VC程序设计大作业之绘制矩形

/武汉轻工大学VC++程序设计大作业鼠标点击绘制矩形 院系电气和电子工程学院班级学号1204姓名日期2013.11.221题目编写MFC下的单文档程序，通过鼠标点击选择两个点，作为矩形左上角、右下角，然后绘制矩形。（对应12题）2思路首先点击鼠标，选中左上角，然后拖动鼠标，在右下角拿起，这样矩形就就可以实现了。3程序实现过程首先建立MFC单文档程序然后建立类向导添加鼠标事务添加CPoint成员变量m_OrigPoint4关键代码//RectangleView.cpp:implementationoftheCRectangleViewclass//#include"stdafx.h"#include"Rectangle.h"#include"RectangleDoc.h"#include"RectangleView.h"#ifdef_DEBUG#definenewDEBUG_NEW#undefTHIS_FILEstaticcharTHIS_FILE[]=__FILE__;#endif///////////////////////////////////////////////////////////////////////////////CRectangleViewIMPLEMENT_DYNCREATE(CRectangleView,CView)BEGIN_MESSAGE_MAP(CRectangleView,CView) //{{AFX_MSG_MAP(CRectangleView) ON_WM_LBUTTONDOWN() ON_WM_LBUTTONUP() //}}AFX_MSG_MAP //Standardprintingcommands 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()///////////////////////////////////////////////////////////////////////////////CRectangleViewconstruction/destructionCRectangleView::CRectangleView(){ //TODO:addconstructioncodehere}CRectangleView::~CRectangleView(){}BOOLCRectangleView::PreCreateWindow(CREATESTRUCT&cs){ //TODO:ModifytheWindowclassorstylesherebymodifying //theCREATESTRUCTcs returnCView::PreCreateWindow(cs);}///////////////////////////////////////////////////////////////////////////////CRectangleViewdrawingvoidCRectangleView::OnDraw(CDC*pDC){ CRectangleDoc*pDoc=GetDocument(); ASSERT_VALID(pDoc); //TODO:adddrawcodefornativedatahere}///////////////////////////////////////////////////////////////////////////////CRectangleViewprintingBOOLCRectangleView::OnPreparePrinting(CPrintInfo*pInfo){ //defaultpreparation returnDoPreparePrinting(pInfo);}voidCRectangleView::OnBeginPrinting(CDC*/*pDC*/,CPrintInfo*/*pInfo*/){ //TODO:addextrainitializationbeforeprinting}voidCRectangleView::OnEndPrinting(CDC*/*pDC*/,CPrintInfo*/*pInfo*/){ //TODO:addcleanupafterprinting}///////////////////////////////////////////////////////////////////////////////CRectangleViewdiagnostics#ifdef_DEBUGvoidCRectangleView::AssertValid()const{ CView::AssertValid();}voidCRectangleView::Dump(CDumpContext&dc)const{ CView::Dump(dc);}CRectangleDoc*CRectangleView::GetDocument()//non-debugversionisinline{ ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CRectangleDoc))); return(CRectangleDoc*)m_pDocument;}#endif//_DEBUG///////////////////////////////////////////////////////////////////////////////CRectangleViewmessagehandlersvoidCRectangleView::OnLButtonDown(UINTnFlags,CPointpoint){ //TODO:Addyourmessagehandlercodehereand/orcalldefault this->m_OrigPoint=point; CView::OnLButtonDown(nFlags,point);}voidCRectangleView::OnLButtonUp(UINTnFlags,CPointpoint){ //TODO:Addyourmessagehandlercodehereand/orcalldefault CClientDCdc(this);dc.Rectangle(CRect(m_OrigPoint,point)); CView::OnLButtonUp(nFlags,point);}5输入输出状况及截图6总结体会通过前期对VC++的学习和这次大作业，我对VC++有了进一步的相识，而且熟识了如何建立单文档程序，多文档等程序，对VisualC+