serialcommdlg.cpp

一个风扇转速控制的上位机程序

// SerialCommDlg.cpp : implementation file
//

#include "stdafx.h"
#include "SerialComm.h"
#include "SerialCommDlg.h"
#include "DlgProxy.h"
#include "string.h"

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

short int num[257];

/////////////////////////////////////////////////////////////////////////////
// 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()

/////////////////////////////////////////////////////////////////////////////
// CSerialCommDlg dialog

IMPLEMENT_DYNAMIC(CSerialCommDlg, CDialog);

CSerialCommDlg::CSerialCommDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CSerialCommDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CSerialCommDlg)
	m_szSendData = _T("");
	m_szRecvData = _T("");
	m_szCOMName = _T("");
	m_szBaud = _T("");
	m_szDataBits = _T("");
	m_szParity = _T("");
	m_szStopBits = _T("");
	m_szStatus = _T("");
	m_nSendCount = 0;
	m_nRecvCount = 0;
	m_sv = 0;
	m_mv = 0;
	m_ti = 0;
	m_td = 0;
	m_kp = 0;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
	m_pAutoProxy = NULL;
}

CSerialCommDlg::~CSerialCommDlg()
{
	// If there is an automation proxy for this dialog, set
	//  its back pointer to this dialog to NULL, so it knows
	//  the dialog has been deleted.
	if (m_pAutoProxy != NULL)
		m_pAutoProxy->m_pDialog = NULL;
}

void CSerialCommDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CSerialCommDlg)
	DDX_Control(pDX, IDC_COM_PID, m_ctrl_pid);
	DDX_Control(pDX, IDC_COM_LOOP, m_ctrl_loop);
	DDX_Control(pDX, IDC_SEND_MODE, m_ctrlSendMode);
	DDX_Control(pDX, IDC_OPEN_CLOSE, m_ctrlOPENclose);
	DDX_Control(pDX, IDC_SAVE, m_ctrlSAVE);
	DDX_Control(pDX, IDC_SEND, m_ctrlSEND);
	DDX_Control(pDX, IDC_CLEAR_SEND, m_ctrlCLEARsend);
	DDX_Control(pDX, IDC_CLEAR_RECV, m_ctrlCLEARrecv);
	DDX_Control(pDX, IDC_CLEAR_COUNT, m_ctrlCLEARcount);
	DDX_Control(pDX, IDC_STOP_BIT, m_ctrlStopBits);
	DDX_Control(pDX, IDC_PARITY, m_ctrlParity);
	DDX_Control(pDX, IDC_DATA_BIT, m_ctrlDataBits);
	DDX_Control(pDX, IDC_BAUD, m_ctrlBaud);
	DDX_Control(pDX, IDC_COM_NAME, m_ctrlCOMName);
	DDX_Control(pDX, IDC_RECV_DATA, m_Recv_Ctrl);
	DDX_Text(pDX, IDC_SEND_DATA, m_szSendData);
	DDX_Text(pDX, IDC_RECV_DATA, m_szRecvData);
	DDX_CBString(pDX, IDC_COM_NAME, m_szCOMName);
	DDX_CBString(pDX, IDC_BAUD, m_szBaud);
	DDX_CBString(pDX, IDC_DATA_BIT, m_szDataBits);
	DDX_CBString(pDX, IDC_PARITY, m_szParity);
	DDX_CBString(pDX, IDC_STOP_BIT, m_szStopBits);
	DDX_Text(pDX, IDC_STATUS, m_szStatus);
	DDX_Text(pDX, IDC_SEND_COUNT, m_nSendCount);
	DDX_Control(pDX, IDC_MSCOMM, m_COM);
	DDX_Text(pDX, IDC_RECV_COUNT, m_nRecvCount);
	DDX_Text(pDX, IDC_SV, m_sv);
	DDV_MinMaxUInt(pDX, m_sv, 0, 40);
	DDX_Text(pDX, IDC_MV, m_mv);
	DDX_Text(pDX, IDC_Ti, m_ti);
	DDV_MinMaxUInt(pDX, m_ti, 0, 255);
	DDX_Text(pDX, IDC_Td, m_td);
	DDV_MinMaxUInt(pDX, m_td, 0, 255);
	DDX_Text(pDX, IDC_Kp, m_kp);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CSerialCommDlg, CDialog)
	//{{AFX_MSG_MAP(CSerialCommDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_WM_CLOSE()
	ON_BN_CLICKED(IDC_OPEN_CLOSE, OnOpenClose)
	ON_BN_CLICKED(IDC_SEND, OnSend)
	ON_BN_CLICKED(IDC_CLEAR_COUNT, OnClearCount)
	ON_BN_CLICKED(IDC_CLEAR_SEND, OnClearSend)
	ON_BN_CLICKED(IDC_CLEAR_RECV, OnClearRecv)
	ON_BN_CLICKED(IDC_SETSV, OnSetsv)
	ON_BN_CLICKED(IDC_RESET, OnReset)
	ON_BN_CLICKED(IDC_LOOPSET, OnLoopset)
	ON_BN_CLICKED(IDC_INIMV, OnInimv)
	ON_BN_CLICKED(IDC_ABOUT, OnAbout)
	ON_BN_CLICKED(IDC_CANCEL, OnCancel)
	ON_BN_CLICKED(IDC_SHOWLINE, OnShowline)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSerialCommDlg message handlers

BOOL CSerialCommDlg::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

/******************************程序界面的初始化部分*****************************************
完成日期:2008-4-3
作    者:王振中
单    位:中国石油大学-自动化05级1班
e - mail:[e-mail]
********************************程序界面初始化开始******************************************/

	//波特率设置初始化
	m_ctrlBaud.AddString("300");
	m_ctrlBaud.AddString("600");
	m_ctrlBaud.AddString("1200");
	m_ctrlBaud.AddString("2400");
	m_ctrlBaud.AddString("4800");
	m_ctrlBaud.AddString("9600");
	m_ctrlBaud.AddString("19200");
	m_ctrlBaud.AddString("38400");
	m_ctrlBaud.AddString("43000");
	m_ctrlBaud.AddString("56000");
	m_ctrlBaud.AddString("57600");
	m_ctrlBaud.AddString("115200");
	m_ctrlBaud.SetCurSel(4);

	//数据位设置初始化
	m_ctrlDataBits.AddString("8");
	m_ctrlDataBits.AddString("7");
	m_ctrlDataBits.AddString("6");
	m_ctrlDataBits.SetCurSel(0);

	//校验位设置初始化
	m_ctrlParity.AddString("None");
	m_ctrlParity.AddString("Odd");
	m_ctrlParity.AddString("Even");
	m_ctrlParity.SetCurSel(0);

	//停止位设置初始化
	m_ctrlStopBits.AddString("1");
	m_ctrlStopBits.AddString("2");
	m_ctrlStopBits.SetCurSel(0);

	//发送方式设置初始化
	m_ctrlSendMode.AddString("Hex");
	m_ctrlSendMode.AddString("ASCII");
	m_ctrlSendMode.SetCurSel(1);

	//PID TYPE Initial
	m_ctrl_pid.SetCurSel(2);
	//open or close loop
	m_ctrl_loop.SetCurSel(0);

	UpdateData(false);

	//首先检测计算机中是否有串口设备存在

	HANDLE m_hCom;      //一个用于检测设备的临时句柄

	CString com[257];   //设备的名称数组

	CString comtemp;    //定义一个临时变量，用于下面的名称数组初始化

	//设备名称初始化循环开始

	for(int i=1;i<257;i++)
	{
		comtemp.Format("%d",i);
		com[i]="com"+comtemp;
	}

	//设备名称初始化循环结束

	//一般而言，计算机中最多到com4，但是有时不是主板上带的串口，而是通过pci插槽扩展出来的时候，就要考虑从com5甚至更大的情况了
	//这里检测的是最大的com值，从com1~com256

	bool cnt[257];    //定义一个数组，记录存在的设备，初始为0，即设备不存在
	for(i=0;i<257;i++)
	{
		cnt[i]=0;
	}


    for(i = 1; i< 257; i++)     //进入检测循环
	{
		m_hCom = CreateFile(com[i], GENERIC_READ | GENERIC_WRITE,0,NULL,OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL| FILE_FLAG_OVERLAPPED, NULL);  
		
		/* 这里的CreateFile函数起了很大的作用，可以用来创建系统设备文

           件，如果该设备不存在或者被占用，则会返回一个错误，即下面的 INVALID_HANDLE_VALUE ，据此可以判断可使用性。详细参见

           MSDN中的介绍。*/


        if(m_hCom == INVALID_HANDLE_VALUE)     // 如果没有该设备，或者被其他应用程序在用  
		{	;                 //如果不存在，什么都不做
		}      
		else
		{
			cnt[i]=true;     // 如果存在，则记录下来
		}

		CloseHandle(m_hCom); // 关闭文件句柄，后面我们采用控件，不用API
	}
    //设备检测循环结束

	//检测完设备之后，再对界面的串口设备选择的项目进行初始化

	int temp=false;                           //定义一个临时布尔变量，用于判断cnt数组中的值是否都为0，即不存在串口
	//short int num[257];                //定义一个数组用来存放存在的串口的端口号

	int j=0;
	for(i=1;i<257;i++)
	{
		if(cnt[i])
		{
			m_ctrlCOMName.AddString(com[i]);
			temp=true;                        //只要存在一个串口，temp即为真
			num[j]=i;                         //从num0开始记录
			j++;
		}
	}
	if(temp)
	{
		m_ctrlCOMName.SetCurSel(0);           //串口存在的话，设置默认值
	}
	else                                      // 如果不存在，则显示错误信息，防止系统异常造成界面的初始化不完全      
	{
		AfxMessageBox("未检测到串口，请检查串口是否被占用和硬件的连接是否正确，然后重启该程序",MB_OK);
		m_ctrlCLEARcount.EnableWindow(false);
		m_ctrlCLEARsend.EnableWindow(false);
		m_ctrlCLEARrecv.EnableWindow(false);
		m_ctrlSAVE.EnableWindow(false);
		m_ctrlOPENclose.EnableWindow(false);
		m_ctrlSEND.EnableWindow(false);
	}
	UpdateData(false);

/******************************程序界面的初始化部分*****************************************
完成日期:2008-4-3
作    者:王振中
单    位:中国石油大学-自动化05级1班
e - mail:[e-mail]
********************************程序界面初始化完成******************************************/


	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CSerialCommDlg::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 CSerialCommDlg::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 CSerialCommDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

// Automation servers should not exit when a user closes the UI
//  if a controller still holds on to one of its objects.  These
//  message handlers make sure that if the proxy is still in use,
//  then the UI is hidden but the dialog remains around if it
//  is dismissed.

void CSerialCommDlg::OnClose() 
{
	if (CanExit())
		CDialog::OnClose();
}

void CSerialCommDlg::OnOK() 
{
	if (CanExit())
		CDialog::OnOK();
}

void CSerialCommDlg::OnCancel() 
{
	if (CanExit())
		CDialog::OnCancel();
}

BOOL CSerialCommDlg::CanExit()
{
	// If the proxy object is still around, then the automation
	//  controller is still holding on to this application.  Leave
	//  the dialog around, but hide its UI.
	if (m_pAutoProxy != NULL)
	{
		ShowWindow(SW_HIDE);
		return FALSE;
	}