rundlg.cpp

在一个对话框的应用程序中通过映射计时器消息实现这样的功能：单击开始按钮时小球开始运动

// RunDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Run.h"
#include "RunDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CRunDlg dialog

CRunDlg::CRunDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CRunDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CRunDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CRunDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CRunDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CRunDlg, CDialog)
	//{{AFX_MSG_MAP(CRunDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(ID_START, OnStart)
	ON_BN_CLICKED(ID_STOP, OnStop)
	ON_WM_TIMER()
	ON_BN_CLICKED(ID_RESET, OnReset)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CRunDlg message handlers

BOOL CRunDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CRunDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CRunDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
/////////////////////全局变量///////////////////////////
	COUNTRED=0;
	COUNTGREEN=0;
	COUNTBLUE=0;
	COUNTX=0;

	DELAYRED=1;
	DELAYGREEN=2;
	DELAYBLUE=3;
	DELAYX=4;

	
////////////////////////////////////////////////////////
	CClientDC dc(this);
	CPen pen1;
	pen1.CreatePen(PS_SOLID,2,RGB(0,0,0)); 
    dc.Rectangle(80,30,480,430);           //创建黑色画笔画边框

/////////////////画线////////////////////////////////////
    CPen pen2;
	pen2.CreatePen(PS_SOLID,2,RGB(0,0,0)); //画直线
	dc.MoveTo(400,30);            
    dc.LineTo(80,350);  

	CPen pen3;
	pen3.CreatePen(PS_SOLID,2,RGB(0,0,0));
    dc.MoveTo(440,30);            
    dc.LineTo(80,390); 

	CPen pen4;
	pen4.CreatePen(PS_SOLID,2,RGB(0,0,0));
	dc.MoveTo(480,30);            
    dc.LineTo(80,430); 

	CPen pen5;
	pen5.CreatePen(PS_SOLID,2,RGB(0,0,0));
	dc.MoveTo(480,72);            
    dc.LineTo(122,430); 

	CPen pen6;
	pen6.CreatePen(PS_SOLID,2,RGB(0,0,0));
	dc.MoveTo(480,112);            
    dc.LineTo(162,430); 
///////////////////////////画球/////////////////////////////
	CPen pen7(PS_SOLID,1,RGB(0,0,0));
	
	CBrush BrushRed(RGB(255,0,0));
	dc.SelectObject(&pen7);
	dc.SelectObject(&BrushRed);
	dc.Ellipse(394,34,419,59);

	CBrush BrushGreen(RGB(0,255,0));
	dc.SelectObject(&pen7);
	dc.SelectObject(&BrushGreen);
	dc.Ellipse(434,34,459,59);

	CBrush BrushBlue(RGB(0,0,255));
	dc.SelectObject(&pen7);
	dc.SelectObject(&BrushBlue);
	dc.Ellipse(454,56,479,81);

    CBrush BrushX(RGB(255,255,0));
	dc.SelectObject(&pen7);
	dc.SelectObject(&BrushX);
	dc.Ellipse(454,96,479,121);
////////////////////////////////////////////////////////////
  


	

}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CRunDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CRunDlg::OnStart() 
{
	// TODO: Add your control notification handler code here
	SetTimer(1,100,NULL);//设置时钟计时器
}

void CRunDlg::OnStop() 
{
	// TODO: Add your control notification handler code here
	KillTimer(1); //关闭时钟计时器
}

void CRunDlg::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
    COUNTRED++;
	COUNTGREEN++;
	COUNTBLUE++;
	COUNTX++;


	CClientDC dc(this);
	//定义并创建画刷，画笔
	CPen penWhite(PS_SOLID,1,RGB(255,255,255));
	CPen penBlack(PS_SOLID,1,RGB(0,0,0));

	CBrush BrushWhite(RGB(255,255,255));
	CBrush BrushRed(RGB(255,0,0));
	CBrush BrushGreen(RGB(0,255,0));
	CBrush BrushBlue(RGB(0,0,255));
	CBrush BrushX(RGB(0,255,255));

////////////////////擦去小球//////////////////////////////////
	dc.SelectObject(&penWhite);
    dc.SelectObject(&BrushWhite);
	dc.Ellipse(394-(COUNTRED-1)*DELAYRED,34+(COUNTRED-1)*DELAYRED,419-(COUNTRED-1)*DELAYRED,59+(COUNTRED-1)*DELAYRED);
    dc.Ellipse(434-(COUNTGREEN-1)*DELAYGREEN,34+(COUNTGREEN-1)*DELAYGREEN,459-(COUNTGREEN-1)*DELAYGREEN,59+(COUNTGREEN-1)*DELAYGREEN);
	dc.Ellipse(454-(COUNTBLUE-1)*DELAYBLUE,56+(COUNTBLUE-1)*DELAYBLUE,479-(COUNTBLUE-1)*DELAYBLUE,81+(COUNTBLUE-1)*DELAYBLUE);
    dc.Ellipse(454-(COUNTX-1)*DELAYX,96+(COUNTX-1)*DELAYX,479-(COUNTX-1)*DELAYX,121+(COUNTX-1)*DELAYX);
//////////////////////////////////////////////////////////////


///////////////////重新画球//////////////////////////////////
	dc.SelectObject(&penBlack);
	dc.SelectObject(&BrushRed);
    dc.Ellipse(394-COUNTRED*DELAYRED,34+COUNTRED*DELAYRED,419-COUNTRED*DELAYRED,59+COUNTRED*DELAYRED);

	dc.SelectObject(&penBlack);
	dc.SelectObject(&BrushGreen);
	dc.Ellipse(434-COUNTGREEN*DELAYGREEN,34+COUNTGREEN*DELAYGREEN,459-COUNTGREEN*DELAYGREEN,59+COUNTGREEN*DELAYGREEN);

    dc.SelectObject(&penBlack);
	dc.SelectObject(&BrushBlue);
	dc.Ellipse(454-COUNTBLUE*DELAYBLUE,56+COUNTBLUE*DELAYBLUE,479-COUNTBLUE*DELAYBLUE,81+COUNTBLUE*DELAYBLUE);

    dc.SelectObject(&penBlack);
	dc.SelectObject(&BrushX);
	dc.Ellipse(454-COUNTX*DELAYX,96+COUNTX*DELAYX,479-COUNTX*DELAYX,121+COUNTX*DELAYX);
///////////////////////判断是否越界///////////////////////////////////
	if((394-COUNTRED*DELAYRED)<93)
	{
		dc.SelectObject(&penWhite);
		dc.SelectObject(&BrushWhite);
        dc.Ellipse(394-COUNTRED*DELAYRED,34+COUNTRED*DELAYRED,419-COUNTRED*DELAYRED,59+COUNTRED*DELAYRED);

		COUNTRED=0;
        dc.SelectObject(&penBlack);
		dc.SelectObject(&BrushRed);
	    dc.Ellipse(394,34,419,59);


	}

	if((434-COUNTGREEN*DELAYGREEN)<93)
	{
        dc.SelectObject(&penWhite);
		dc.SelectObject(&BrushWhite);
		dc.Ellipse(434-COUNTGREEN*DELAYGREEN,34+COUNTGREEN*DELAYGREEN,459-COUNTGREEN*DELAYGREEN,59+COUNTGREEN*DELAYGREEN);
        
		COUNTGREEN=0;
        dc.SelectObject(&penBlack);
		dc.SelectObject(&BrushGreen);
    	dc.Ellipse(434,34,459,59);


	}

	if((81+COUNTBLUE*DELAYBLUE)>415)
	{
        dc.SelectObject(&penWhite);
		dc.SelectObject(&BrushWhite);
		dc.Ellipse(454-COUNTBLUE*DELAYBLUE,56+COUNTBLUE*DELAYBLUE,479-COUNTBLUE*DELAYBLUE,81+COUNTBLUE*DELAYBLUE);

		COUNTBLUE=0;

		dc.SelectObject(&penBlack);
		dc.SelectObject(&BrushBlue);
    	dc.Ellipse(454,56,479,81);


	}

	if((121+COUNTX*DELAYX)>415)
	{
        dc.SelectObject(&penWhite);
		dc.SelectObject(&BrushWhite);
		dc.Ellipse(454-COUNTX*DELAYX,96+COUNTX*DELAYX,479-COUNTX*DELAYX,121+COUNTX*DELAYX);

		COUNTX=0;
		dc.SelectObject(&penBlack);
		dc.SelectObject(&BrushX);
	    dc.Ellipse(454,96,479,121);

	}



	




	CDialog::OnTimer(nIDEvent);
}







void CRunDlg::OnReset() 
{
	// TODO: Add your control notification handler code here
	
	CClientDC dc(this);                              //用白色画去小球
	CPen penWhite(PS_SOLID,1,RGB(255,255,255));
    CBrush BrushWhite(RGB(255,255,255));
	dc.SelectObject(&penWhite);
    dc.SelectObject(&BrushWhite);
	dc.Ellipse(394-COUNTRED*DELAYRED,34+COUNTRED*DELAYRED,419-COUNTRED*DELAYRED,59+COUNTRED*DELAYRED);
	dc.Ellipse(434-COUNTGREEN*DELAYGREEN,34+COUNTGREEN*DELAYGREEN,459-COUNTGREEN*DELAYGREEN,59+COUNTGREEN*DELAYGREEN);
    dc.Ellipse(454-COUNTBLUE*DELAYBLUE,56+COUNTBLUE*DELAYBLUE,479-COUNTBLUE*DELAYBLUE,81+COUNTBLUE*DELAYBLUE);
    dc.Ellipse(454-COUNTX*DELAYX,96+COUNTX*DELAYX,479-COUNTX*DELAYX,121+COUNTX*DELAYX);

   
	
	CPen pen7(PS_SOLID,1,RGB(0,0,0));             //重新画球
	
	CBrush BrushRed(RGB(255,0,0));
	dc.SelectObject(&pen7);
	dc.SelectObject(&BrushRed);
	dc.Ellipse(394,34,419,59);

	CBrush BrushGreen(RGB(0,255,0));
	dc.SelectObject(&pen7);
	dc.SelectObject(&BrushGreen);
	dc.Ellipse(434,34,459,59);

	CBrush BrushBlue(RGB(0,0,255));
	dc.SelectObject(&pen7);
	dc.SelectObject(&BrushBlue);
	dc.Ellipse(454,56,479,81);

    CBrush BrushX(RGB(255,255,0));
	dc.SelectObject(&pen7);
	dc.SelectObject(&BrushX);
	dc.Ellipse(454,96,479,121);

	COUNTRED=0;
	COUNTGREEN=0;
	COUNTBLUE=0;
	COUNTX=0;


	KillTimer(1); //关闭时钟计时器




}