);        }        if (Notify==CDN_FOLDERCHANGE)        {            HWND hLv=GetDlgItem(hWndParent,0x0461);//lst1             if(hLv) SendMessage(hLv,WM_COMMAND,0x7029,0);//ODM_WIEW_ICONS        }      break;   }   return 0;}