threadcreatdlg.cpp

详细介绍MFC的进程和线程技术

// ThreadCreatDlg.cpp : implementation file
//

#include "stdafx.h"
#include "ThreadCreat.h"
#include "ThreadCreatDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CThreadCreatDlg dialog

CThreadCreatDlg::CThreadCreatDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CThreadCreatDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CThreadCreatDlg)
		// 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);
	ISBLUE=ISRED=FALSE;
}

void CThreadCreatDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CThreadCreatDlg)
	DDX_Control(pDX, IDC_MOVEFRAME, m_MoveFrame);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CThreadCreatDlg, CDialog)
	//{{AFX_MSG_MAP(CThreadCreatDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_START, OnStart)
	ON_BN_CLICKED(IDC_STOP, OnStop)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CThreadCreatDlg message handlers

BOOL CThreadCreatDlg::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 CThreadCreatDlg::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 CThreadCreatDlg::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();
	}
	if(ISBLUE)//重绘蓝色小球
	{
		CDC* pDC=m_MoveFrame.GetDC();
		CBrush* poldbrush;
		CBrush newbrush(RGB(0,0,255));
		poldbrush=pDC->SelectObject(&newbrush);
		pDC->Ellipse(Blueball.X-((LPRECT)Blueball.rect)->left-Blueball.radium,Blueball.Y-((LPRECT)Blueball.rect)->top-Blueball.radium,Blueball.X-((LPRECT)Blueball.rect)->left+Blueball.radium,Blueball.Y-((LPRECT)Blueball.rect)->top+Blueball.radium);
		pDC->SelectObject(poldbrush);
	}
	if(ISRED)//重绘红色小球
	{
		CDC* pDC=m_MoveFrame.GetDC();
		CBrush* poldbrush;
		CBrush newbrush(RGB(255,0,0));
		poldbrush=pDC->SelectObject(&newbrush);
		pDC->Ellipse(Redball.X-((LPRECT)Redball.rect)->left-Redball.radium,Redball.Y-((LPRECT)Redball.rect)->top-Redball.radium,Redball.X-((LPRECT)Redball.rect)->left+Redball.radium,Redball.Y-((LPRECT)Redball.rect)->top+Redball.radium);
		pDC->SelectObject(poldbrush);
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CThreadCreatDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}
DWORD WINAPI BallMove(LPVOID lpparameter)//小球运动线程的主函数
{
	LPINFO temp=(LPINFO)lpparameter;
	BOOL addx,addy;
	addx=addy=TRUE;
	while(TRUE)
	{
		if((temp->X+temp->radium)>=((LPRECT)temp->rect)->right)
			addx=FALSE;
		else if((temp->X-temp->radium)<=((LPRECT)temp->rect)->left)
			addx=TRUE;
		if((temp->Y+temp->radium)>=((LPRECT)temp->rect)->bottom)
			addy=FALSE;
		else if((temp->Y-temp->radium)<=((LPRECT)temp->rect)->top)
			addy=TRUE;
		//小球X方向的运动
		if(addx)
			temp->X++;
		else
			temp->X--;
		//小球Y方向的运动
		if(addy)
			temp->Y++;
		else
			temp->Y--;
		//确定重绘区域
		CRect rect(temp->X-temp->radium-3,temp->Y-temp->radium-3,temp->X+temp->radium+3,temp->Y+temp->radium+3);
		//重绘小球
		::InvalidateRect(temp->hwnd,rect,TRUE);
		//挂起线程，控制小球速度
		Sleep(temp->speed);
	}
	return 0;

}
void CThreadCreatDlg::OnStart() 
{
	// TODO: Add your control notification handler code here
	DWORD ThreadID;
	DWORD code;
	CRect rect;
	//客户区大小
	GetClientRect(rect);
	ClientToScreen(rect);
	m_MoveFrame.GetClientRect(MoveRect);
	m_MoveFrame.ClientToScreen(MoveRect);
	//取得小球客户区相对于窗口客户区的位置
	MoveRect-=rect.TopLeft();
		//生成红色小球线程
	if(!ISRED)
	{
		Redball.hwnd=m_hWnd;
		Redball.radium=12;//半径
		Redball.speed=10;//运动速度
		Redball.X=((LPRECT)MoveRect)->left+Redball.radium+50;//起始位置
		Redball.Y=((LPRECT)MoveRect)->top+Redball.radium+50;//起始位置
		Redball.rect=MoveRect;
		ISRED=TRUE;
	}
	//生成线程
	if(!GetExitCodeThread(RedThread,&code)||(code!=STILL_ACTIVE))
	{
		RedThread=CreateThread(NULL,0,BallMove,&Redball,0,&ThreadID);
	}
	if(RedThread==NULL)
	{
		MessageBox("线程创建失败！");
		ISRED=FALSE;
	}
	//生成蓝色小球线程
	if(!ISBLUE)
	{
		Blueball.hwnd=m_hWnd;
		Blueball.radium=8;//半径
		Blueball.speed=30;//运动速度
		Blueball.X=((LPRECT)MoveRect)->left+Blueball.radium+50;//起始位置
		Blueball.Y=((LPRECT)MoveRect)->top+Blueball.radium+50;//起始位置
		Blueball.rect=MoveRect;
		ISBLUE=TRUE;
	}
	//生成线程
	if(!GetExitCodeThread(BlueThread,&code)||(code!=STILL_ACTIVE))
	{
		BlueThread=CreateThread(NULL,0,BallMove,&Blueball,0,&ThreadID);
	}
	if(BlueThread==NULL)
	{
		MessageBox("线程创建失败！");
		ISBLUE=FALSE;
	}	
}

void CThreadCreatDlg::OnStop() 
{
	// TODO: Add your control notification handler code here÷
	DWORD code;
	//结束蓝色小球线程
	if(GetExitCodeThread(BlueThread,&code))
		if(code==STILL_ACTIVE)
		{
			TerminateThread(BlueThread,0);
			CloseHandle(BlueThread);
		}
	//结束红色小球线程
//	if(GetExitCodeThread(RedThread,&code))
	//	if(code==STILL_ACTIVE)
	//	{
	//		TerminateThread(RedThread,0);
	//		CloseHandle(RedThread);
	//	}
	
}