MFC-3文档视图架构

 

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#include <afxwin.h>

#include "resource.h"

 

class MyDocument : public CDocument

{

    DECLARE_DYNCREATE(MyDocument)//声明run-time类

};

 

IMPLEMENT_DYNCREATE(MyDocument,CDocument)//声明MyDocument为run-time类

 

class MyView : public CView

{

public:

    void OnDraw(CDC * aDC)//必须重载的虚函数

    {}

    DECLARE_DYNCREATE(MyView)//声明为run-time类

};

 

IMPLEMENT_DYNCREATE(MyView,CView)//声明MyView为run-time类

 

class MyFrame:public CFrameWnd

{

    DECLARE_DYNCREATE(MyFrame)//声明run-time类

};

 

IMPLEMENT_DYNCREATE(MyFrame,CFrameWnd)//声明MyFrame为run-time类

 

class MyApp:public CWinApp

{

public:

    BOOL InitInstance()

    {

        CDocument *doc;//指向文件的指针

        CSingleDocTemplate * DocTemplate;//文件指向单文档模板对象的指针

        DocTemplate = new CSingleDocTemplate(

            IDR_MENU1,//用于单文档框架之资源标志符

            RUNTIME_CLASS(MyDocument),//单文档窗口的Document类

            RUNTIME_CLASS(MyFrame),//单文档窗口的窗口框架类

            RUNTIME_CLASS(MyView)//单文档窗口的View类

            );//建立单文档模板对象

 

        AddDocTemplate(DocTemplate);//将单文档模板对象设置给MyApp;

 

        doc = DocTemplate->CreateNewDocument();//建立一个新的文档

 

        m_pMainWnd = DocTemplate->CreateNewFrame(doc,NULL);//建立一个窗口框架

 

        DocTemplate->InitialUpdateFrame((CFrameWnd*)m_pMainWnd,doc);//初始化窗口框架并连接view

 

        m_pMainWnd->ShowWindow(SW_SHOW);//显示窗口

        return true;

    }

} a_app;//建立应用程序对象