将文档（框架）中的内容在视图中输出

于 2013-07-18 20:07:36 发布
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版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。
本文链接：https://blog.youkuaiyun.com/u010246458/article/details/9372229
本文详细介绍了使用MFC框架创建应用程序的过程，包括文档/视图架构的实现方式，重点讲解了文档类（CLishanDoc）和框架窗口类（CMainFrame）的定义与初始化过程，以及如何在视图类（CLishanView）中输出文档类中的字符串。
1.在Doc.h中定义一个字符串；
// lishanDoc.h : interface of the CLishanDoc class
//
/////////////////////////////////////////////////////////////////////////////

#if !defined(AFX_LISHANDOC_H__F80D13AF_615D_41CE_93BF_BCF811F0AEFF__INCLUDED_)
#define AFX_LISHANDOC_H__F80D13AF_615D_41CE_93BF_BCF811F0AEFF__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000


class CLishanDoc : public CDocument
{
protected: // create from serialization only
	CLishanDoc();
	DECLARE_DYNCREATE(CLishanDoc)

// Attributes
public:
   CString str;
// Operations
public:

// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CLishanDoc)
	public:
	virtual BOOL OnNewDocument();
	virtual void Serialize(CArchive& ar);
	//}}AFX_VIRTUAL

// Implementation
public:
	virtual ~CLishanDoc();
#ifdef _DEBUG
	virtual void AssertValid() const;
	virtual void Dump(CDumpContext& dc) const;
#endif

protected:

// Generated message map functions
protected:
	//{{AFX_MSG(CLishanDoc)
		// NOTE - the ClassWizard will add and remove member functions here.
		//    DO NOT EDIT what you see in these blocks of generated code !
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

/////////////////////////////////////////////////////////////////////////////

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_LISHANDOC_H__F80D13AF_615D_41CE_93BF_BCF811F0AEFF__INCLUDED_)
2.在Doc.cpp中对其初始化
// lishanDoc.cpp : implementation of the CLishanDoc class
//

#include "stdafx.h"
#include "lishan.h"

#include "lishanDoc.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CLishanDoc

IMPLEMENT_DYNCREATE(CLishanDoc, CDocument)

BEGIN_MESSAGE_MAP(CLishanDoc, CDocument)
	//{{AFX_MSG_MAP(CLishanDoc)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CLishanDoc construction/destruction

CLishanDoc::CLishanDoc()
{
	str="I want to go home";	// TODO: add one-time construction code here

}

CLishanDoc::~CLishanDoc()
{
}

BOOL CLishanDoc::OnNewDocument()
{
	if (!CDocument::OnNewDocument())
		return FALSE;

	// TODO: add reinitialization code here
	// (SDI documents will reuse this document)

	return TRUE;
}



/////////////////////////////////////////////////////////////////////////////
// CLishanDoc serialization

void CLishanDoc::Serialize(CArchive& ar)
{
	if (ar.IsStoring())
	{
		// TODO: add storing code here
	}
	else
	{
		// TODO: add loading code here
	}
}

/////////////////////////////////////////////////////////////////////////////
// CLishanDoc diagnostics

#ifdef _DEBUG
void CLishanDoc::AssertValid() const
{
	CDocument::AssertValid();
}

void CLishanDoc::Dump(CDumpContext& dc) const
{
	CDocument::Dump(dc);
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CLishanDoc commands
3.在视图中输出
// lishanView.cpp : implementation of the CLishanView class
//

#include "stdafx.h"
#include "lishan.h"
#include "lishanDoc.h"
#include "lishanView.h"
#include "MainFrm.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CLishanView

IMPLEMENT_DYNCREATE(CLishanView, CView)

BEGIN_MESSAGE_MAP(CLishanView, CView)
	//{{AFX_MSG_MAP(CLishanView)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CLishanView construction/destruction

CLishanView::CLishanView()
{
	// TODO: add construction code here

}

CLishanView::~CLishanView()
{
}

BOOL CLishanView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CLishanView drawing

void CLishanView::OnDraw(CDC* pDC)
{
	CLishanDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here

	//CWnd *pw=::AfxGetApp()->m_pMainWnd;
	//CMainFrame *pp=(CMainFrame*)pw;
	//pDC->TextOut(50,50,pp->str);------将框架内的内容在视图中输出
	pDC->TextOut(20,20,pDoc->str);
	
}


/////////////////////////////////////////////////////////////////////////////
// CLishanView printing

BOOL CLishanView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CLishanView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CLishanView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CLishanView diagnostics

#ifdef _DEBUG
void CLishanView::AssertValid() const
{
	CView::AssertValid();
}

void CLishanView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CLishanDoc* CLishanView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CLishanDoc)));
	return (CLishanDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
 //CLishanView message handlers
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

1.在Frm.h中定义：
// MainFrm.h : interface of the CMainFrame class
//
/////////////////////////////////////////////////////////////////////////////

#if !defined(AFX_MAINFRM_H__5C389D3B_5C80_436B_8ABE_C66FF7B0B0CD__INCLUDED_)
#define AFX_MAINFRM_H__5C389D3B_5C80_436B_8ABE_C66FF7B0B0CD__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

class CMainFrame : public CFrameWnd
{
	
protected: // create from serialization only
	CMainFrame();
	DECLARE_DYNCREATE(CMainFrame)

// Attributes
public:
	CString str;
// Operations
public:

// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CMainFrame)
	virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
	//}}AFX_VIRTUAL

// Implementation
public:
	virtual ~CMainFrame();
#ifdef _DEBUG
	virtual void AssertValid() const;
	virtual void Dump(CDumpContext& dc) const;
#endif

protected:  // control bar embedded members
	CStatusBar  m_wndStatusBar;
	CToolBar    m_wndToolBar;

// Generated message map functions
protected:
	//{{AFX_MSG(CMainFrame)
	afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
		// NOTE - the ClassWizard will add and remove member functions here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

/////////////////////////////////////////////////////////////////////////////

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_MAINFRM_H__5C389D3B_5C80_436B_8ABE_C66FF7B0B0CD__INCLUDED_)
2.在Frm.cpp中为其初始化：
// MainFrm.cpp : implementation of the CMainFrame class
//

#include "stdafx.h"
#include "lishan.h"
#include "MainFrm.h"
#include "MainFrm.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CMainFrame

IMPLEMENT_DYNCREATE(CMainFrame, CFrameWnd)

BEGIN_MESSAGE_MAP(CMainFrame, CFrameWnd)
	//{{AFX_MSG_MAP(CMainFrame)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code !
	ON_WM_CREATE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

static UINT indicators[] =
{
	ID_SEPARATOR,           // status line indicator
	ID_INDICATOR_CAPS,
	ID_INDICATOR_NUM,
	ID_INDICATOR_SCRL,
};

/////////////////////////////////////////////////////////////////////////////
// CMainFrame construction/destruction

CMainFrame::CMainFrame()
{
	// TODO: add member initialization code here
	str = "Hello World!";	
}

CMainFrame::~CMainFrame()
{
}

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CFrameWnd::OnCreate(lpCreateStruct) == -1)
		return -1;
	
	if (!m_wndToolBar.CreateEx(this, TBSTYLE_FLAT, WS_CHILD | WS_VISIBLE | CBRS_TOP
		| CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC) ||
		!m_wndToolBar.LoadToolBar(IDR_MAINFRAME))
	{
		TRACE0("Failed to create toolbar\n");
		return -1;      // fail to create
	}

	if (!m_wndStatusBar.Create(this) ||
		!m_wndStatusBar.SetIndicators(indicators,
		  sizeof(indicators)/sizeof(UINT)))
	{
		TRACE0("Failed to create status bar\n");
		return -1;      // fail to create
	}

	// TODO: Delete these three lines if you don't want the toolbar to
	//  be dockable
	m_wndToolBar.EnableDocking(CBRS_ALIGN_ANY);
	EnableDocking(CBRS_ALIGN_ANY);
	DockControlBar(&m_wndToolBar);

	return 0;
}

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
	if( !CFrameWnd::PreCreateWindow(cs) )
		return FALSE;
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return TRUE;
}

/////////////////////////////////////////////////////////////////////////////
// CMainFrame diagnostics

#ifdef _DEBUG
void CMainFrame::AssertValid() const
{
	CFrameWnd::AssertValid();
}

void CMainFrame::Dump(CDumpContext& dc) const
{
	CFrameWnd::Dump(dc);
}

#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMainFrame message handlers

3.在视图中输出：如上

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