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1、实验四MFC图形绘制编程实验一、实验目的(1)熟悉VisualC++6.0开发环境;(2)掌握MFC消息映射的操作少骤；(2)掌握MFC图形输出的方法；(3)理解设备环境、画笔、画刷的概念，掌掘常用的绘图函数。二、实验内容请编写程序，要求如卜：(1)定义一支黄色M笔，绘制一条线段；(1)定义一支紫色画笔，绘制一条多段线；(3)定义一支红色画笔，绘制一个正方形，并用适当的画刷填充罔形内部；(4)定义一支绿色画笔，绘制一个圆，并用适当的画刷填充图形内部；(5)定义-支蓝色岡笔，绘制一个正六边形，丼川适当的両刷填充图形内部,三、实验报告
2、1.列出图形绘制程序代码清单：(1)在头文件Demo.h中：#include"afxwin.h"classCDemoWnd:publicCFrameWnd{public:CDcmoWnd();〜CDemoWnd();public:LRESULTOnPaint(WPARAMwParam，LPARAMIParam);DECLARE_MESSAGE_MAP()public:intm_nX0;intm_nY0;intm_nX1;intm_nY1;}；classCDemoApp:publicCWinApp{public:BOOLInitln
3、stance();};CDemoAppThisApp;(2)在源文件Demo.cpp屮:includeutpdl.hMCDemoWnd::CDemoWnd()m_nX0=0;m_nYO=0;m_nXl=0;m_nY1=0;}CDemoWnd::〜CDemoWnd(){}BEGIN_MESSAGE一MAP(CDemoWnd，CFrameWnd)ON_MESSAGE(WM_PAINT,OnPaint)END_MESSAGE_MAP()LRESULTCDemoWnd::OnPaint(WFARAMwParam,LPARAMIParam)
4、{CPaintDCdc(this);CPenPenI，*p01dPen1;Pen1.CreatePen(PS_SOLID，l0，RGB(255,255,0));pOldPen1=dc.SelectObject(&Pen1);dc.SclcctObjcct(&Pcn1);dc.MoveTo(10,10);dc.LineTo(lOOJOO);CPenPen2,*pOldPen2;Pen2.CreatePen(PS_SOLID,4,RGB(255,0,255));pOldPen2=dc.SelectObject(&Pen2);dc.Se
5、lectObject(&Pen2);POINTptl[]={{100,10},{10,180},{200,150}};dc.Polyline(ptl，3);CPenPen3，*pOldPen3;dc.SelectStockObject(BLACK_BRUSH);Pen3.CreatePen(PS_SOLID,4,RGB(255,0,0));pOldPen3=dc.SelectObject(&Pen3);dc.SclcctObjcct(&Pcn3);dc.Rectangle(300,50,400,150);CPenPen4，*pOl
6、dPen4;dc.SelectStockObject(GRAY_BRUSH);Pcn4.CrcatcPcn(PS_SOLID,4,RGB(0,255,0));pOldPen4=dc.SelectObject(&Pen4);dc.SelectObject(&Pen4);dc.Ellipse(500,200,700,400);CPenPcn5,*pOldPcn5;Pen5.CreatePen(PS_SOLID,4,RGB(0,0,255));pOldPen5=dc.SelectObject(&Pen5);dc.SclcctStockO
7、bjcct(DKGRAY_BRUSH);dc.SelectObject(&Fen5);POINTpt2U={{250,250},{400,250},{475,379},{400,509},{250,509},{175,379}};dc.Polygon(pt2,6);return0;}BOOLCDemoApp::lnitlnstance(){CDemoWnd*pMainWnd=newCDemoWnd();pMainWnd->Create(NULL,uDemoMini-MFC");pMainWnd->ShowWindow(m_nCmd
8、Show);pMainWnd->UpdateWindow();m_pMainWnd=pMainWnd;returnTRUE;}2、程序运行结果：3、总结在MFC程序中绘制图形的基本操作步骤：(1)获取图形设备接U。图形设备接口(GDI)ft责系统与
