>_<:这是个简单的MFC程序，有利于了解MFC的框架结构
>_<:Ruler.h
1 #include<afxwin.h> 2 class CMyApp:public CWinApp 3 { 4 public: 5 virtual BOOL InitInstance(); 6 }; 7 class CMainWindow:public CFrameWnd 8 { 9 public: 10 CMainWindow(); 11 protected: 12 afx_msg void OnPaint(); 13 DECLARE_MESSAGE_MAP(); 14 };
>_<:Ruler.cpp
1 #include<afxwin.h> 2 #include"Ruler.h" 3 CMyApp myApp; 4 ////////////////////////////////////////////// 5 //CMyApp member function 6 BOOL CMyApp::InitInstance() 7 { 8 m_pMainWnd=new CMainWindow; 9 m_pMainWnd->ShowWindow(m_nCmdShow); 10 m_pMainWnd->UpdateWindow(); 11 return TRUE; 12 } 13 ///////////////////////////////////////////// 14 //CMainWindow message map and member function 15 BEGIN_MESSAGE_MAP(CMainWindow,CFrameWnd) 16 ON_WM_PAINT() 17 END_MESSAGE_MAP() 18 19 CMainWindow::CMainWindow() 20 { 21 Create(NULL,_T("Ruler"),WS_OVERLAPPEDWINDOW|WS_HSCROLL|WS_VSCROLL); 22 } 23 24 void CMainWindow::OnPaint() 25 { 26 CPaintDC dc(this); 27 28 //屏幕初始化 29 dc.SetMapMode(MM_LOENGLISH);//0.01in ;1英寸映射 30 dc.SetTextAlign(TA_CENTER|TA_BOTTOM); 31 dc.SetBkMode(TRANSPARENT); 32 33 //画尺子主题 34 CBrush brush(RGB(255,255,0)); 35 CBrush* pOldBrush=dc.SelectObject(&brush); 36 dc.Rectangle(100,-100,1300,-200); 37 dc.SelectObject(pOldBrush); 38 39 //画刻度 40 for(int i=125;i<1300;i+=25){ 41 dc.MoveTo(i,-192); 42 dc.LineTo(i,-200); 43 } 44 for(int i=150;i<1300;i+=50){ 45 dc.MoveTo(i,-184); 46 dc.LineTo(i,-200); 47 } 48 for(int i=200;i<1300;i+=100){ 49 dc.MoveTo(i,-175); 50 dc.LineTo(i,-200); 51 52 CString string; 53 string.Format(_T("%d"),(i/100)-1); 54 dc.TextOutA(i,-175,string); 55 } 56 57 //商标 58 59 //CRect rect(125,-125,175,-150); 60 //CString string=_T("晨光"); 61 //dc.DrawText(string,&rect,DT_SINGLELINE|DT_CENTER|DT_VCENTER); 62 dc.SetTextColor(RGB(192,192,192)); 63 dc.TextOutA(125,-125,"晨光"); 64 }