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leafmavis

木虫 (文坛精英)

[求助] VC++中如何应用porttalk

有个实验，是控制一个电动台做旋转运动（这部分VC++源代码由产品的制造商提供），从而给实验动物刺激，同时采集动物的脑电。我们想在旋转运动的开始和结束的时候，分别给并口一秒钟的高电平，以便在脑电信号采集系统上打上同步标记。我们做了一个并口的流水灯以验证并口操作的可靠性。用C++bulider 6.0时，利用PortTalk能控制流水灯工作；但用VC++ 6.0时，报错。因电动台的源码是VC++ 6.0，所以想请教高手。谢谢！
     下面是单纯的并口操作验证：
1、用C++bulider时，在工程目录下拷进这两个文件：PortTalk.sys; PortTalk.h。在Form中添加一个按键（功能为：使并口输出脉宽为1秒的高电平），并在Form中添加了并口初始化（因为计算机开机时并口各数据位是高电平，初始化就是将所有数据位置低）。程序运行正常，流水灯的开闭正常。

2、用VC++时，操作同上，但编译时报错。想请问一下，在VC++下如何使用PortTalk ？网上没说PortTalk不能用于VC++呀

--------------------Configuration: fang1 - Win32 Debug--------------------
Compiling resources...
Compiling...
StdAfx.cpp
Compiling...
fang1.cpp
fang1Dlg.cpp
e:\work\vc\learn1\fang1\porttalk.h(41) : error C2065: 'ShowMessage' : undeclared identifier
e:\work\vc\learn1\fang1\porttalk.h(80) : error C2065: 'SC_HANDLE' : undeclared identifier
e:\work\vc\learn1\fang1\porttalk.h(80) : error C2146: syntax error : missing ';' before identifier 'SchSCManager'
e:\work\vc\learn1\fang1\porttalk.h(80) : error C2065: 'SchSCManager' : undeclared identifier
e:\work\vc\learn1\fang1\porttalk.h(81) : error C2146: syntax error : missing ';' before identifier 'schService'
e:\work\vc\learn1\fang1\porttalk.h(81) : error C2065: 'schService' : undeclared identifier
e:\work\vc\learn1\fang1\porttalk.h(85) : error C2065: 'OpenSCManager' : undeclared identifier
e:\work\vc\learn1\fang1\porttalk.h(85) : error C2065: 'SC_MANAGER_ALL_ACCESS' : undeclared identifier
e:\work\vc\learn1\fang1\porttalk.h(94) : error C2065: 'OpenService' : undeclared identifier
e:\work\vc\learn1\fang1\porttalk.h(94) : error C2065: 'SERVICE_ALL_ACCESS' : undeclared identifier
e:\work\vc\learn1\fang1\porttalk.h(110) : error C2065: 'StartService' : undeclared identifier
e:\work\vc\learn1\fang1\porttalk.h(112) : error C2065: 'CloseServiceHandle' : undeclared identifier
e:\work\vc\learn1\fang1\porttalk.h(118) : error C2146: syntax error : missing ';' before identifier 'SchSCManager'
e:\work\vc\learn1\fang1\porttalk.h(119) : error C2146: syntax error : missing ';' before identifier 'schService'
e:\work\vc\learn1\fang1\porttalk.h(129) : error C2065: 'CreateService' : undeclared identifier
Generating Code...
Error executing cl.exe.

fang1.exe - 15 error(s), 0 warning(s)
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春如杯中水
1楼2011-05-03 21:15:56
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yalefield

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老汉一枚

【答案】应助回帖

★ ★
余泽成(金币+2): 谢谢参与应助！ 2011-05-04 22:51:48
leafmavis(金币+2): 谢谢热情相助 2011-05-05 09:08:35
(1) 在您用到PortTalk中的函数时，首先要
#include "PortTalk.h"

(2) 等下一步您遇到更多错误时，再说咯。
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2楼2011-05-04 08:42:37
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leafmavis

木虫 (文坛精英)
谢谢您的回复，不过头文件是加上了的。附上C++源码，除 #include "PortTalk.h" 和最后面的按键响应函数，其他的都是自动生成的。请帮忙分析，谢谢！


// fang1Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "fang1.h"
#include "fang1Dlg.h"
#include "PortTalk.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:oDataExchange(CDataExchange* pDX)
{
        CDialog:oDataExchange(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()

/////////////////////////////////////////////////////////////////////////////
// CFang1Dlg dialog

CFang1Dlg::CFang1Dlg(CWnd* pParent /*=NULL*/)
        : CDialog(CFang1Dlg::IDD, pParent)
{
        //{{AFX_DATA_INIT(CFang1Dlg)
                // 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 CFang1Dlg:oDataExchange(CDataExchange* pDX)
{
        CDialog:oDataExchange(pDX);
        //{{AFX_DATA_MAP(CFang1Dlg)
                // NOTE: the ClassWizard will add DDX and DDV calls here
        //}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CFang1Dlg, CDialog)
        //{{AFX_MSG_MAP(CFang1Dlg)
        ON_WM_SYSCOMMAND()
        ON_WM_PAINT()
        ON_WM_QUERYDRAGICON()
        ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
        //}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CFang1Dlg message handlers

BOOL CFang1Dlg::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 CFang1Dlg::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 CFang1Dlg::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 CFang1Dlg::OnQueryDragIcon()
{
        return (HCURSOR) m_hIcon;
}

void CFang1Dlg::OnButton1()
{
        // TODO: Add your control notification handler code here
        OpenPortTalk();  //打开地址操作
        outportb(0x378,0xFF);
        Sleep(1000);
        outportb(0x378,0x00);
        ClosePortTalk();  //关闭地址操作
}
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春如杯中水
3楼2011-05-04 09:12:39
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sudo

木虫 (正式写手)

【答案】应助回帖

★ ★
余泽成(金币+2): 谢谢参与应助！ 2011-05-04 22:52:12
leafmavis(金币+7): 谢谢热情相助，VS2010下编译通过的h文件，用C++6.0还有14个错误，我再仔细研究下，谢谢！ 2011-05-05 09:12:29
界面的部分都没有问题（话说这么简单的东西直接用console application不好嘛）

于是楼主能不能贴一下PortTalk.h这个文件的内容呢？

看样子像是把函数定义放到.h文件里面了（不是类模板等特殊情况的话这么做其实不好的），恩，所以先看看吧

PS：
贴代码的时候，放到
CODE:
这个里面

会比较好看一点
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4楼2011-05-04 10:27:47
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yalefield

金虫 (文坛精英)

老汉一枚
★
余泽成(金币+1): 谢谢参与应助！ 2011-05-04 22:52:22
就是用<code>把代码部分括起来
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5楼2011-05-04 10:49:08
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leafmavis

木虫 (文坛精英)
引用回帖:
Originally posted by sudo at 2011-05-04 10:27:47:
界面的部分都没有问题（话说这么简单的东西直接用console application不好嘛）

于是楼主能不能贴一下PortTalk.h这个文件的内容呢？

看样子像是把函数定义放到.h文件里面了（不是类模板等特殊情况的话这么做 ...

当时选用PortTalk是因为这个比较简单，PortTalk是从网上下的（官网http://www.beyondlogic.org/porttalk/），而且用C++builder运行正常。下面是PortTalk.h的内容，请帮忙看一下，谢谢！

<

#ifndef _PORTTALK_H_
#define _PORTTALK_H_

#include
//---------------------------------------------------------------------------

//32768-65535 are reserved for customers
#define PORTTALK_TYPE                       40000

// The IOCTRL function codes from 0x800 to 0xFFF are for customer use
#define IOCTL_IOPM_RESTRICT_ALL_ACCESS      CTL_CODE(PORTTALK_TYPE, 0x900, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_IOPM_ALLOW_EXCUSIVE_ACCESS    CTL_CODE(PORTTALK_TYPE, 0x901, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_SET_IOPM                      CTL_CODE(PORTTALK_TYPE, 0x902, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_ENABLE_IOPM_ON_PROCESSID      CTL_CODE(PORTTALK_TYPE, 0x903, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_READ_PORT_UCHAR               CTL_CODE(PORTTALK_TYPE, 0x904, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_WRITE_PORT_UCHAR              CTL_CODE(PORTTALK_TYPE, 0x905, METHOD_BUFFERED, FILE_ANY_ACCESS)

//---------------------------------------------------------------------------
bool OpenPortTalk(void);
void ClosePortTalk(void);
void outportb(unsigned short int PortAddress, unsigned char byte);
unsigned char inportb(unsigned short int PortAddress);
bool InstallPortTalkDriver(void);
bool StartPortTalkDriver(void);

//---------------------------------------------------------------------------
HANDLE PortTalk_Handle;         //Handle for PortTalk Driver

void outportb(unsigned short int PortAddress, unsigned char byte)
{
    unsigned int error;
    DWORD BytesReturned;
    unsigned char Buffer[3];
    unsigned short * pBuffer;
    pBuffer = (unsigned short *)&Buffer[0];
    *pBuffer = PortAddress;
    Buffer[2] = byte;

    error = DeviceIoControl(PortTalk_Handle,IOCTL_WRITE_PORT_UCHAR,&Buffer,3,NULL,0,&BytesReturned,NULL);
    if(!error)
        ShowMessage("Error occured during outportb while talking to PortTalk driver";
}

unsigned char inportb(unsigned short int PortAddress)
{
    unsigned int error;
    DWORD BytesReturned;
    unsigned char Buffer[3];
    unsigned short * pBuffer;
    pBuffer = (unsigned short *)&Buffer;
    *pBuffer = PortAddress;

    error = DeviceIoControl(PortTalk_Handle,IOCTL_READ_PORT_UCHAR,&Buffer,2,&Buffer,1,&BytesReturned,NULL);
    if(!error)
        ShowMessage("Error occured during inportb while talking to PortTalk driver";

    return(Buffer[0]);
}

bool OpenPortTalk(void)
{
    PortTalk_Handle = CreateFile("\\\\.\\PortTalk",GENERIC_READ,0,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
    if(PortTalk_Handle == INVALID_HANDLE_VALUE)
    {
        StartPortTalkDriver();
        PortTalk_Handle = CreateFile("\\\\.\\PortTalk",GENERIC_READ,0,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
        if(PortTalk_Handle == INVALID_HANDLE_VALUE)
            return false;
    }
    return true;
}

void ClosePortTalk(void)
{
    CloseHandle(PortTalk_Handle);
}

bool StartPortTalkDriver(void)
{
    SC_HANDLE  SchSCManager;
    SC_HANDLE  schService;
    BOOL       ret;
    DWORD      err;

    SchSCManager = OpenSCManager (NULL,NULL,SC_MANAGER_ALL_ACCESS);
    if(SchSCManager == NULL)
    {
        if(GetLastError() == ERROR_ACCESS_DENIED)
            ShowMessage("安装驱动PortTalk.sys，需要管理员的权限！";
        return false;
    }

    do{
        schService = OpenService(SchSCManager,"PortTalk",SERVICE_ALL_ACCESS);
        if (schService == NULL)
        {
            switch(GetLastError())
            {
                case ERROR_ACCESS_DENIED:
                    return false;
                case ERROR_INVALID_NAME:
                    return false;
                case ERROR_SERVICE_DOES_NOT_EXIST:
                     InstallPortTalkDriver();
                     break;
            }
        }
    }while (schService == NULL);

    ret = StartService(schService,0,NULL);
    if(ret == NULL)    return false;
    CloseServiceHandle (schService);
    return true;
}

bool InstallPortTalkDriver(void)
{
    SC_HANDLE  SchSCManager;
    SC_HANDLE  schService;
    DWORD      err;
    CHAR       DriverFileName[80];

    GetSystemDirectory(DriverFileName, 55);
    lstrcat(DriverFileName,"\\Drivers\\PortTalk.sys";

    if(!CopyFile("PortTalk.sys", DriverFileName, FALSE))
        return false;
    SchSCManager = OpenSCManager (NULL,NULL,SC_MANAGER_ALL_ACCESS);
    schService = CreateService (SchSCManager,"PortTalk","PortTalk",SERVICE_ALL_ACCESS,SERVICE_KERNEL_DRIVER,SERVICE_DEMAND_START,SERVICE_ERROR_NORMAL,"System32\\Drivers\\PortTalk.sys",NULL,NULL,NULL,NULL,NULL);

    if(schService == NULL)
        return false;
    CloseServiceHandle (schService);
    return true;
}
//---------------------------------------------------------------------------
#endif

code>
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春如杯中水
6楼2011-05-04 14:20:15
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yyqiao

金虫 (小有名气)

【答案】应助回帖

★ ★
余泽成(金币+2): 谢谢参与应助，欢迎常来程序语言版！ 2011-05-04 22:52:56
leafmavis(金币+1): 谢谢参与应助 2011-05-05 09:13:12
相信这个PortTalk里还使用了一些其他的定义和函数，如
SC_HANDLE
ShowMessage()
等。
因此，只用这个PortTalk.h肯定不行。
最好看看，它还有其他相关联的文件。
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7楼2011-05-04 14:33:45
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sudo

木虫 (正式写手)

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余泽成(金币+2): 辛苦了！ 2011-05-04 22:54:12
不保证能用，把下面的代码贴到PortTalk.h里面的#include 那行的下面
CODE:
#include
#include

#ifdef _MFC_VER
#define ShowMessage MessageBox
#else
#define ShowMessage printf
#endif

你再编译看看有什么错误，大家再讨论~


【评论】

porttalk这个.h库写得很不好

如果在两个不同的.c/.cpp文件里面include的话，作为一个工程，会有重定义error的

不过先就这么地吧，等楼主以后熟悉编程之后，自己写都不是问题
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8楼2011-05-04 14:56:34
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leafmavis

木虫 (文坛精英)
引用回帖:
Originally posted by sudo at 2011-05-04 14:56:34:
不保证能用，把下面的代码贴到PortTalk.h里面的#include <winioctl.h>那行的下面

[code]
#include <windows.h>
#include <stdio.h>

#ifdef _MFC_VER
#define ShowMessage MessageBox
...

谢谢各位热心的回复。
加上这段后还报错。

fang1Dlg.cpp
e:\work\vc\learn1\fang1\porttalk.h(51) : error C2660: 'MessageBoxA' : function does not take 1 parameters
e:\work\vc\learn1\fang1\porttalk.h(65) : error C2660: 'MessageBoxA' : function does not take 1 parameters
e:\work\vc\learn1\fang1\porttalk.h(90) : error C2065: 'SC_HANDLE' : undeclared identifier
e:\work\vc\learn1\fang1\porttalk.h(90) : error C2146: syntax error : missing ';' before identifier 'SchSCManager'
e:\work\vc\learn1\fang1\porttalk.h(90) : error C2065: 'SchSCManager' : undeclared identifier
e:\work\vc\learn1\fang1\porttalk.h(91) : error C2146: syntax error : missing ';' before identifier 'schService'
e:\work\vc\learn1\fang1\porttalk.h(91) : error C2065: 'schService' : undeclared identifier
e:\work\vc\learn1\fang1\porttalk.h(95) : error C2065: 'OpenSCManager' : undeclared identifier
e:\work\vc\learn1\fang1\porttalk.h(95) : error C2065: 'SC_MANAGER_ALL_ACCESS' : undeclared identifier
e:\work\vc\learn1\fang1\porttalk.h(99) : error C2660: 'MessageBoxA' : function does not take 1 parameters
e:\work\vc\learn1\fang1\porttalk.h(104) : error C2065: 'OpenService' : undeclared identifier
e:\work\vc\learn1\fang1\porttalk.h(104) : error C2065: 'SERVICE_ALL_ACCESS' : undeclared identifier
e:\work\vc\learn1\fang1\porttalk.h(120) : error C2065: 'StartService' : undeclared identifier
e:\work\vc\learn1\fang1\porttalk.h(122) : error C2065: 'CloseServiceHandle' : undeclared identifier
e:\work\vc\learn1\fang1\porttalk.h(128) : error C2146: syntax error : missing ';' before identifier 'SchSCManager'
e:\work\vc\learn1\fang1\porttalk.h(129) : error C2146: syntax error : missing ';' before identifier 'schService'
e:\work\vc\learn1\fang1\porttalk.h(139) : error C2065: 'CreateService' : undeclared identifier
Error executing cl.exe.

fang1.exe - 17 error(s), 0 warning(s)
>
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春如杯中水
9楼2011-05-04 20:41:20
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sudo

木虫 (正式写手)

【答案】应助回帖

★ ★
余泽成(金币+2): 谢谢参与应助！ 2011-05-04 22:55:03
下面的porttalk.h在VS2010下编译通过，然后运行没验证~
CODE:
#ifndef _PORTTALK_H_
#define _PORTTALK_H_

#include
#include

#ifdef _MSC_VER
static void ShowMessage(LPCTSTR str){
        MessageBox(NULL, str, NULL, 0);
}
#endif

//---------------------------------------------------------------------------

//32768-65535 are reserved for customers
#define PORTTALK_TYPE                       40000

// The IOCTRL function codes from 0x800 to 0xFFF are for customer use
#define IOCTL_IOPM_RESTRICT_ALL_ACCESS      CTL_CODE(PORTTALK_TYPE, 0x900, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_IOPM_ALLOW_EXCUSIVE_ACCESS    CTL_CODE(PORTTALK_TYPE, 0x901, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_SET_IOPM                      CTL_CODE(PORTTALK_TYPE, 0x902, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_ENABLE_IOPM_ON_PROCESSID      CTL_CODE(PORTTALK_TYPE, 0x903, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_READ_PORT_UCHAR               CTL_CODE(PORTTALK_TYPE, 0x904, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_WRITE_PORT_UCHAR              CTL_CODE(PORTTALK_TYPE, 0x905, METHOD_BUFFERED, FILE_ANY_ACCESS)

//---------------------------------------------------------------------------
bool OpenPortTalk(void);
void ClosePortTalk(void);
void outportb(unsigned short int PortAddress, unsigned char byte);
unsigned char inportb(unsigned short int PortAddress);
bool InstallPortTalkDriver(void);
bool StartPortTalkDriver(void);

//---------------------------------------------------------------------------
HANDLE PortTalk_Handle;         //Handle for PortTalk Driver

void outportb(unsigned short int PortAddress, unsigned char byte)
{
    unsigned int error;
    DWORD BytesReturned;
    unsigned char Buffer[3];
    unsigned short * pBuffer;
    pBuffer = (unsigned short *)&Buffer[0];
    *pBuffer = PortAddress;
    Buffer[2] = byte;

    error = DeviceIoControl(PortTalk_Handle,IOCTL_WRITE_PORT_UCHAR,&Buffer,3,NULL,0,&BytesReturned,NULL);
    if(!error)
        ShowMessage("Error occured during outportb while talking to PortTalk driver");
}

unsigned char inportb(unsigned short int PortAddress)
{
    unsigned int error;
    DWORD BytesReturned;
    unsigned char Buffer[3];
    unsigned short * pBuffer;
    pBuffer = (unsigned short *)&Buffer;
    *pBuffer = PortAddress;

    error = DeviceIoControl(PortTalk_Handle,IOCTL_READ_PORT_UCHAR,&Buffer,2,&Buffer,1,&BytesReturned,NULL);
    if(!error)
        ShowMessage("Error occured during inportb while talking to PortTalk driver");

    return(Buffer[0]);
}

bool OpenPortTalk(void)
{
    PortTalk_Handle = CreateFile("\\\\.\\PortTalk",GENERIC_READ,0,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
    if(PortTalk_Handle == INVALID_HANDLE_VALUE)
    {
        StartPortTalkDriver();
        PortTalk_Handle = CreateFile("\\\\.\\PortTalk",GENERIC_READ,0,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
        if(PortTalk_Handle == INVALID_HANDLE_VALUE)
            return false;
    }
    return true;
}

void ClosePortTalk(void)
{
    CloseHandle(PortTalk_Handle);
}

bool StartPortTalkDriver(void)
{
    SC_HANDLE  SchSCManager;
    SC_HANDLE  schService;
    BOOL       ret;
    DWORD      err;

    SchSCManager = OpenSCManager (NULL,NULL,SC_MANAGER_ALL_ACCESS);
    if(SchSCManager == NULL)
    {
        if(GetLastError() == ERROR_ACCESS_DENIED)
            ShowMessage("安装驱动PortTalk.sys，需要管理员的权限！");
        return false;
    }

    do{
        schService = OpenService(SchSCManager,"PortTalk",SERVICE_ALL_ACCESS);
        if (schService == NULL)
        {
            switch(GetLastError())
            {
                case ERROR_ACCESS_DENIED:
                    return false;
                case ERROR_INVALID_NAME:
                    return false;
                case ERROR_SERVICE_DOES_NOT_EXIST:
                     InstallPortTalkDriver();
                     break;
            }
        }
    }while (schService == NULL);

    ret = StartService(schService,0,NULL);
    if(ret == NULL)    return false;
    CloseServiceHandle (schService);
    return true;
}

bool InstallPortTalkDriver(void)
{
    SC_HANDLE  SchSCManager;
    SC_HANDLE  schService;
    DWORD      err;
    CHAR       DriverFileName[80];

    GetSystemDirectory(DriverFileName, 55);
    lstrcat(DriverFileName,"\\Drivers\\PortTalk.sys");

    if(!CopyFile("PortTalk.sys", DriverFileName, FALSE))
        return false;
    SchSCManager = OpenSCManager (NULL,NULL,SC_MANAGER_ALL_ACCESS);
    schService = CreateService (SchSCManager,"PortTalk","PortTalk",SERVICE_ALL_ACCESS,SERVICE_KERNEL_DRIVER,SERVICE_DEMAND_START,SERVICE_ERROR_NORMAL,"System32\\Drivers\\PortTalk.sys",NULL,NULL,NULL,NULL,NULL);

    if(schService == NULL)
        return false;
    CloseServiceHandle (schService);
    return true;
}
//---------------------------------------------------------------------------
#endif
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