2 qq 33369995 qq_33369995 于 2016.01.24 02:03 提问

mfc中关于未声明的标识符的一个问题
c++

请问各位这个问题怎么解决?图片

5个回答

caozhy
caozhy   Ds   Rxr 2016.01.24 03:00
已采纳

// MFCApplication1.cpp : Defines the class behaviors for the application.
//

#include "stdafx.h"
#include "afxwinappex.h"
#include "afxdialogex.h"
#include "MFCApplication1.h"
#include "MainFrm.h"

#include "ChildFrm.h"
#include "MFCApplication1Doc.h"
#include "MFCApplication1View.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CMFCApplication1App

BEGIN_MESSAGE_MAP(CMFCApplication1App, CWinAppEx)
    ON_COMMAND(ID_APP_ABOUT, &CMFCApplication1App::OnAppAbout)
    // Standard file based document commands
    ON_COMMAND(ID_FILE_NEW, &CWinAppEx::OnFileNew)
    ON_COMMAND(ID_FILE_OPEN, &CWinAppEx::OnFileOpen)
    // Standard print setup command
    ON_COMMAND(ID_FILE_PRINT_SETUP, &CWinAppEx::OnFilePrintSetup)
END_MESSAGE_MAP()


// CMFCApplication1App construction

CMFCApplication1App::CMFCApplication1App()
{
    m_bHiColorIcons = TRUE;

    // support Restart Manager
    m_dwRestartManagerSupportFlags = AFX_RESTART_MANAGER_SUPPORT_ALL_ASPECTS;
#ifdef _MANAGED
    // If the application is built using Common Language Runtime support (/clr):
    //     1) This additional setting is needed for Restart Manager support to work properly.
    //     2) In your project, you must add a reference to System.Windows.Forms in order to build.
    System::Windows::Forms::Application::SetUnhandledExceptionMode(System::Windows::Forms::UnhandledExceptionMode::ThrowException);
#endif

    // TODO: replace application ID string below with unique ID string; recommended
    // format for string is CompanyName.ProductName.SubProduct.VersionInformation
    SetAppID(_T("MFCApplication1.AppID.NoVersion"));

    // TODO: add construction code here,
    // Place all significant initialization in InitInstance
}

// The one and only CMFCApplication1App object

CMFCApplication1App theApp;


// CMFCApplication1App initialization

BOOL CMFCApplication1App::InitInstance()
{
    // InitCommonControlsEx() is required on Windows XP if an application
    // manifest specifies use of ComCtl32.dll version 6 or later to enable
    // visual styles.  Otherwise, any window creation will fail.
    INITCOMMONCONTROLSEX InitCtrls;
    InitCtrls.dwSize = sizeof(InitCtrls);
    // Set this to include all the common control classes you want to use
    // in your application.
    InitCtrls.dwICC = ICC_WIN95_CLASSES;
    InitCommonControlsEx(&InitCtrls);

    CWinAppEx::InitInstance();


    // Initialize OLE libraries
    if (!AfxOleInit())
    {
        AfxMessageBox(IDP_OLE_INIT_FAILED);
        return FALSE;
    }

    AfxEnableControlContainer();

    EnableTaskbarInteraction();

    // AfxInitRichEdit2() is required to use RichEdit control   
    // AfxInitRichEdit2();

    // Standard initialization
    // If you are not using these features and wish to reduce the size
    // of your final executable, you should remove from the following
    // the specific initialization routines you do not need
    // Change the registry key under which our settings are stored
    // TODO: You should modify this string to be something appropriate
    // such as the name of your company or organization
    SetRegistryKey(_T("Local AppWizard-Generated Applications"));
    LoadStdProfileSettings(4);  // Load standard INI file options (including MRU)


    InitContextMenuManager();
    InitShellManager();

    InitKeyboardManager();

    InitTooltipManager();
    CMFCToolTipInfo ttParams;
    ttParams.m_bVislManagerTheme = TRUE;
    theApp.GetTooltipManager()->SetTooltipParams(AFX_TOOLTIP_TYPE_ALL,
        RUNTIME_CLASS(CMFCToolTipCtrl), &ttParams);

    // Register the application's document templates.  Document templates
    //  serve as the connection between documents, frame windows and views
    CMultiDocTemplate* pDocTemplate;
    pDocTemplate = new CMultiDocTemplate(IDR_MFCApplication1TYPE,
        RUNTIME_CLASS(CMFCApplication1Doc),
        RUNTIME_CLASS(CChildFrame), // custom MDI child frame
        RUNTIME_CLASS(CMFCApplication1View));
    if (!pDocTemplate)
        return FALSE;
    AddDocTemplate(pDocTemplate);

    // create main MDI Frame window
    CMainFrame* pMainFrame = new CMainFrame;
    if (!pMainFrame || !pMainFrame->LoadFrame(IDR_MAINFRAME))
    {
        delete pMainFrame;
        return FALSE;
    }
    m_pMainWnd = pMainFrame;


    // Parse command line for standard shell commands, DDE, file open
    CCommandLineInfo cmdInfo;
    ParseCommandLine(cmdInfo);



    // Dispatch commands specified on the command line.  Will return FALSE if
    // app was launched with /RegServer, /Register, /Unregserver or /Unregister.
    if (!ProcessShellCommand(cmdInfo))
        return FALSE;
    // The main window has been initialized, so show and update it
    pMainFrame->ShowWindow(m_nCmdShow);
    pMainFrame->UpdateWindow();

    return TRUE;
}

int CMFCApplication1App::ExitInstance()
{
    //TODO: handle additional resources you may have added
    AfxOleTerm(FALSE);

    return CWinAppEx::ExitInstance();
}

// CMFCApplication1App message handlers


// CAboutDlg dialog used for App About

class CAboutDlg : public CDialogEx
{
public:
    CAboutDlg();

// Dialog Data
    enum { IDD = IDD_ABOUTBOX };

protected:
    virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support

// Implementation
protected:
    DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialogEx(CAboutDlg::IDD)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
    CDialogEx::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialogEx)
END_MESSAGE_MAP()

// App command to run the dialog
void CMFCApplication1App::OnAppAbout()
{
    CAboutDlg aboutDlg;
    aboutDlg.DoModal();
}

// CMFCApplication1App customization load/save methods

void CMFCApplication1App::PreLoadState()
{
    BOOL bNameValid;
    CString strName;
    bNameValid = strName.LoadString(IDS_EDIT_MENU);
    ASSERT(bNameValid);
    GetContextMenuManager()->AddMenu(strName, IDR_POPUP_EDIT);
    bNameValid = strName.LoadString(IDS_EXPLORER);
    ASSERT(bNameValid);
    GetContextMenuManager()->AddMenu(strName, IDR_POPUP_EXPLORER);
}

void CMFCApplication1App::LoadCustomState()
{
}

void CMFCApplication1App::SaveCustomState()
{
}

// CMFCApplication1App message handlers



caozhy
caozhy   Ds   Rxr 2016.01.24 02:21

你这个是什么版本的VC++
CMFC开头的类是微软买下bcgsoft公司的一套控件,并且提供给vs2010以上的用户使用的。如果你版本太旧,就不好使。
另外,如果是从别的地方粘贴来的,检查下是不是缺少头文件。最好用向导创建一个。

qq_33369995
qq_33369995 这个是2015的,我并没有改动这个部分的代码,vs莫名其妙的就报错了,请问大神这个应该怎么办?
接近 2 年之前 回复
caozhy
caozhy   Ds   Rxr 2016.01.24 02:53

你的这代码哪里来的,别的地方写的,在你的电脑上打开,还是就是在你的电脑上创建的。你的vs有没有安装vc++桌面支持和mfc库。

qq_33369995
qq_33369995 之前的编的程序可以正常的运行。
接近 2 年之前 回复
qq_33369995
qq_33369995 这段代码是我在电脑上打开的
接近 2 年之前 回复
caozhy
caozhy   Ds   Rxr 2016.01.24 03:03

这是默认模板,你对照下,我这里通过编译图片说明

qq_33369995
qq_33369995 好的,谢谢你了。
接近 2 年之前 回复
John_ToStr
John_ToStr   Rxr 2016.01.24 20:20

很明显是没头文件嘛

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