绘图基础--多边形2
绘图基础--多边形2
// polygon2.cpp#include <afxwin.h>// Define the application classclass CApp : public CWinApp{public:virtual BOOL InitInstance();};CApp App; // define the window classclass CWindow : public CFrameWnd{ public:CWindow(); void OnPaint();DECLARE_MESSAGE_MAP()};// The window's constructorCWindow::CWindow(){ Create(NULL, "Drawing Tests",WS_OVERLAPPEDWINDOW,CRect(0,0,350,300)); }// The message mapBEGIN_MESSAGE_MAP( CWindow, CFrameWnd )ON_WM_PAINT()END_MESSAGE_MAP()// Handle exposurevoid CWindow::OnPaint(){CPaintDC dc(this);// Change the pen and the brushCPen pen(PS_SOLID, 2, RGB(0,0,255)), *oldPen;CBrush brush(RGB(255,0,0)), *oldBrush;oldPen = dc.SelectObject(&pen);oldBrush = dc.SelectObject(&brush);// Create the polygonCPoint a[10];a[0] = CPoint(100,100);a[1] = CPoint(250,100);a[2] = CPoint(110,180); a[3] = CPoint(180,30);a[4] = CPoint(260,180); dc.SetPolyFillMode(ALTERNATE);dc.Polygon(a, 5);// return old pen and brushdc.SelectObject(oldPen);dc.SelectObject(oldBrush);}// Init the applicationBOOL CApp::InitInstance(){m_pMainWnd = new CWindow();m_pMainWnd->ShowWindow(m_nCmdShow);m_pMainWnd->UpdateWindow();return TRUE;}