经验总结

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MFC 学习笔记( 七 )

生活百科MFC 学习笔记

对象关系图：

MFC 学习笔记

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MFC 学习笔记

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MFC 学习笔记

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窗口切分：
MFC 学习笔记

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代码：
#include <afxwin.h>#include <afxext.h>#include "resource.h"class CMyDoc : public CDocument{};class CMyView : public CView{ DECLARE_DYNCREATE( CMyView ) //动态创建机制 DECLARE_MESSAGE_MAP( )public: virtual void OnDraw(CDC* pDC); afx_msg int OnCreate( LPCREATESTRUCT pcs );};IMPLEMENT_DYNCREATE( CMyView, CView )BEGIN_MESSAGE_MAP( CMyView, CView) ON_WM_CREATE( )END_MESSAGE_MAP()int CMyView::OnCreate( LPCREATESTRUCT pcs ){ return CView::OnCreate( pcs ); //将文档类对象和视图类对象建立关联关系 。}void CMyView::OnDraw( CDC* pDC ){ pDC->TextOut( 100, 100, "我是视图窗口" );}class CMyFrameWnd : public CFrameWnd{ DECLARE_MESSAGE_MAP( )public: afx_msg int OnCreate( LPCREATESTRUCT pcs ); afx_msg void OnPaint( ); virtual BOOL OnCreateClient( LPCREATESTRUCT pcs, CCreateContext* pContext); CSplitterWnd split;//不规则框架窗口};BEGIN_MESSAGE_MAP( CMyFrameWnd, CFrameWnd ) ON_WM_PAINT( ) ON_WM_CREATE( )END_MESSAGE_MAP( )BOOL CMyFrameWnd::OnCreateClient( LPCREATESTRUCT pcs, CCreateContext* pContext ){ //创建两个视图窗口 split.CreateStatic( this, 1, 2 );//创建倒日型框架 split.CreateView( 0, 0, RUNTIME_CLASS(CMyView), CSize(100,100), pContext ); split.CreateView( 0, 1, pContext->m_pNewViewClass, CSize(100,100), pContext ); return TRUE;}void CMyFrameWnd::OnPaint( ){ PAINTSTRUCT ps = { 0 }; HDC hdc = ::BeginPaint( this->m_hWnd, &ps ); ::TextOut( hdc, 200, 200, "我是框架窗口客户区", strlen("我是框架窗口客户区")); ::EndPaint( this->m_hWnd, &ps );}int CMyFrameWnd::OnCreate( LPCREATESTRUCT pcs ){ return CFrameWnd::OnCreate( pcs );//动态创建视图类对象，并创建视图窗口}class CMyWinApp : public CWinApp{public: virtual BOOL InitInstance( );};BOOL CMyWinApp::InitInstance( ){ CMyFrameWnd* pFrame = new CMyFrameWnd; CMyDoc* pDoc = new CMyDoc; CCreateContext cct; cct.m_pCurrentDoc = pDoc;//文档类对象地址 cct.m_pNewViewClass = RUNTIME_CLASS(CMyView);//&CMyView::classCMyView pFrame->LoadFrame( IDR_MENU1, WS_OVERLAPPEDWINDOW, NULL,&cct); m_pMainWnd = pFrame; pFrame->ShowWindow( SW_SHOW ); pFrame->UpdateWindow( ); return TRUE;}CMyWinApp theApp;命令消息处理顺序：
MFC 学习笔记

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MFC 学习笔记

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代码：
//WM_COMMAND消息的路线OnCommand(wParam, lParam)//函数内部this为pFrame{CWnd::OnCommand(..)//函数内部this为pFrame{OnCmdMsg(...)//函数内部this为pFrame*****CFrameWnd::OnCmdMsg 起点{CView* pView = GetActiveView()//函数内部this为pFrame{return this->m_pViewActive;//活动视图窗口对象地址}对象pView->OnCmdMsg(..) ===>终点 CCmdTarget::OnCmdMsg 此函数内部this为pViewm_pDocument->OnCmdMsg(.)==>终点CCmdTarget::OnCmdMsg 此函数内部this为文档类对象CWnd::OnCmdMsg(..)==>终点 CCmdTarget::OnCmdMsg 此函数内部this为pFrameCWinApp* pApp = AfxGetApp();//获取&theApppApp->OnCmdMsg(..)==>终点 CCmdTarget::OnCmdMsg 此函数内部this为&theApp}}}文档类和视图类关系：
MFC 学习笔记

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MFC 学习笔记

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代码：
#include <afxwin.h>#include <afxext.h>#include "resource.h"class CMyDoc : public CDocument{ DECLARE_MESSAGE_MAP( )public: afx_msg void OnNew( ); CString str;};BEGIN_MESSAGE_MAP( CMyDoc, CDocument ) ON_COMMAND( ID_NEW, OnNew )END_MESSAGE_MAP( )void CMyDoc::OnNew( ){ this->str = "hello world"; //接受到的数据 。// this->UpdateAllViews( NULL );//刷新和这个文档类对象（this）关联的所有视图窗口 //this->m_viewList; POSITION pos = this->GetFirstViewPosition(); //GetFirstXXXPosition CView* pView = this->GetNextView(pos);//GetNextXXX this->UpdateAllViews( pView );//刷新和这个文档类对象（this）关联的除了pView指向的视图窗口}class CMyView : public CView{ DECLARE_DYNCREATE( CMyView ) //动态创建机制 DECLARE_MESSAGE_MAP( )public: virtual void OnDraw(CDC* pDC); afx_msg int OnCreate( LPCREATESTRUCT pcs ); afx_msg void OnNew( );};IMPLEMENT_DYNCREATE( CMyView, CView )BEGIN_MESSAGE_MAP( CMyView, CView)// ON_COMMAND( ID_NEW, OnNew ) ON_WM_CREATE( )END_MESSAGE_MAP()void CMyView::OnNew( ){ AfxMessageBox( "视图类处理的WM_COMMAND消息" );}int CMyView::OnCreate( LPCREATESTRUCT pcs ){ return CView::OnCreate( pcs ); //将文档类对象和视图类对象建立关联关系 。}void CMyView::OnDraw( CDC* pDC ){// CMyDoc* pDoc = (CMyDoc*)this->m_pDocument; CMyDoc* pDoc = (CMyDoc*)this->GetDocument( ); pDC->TextOut( 100, 100, pDoc->str );}class CMyFrameWnd : public CFrameWnd{ DECLARE_MESSAGE_MAP( )public: afx_msg int OnCreate( LPCREATESTRUCT pcs ); afx_msg void OnPaint( ); virtual BOOL OnCreateClient( LPCREATESTRUCT pcs, CCreateContext* pContext); CSplitterWnd split;//不规则框架窗口 afx_msg void OnNew( );};BEGIN_MESSAGE_MAP( CMyFrameWnd, CFrameWnd )// ON_COMMAND( ID_NEW, OnNew) ON_WM_PAINT( ) ON_WM_CREATE( )END_MESSAGE_MAP( )void CMyFrameWnd::OnNew( ){ AfxMessageBox( "框架类处理了新建被点击" );}BOOL CMyFrameWnd::OnCreateClient( LPCREATESTRUCT pcs, CCreateContext* pContext ){ //创建两个视图窗口 split.CreateStatic( this, 1, 2 ); split.CreateView( 0, 0, RUNTIME_CLASS(CMyView), CSize(100,100), pContext ); split.CreateView( 0, 1, pContext->m_pNewViewClass, CSize(100,100), pContext ); m_pViewActive = (CView*)split.GetPane(0,0); return TRUE;}void CMyFrameWnd::OnPaint( ){ PAINTSTRUCT ps = { 0 }; HDC hdc = ::BeginPaint( this->m_hWnd, &ps ); ::TextOut( hdc, 200, 200, "我是框架窗口客户区", strlen("我是框架窗口客户区")); ::EndPaint( this->m_hWnd, &ps );}int CMyFrameWnd::OnCreate( LPCREATESTRUCT pcs ){ return CFrameWnd::OnCreate( pcs );//动态创建视图类对象，并创建视图窗口}class CMyWinApp : public CWinApp{ DECLARE_MESSAGE_MAP( )public: virtual BOOL InitInstance( ); afx_msg void OnNew( );};BEGIN_MESSAGE_MAP( CMyWinApp, CWinApp )// ON_COMMAND( ID_NEW, OnNew )END_MESSAGE_MAP( )void CMyWinApp::OnNew( ){ AfxMessageBox( "应用程序类处理了WM_COMMAND消息" );}BOOL CMyWinApp::InitInstance( ){ CMyFrameWnd* pFrame = new CMyFrameWnd; CMyDoc* pDoc = new CMyDoc; CCreateContext cct; cct.m_pCurrentDoc = pDoc;//文档类对象地址 cct.m_pNewViewClass = RUNTIME_CLASS(CMyView);//&CMyView::classCMyView pFrame->LoadFrame( IDR_MENU1, WS_OVERLAPPEDWINDOW, NULL,&cct); m_pMainWnd = pFrame; pFrame->ShowWindow( SW_SHOW ); pFrame->UpdateWindow( ); return TRUE;}CMyWinApp theApp;

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