[游戏学习23] MFC 画尺子

>_<:这是个简单的MFC程序，有利于了解MFC的框架结构

>_<:Ruler.h

 #include<afxwin.h>
 class CMyApp:public CWinApp
 {
 public:
     virtual BOOL InitInstance();
 };
 class CMainWindow:public CFrameWnd
 {
 public:
     CMainWindow();
 protected:
     afx_msg void OnPaint();
     DECLARE_MESSAGE_MAP();
 };

>_<:Ruler.cpp

 #include<afxwin.h>
 #include"Ruler.h"
 CMyApp myApp;
 //////////////////////////////////////////////
 //CMyApp member function
 BOOL CMyApp::InitInstance()
 {
     m_pMainWnd=new CMainWindow;
     m_pMainWnd->ShowWindow(m_nCmdShow);
     m_pMainWnd->UpdateWindow();
     return TRUE;
 }
 /////////////////////////////////////////////
 //CMainWindow message map and member function
 BEGIN_MESSAGE_MAP(CMainWindow,CFrameWnd)
     ON_WM_PAINT()
 END_MESSAGE_MAP()

 CMainWindow::CMainWindow()
 {
     Create(NULL,_T("Ruler"),WS_OVERLAPPEDWINDOW|WS_HSCROLL|WS_VSCROLL);
 }

 void CMainWindow::OnPaint()
 {
     CPaintDC dc(this);

     //屏幕初始化
     dc.SetMapMode(MM_LOENGLISH);//0.01in  ;1英寸映射
     dc.SetTextAlign(TA_CENTER|TA_BOTTOM);
     dc.SetBkMode(TRANSPARENT);

     //画尺子主题
     CBrush brush(RGB(,,));
     CBrush* pOldBrush=dc.SelectObject(&brush);
     dc.Rectangle(,-,,-);
     dc.SelectObject(pOldBrush);

     //画刻度
     for(int i=;i<;i+=){
         dc.MoveTo(i,-);
         dc.LineTo(i,-);
     }
     for(int i=;i<;i+=){
         dc.MoveTo(i,-);
         dc.LineTo(i,-);
     }
     for(int i=;i<;i+=){
         dc.MoveTo(i,-);
         dc.LineTo(i,-);

         CString string;
         string.Format(_T("%d"),(i/)-);
         dc.TextOutA(i,-,string);
     }

     //商标

     //CRect rect(125,-125,175,-150);
     //CString string=_T("晨光");
     //dc.DrawText(string,&rect,DT_SINGLELINE|DT_CENTER|DT_VCENTER);
     dc.SetTextColor(RGB(,,));
     dc.TextOutA(,-,"晨光");
 }