ch13demo4dlg.cpp

零基础学Visual.C....教案PPT.随书光盘-452M.zip

// Ch13Demo4Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "Ch13Demo4.h"
#include "Ch13Demo4Dlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#define WM_USERMSG WM_USER+100//自定义消息
volatile int SpeedControl;//定义全局变量
/////////////////////////////////////////////////////////////////////////////
/*UINT ThreadFunc(LPVOID lpParam)									//线程函数
{
  CEdit* pInfo=(CEdit*)lpParam;							//线程函数参数
  int i=0;
  CString str;
  while(true)
  {
	  if(SpeedControl==0)//正常速度计数
	  {
		  str.Format("%d",i);
		  pInfo->SetWindowText(str);
		  Sleep(500);
		  i++;
	  }
	  if(SpeedControl==1)//低速计数
	  {
		  str.Format("%d",i);
		  pInfo->SetWindowText(str);
		  Sleep(2000);
		  i++;
	  }
	  if(SpeedControl==2)//高速计数
	  {
		  str.Format("%d",i);
		  pInfo->SetWindowText(str);
		  Sleep(250);
		  i++;
	  }

  }
  return 0;
}*/
UINT ThreadFunc(LPVOID lpParam)									//线程函数
{
  NumInfo* pInfo=(NumInfo*)lpParam;							//线程函数参数
  int i=0;
  CString str;
  while(true)
  {
	 
	  if(SpeedControl==0)//正常速度计数
	  {
		  str.Format("%d",i);
		  pInfo->pedit->SetWindowText(str);
		  Sleep(500);
		  i++;
	  }
	  if(SpeedControl==1)//低速计数
	  {
		  str.Format("%d",i);
		  pInfo->pedit->SetWindowText(str);
		  Sleep(2000);
		  i++;
	  }
	  if(SpeedControl==2)//高速计数
	  {
		  str.Format("%d",i);
		  pInfo->pedit->SetWindowText(str);
		  Sleep(250);
		  i++;
	  }
	  if((i%20)==0)//计数到了20的整数倍
	  {
		  ::PostMessage(pInfo->hwnd,WM_USERMSG,0,0);			//向主线程发送消息
	  }

  }
  return 0;
}
// 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()

/////////////////////////////////////////////////////////////////////////////
// CCh13Demo4Dlg dialog

CCh13Demo4Dlg::CCh13Demo4Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CCh13Demo4Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CCh13Demo4Dlg)
	m_radio = 1;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CCh13Demo4Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCh13Demo4Dlg)
	DDX_Control(pDX, IDC_EDIT1, m_Num);
	DDX_Radio(pDX, IDC_RADIO1, m_radio);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CCh13Demo4Dlg, CDialog)
	//{{AFX_MSG_MAP(CCh13Demo4Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_STAR, OnStar)
	ON_BN_CLICKED(IDC_RADIO1, OnRadio1)
	ON_BN_CLICKED(IDC_RADIO2, OnRadio2)
	ON_BN_CLICKED(IDC_RADIO3, OnRadio3)
	//}}AFX_MSG_MAP
	ON_MESSAGE(WM_USERMSG,OnMsg)//自定义消息映射
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCh13Demo4Dlg message handlers

BOOL CCh13Demo4Dlg::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
	GetDlgItem(IDC_RADIO1)->EnableWindow(false);//单选按钮无效
	GetDlgItem(IDC_RADIO2)->EnableWindow(false);
	GetDlgItem(IDC_RADIO3)->EnableWindow(false);
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CCh13Demo4Dlg::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 CCh13Demo4Dlg::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();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CCh13Demo4Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

/*void CCh13Demo4Dlg::OnStar() 
{
	// TODO: Add your control notification handler code here
	SpeedControl=0;
	GetDlgItem(IDC_RADIO1)->EnableWindow(true);//单选按钮生效
	GetDlgItem(IDC_RADIO2)->EnableWindow(true);
	GetDlgItem(IDC_RADIO3)->EnableWindow(true);
	GetDlgItem(IDC_STAR)->EnableWindow(false);//开始按钮无效
	CWinThread* pThread=AfxBeginThread(ThreadFunc,&m_Num);//创建新的线程并开始执行	
}*/
void CCh13Demo4Dlg::OnStar() 
{
	// TODO: Add your control notification handler code here
	SpeedControl=0;
	GetDlgItem(IDC_RADIO1)->EnableWindow(true);//单选按钮生效
	GetDlgItem(IDC_RADIO2)->EnableWindow(true);
	GetDlgItem(IDC_RADIO3)->EnableWindow(true);
	GetDlgItem(IDC_STAR)->EnableWindow(false);//开始按钮无效

	numinfo.pedit=&m_Num;
	numinfo.hwnd=GetSafeHwnd();									//获取主线程窗口指针
	CWinThread* pThread=AfxBeginThread(ThreadFunc,&numinfo);//创建新的线程并开始执行	
}
void CCh13Demo4Dlg::OnRadio1() 
{
	// TODO: Add your control notification handler code here
	SpeedControl=1;//低速
	m_radio=0;

}

void CCh13Demo4Dlg::OnRadio2() 
{
	// TODO: Add your control notification handler code here
	SpeedControl=0;//中速
	m_radio=1;
}

void CCh13Demo4Dlg::OnRadio3() 
{
	// TODO: Add your control notification handler code here
	SpeedControl=2;//高速
	m_radio=2;
}

void CCh13Demo4Dlg::OnMsg() 
{
	// TODO: Add your control notification handler code here
	switch (m_radio)
	{
		case 0://如果为低速变为中速
			m_radio=1;
			UpdateData(false);
			SpeedControl=0;//中速
			AfxMessageBox("速度变为中速！");						//提示对话框
			break;
		case 1://如果为中速，变为高速
			m_radio=2;
			UpdateData(false);
			SpeedControl=2;//高速
			AfxMessageBox("速度变为高速！");						//提示对话框
			break;
		case 2://如果为高速，变为低速
			m_radio=0;
			UpdateData(false);
			SpeedControl=1;//低速
			AfxMessageBox("速度变为低速！");						//提示对话框
			break;
	}
	
}