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C++訪問注冊表獲取已安裝軟件信息列表示例代碼

來源:本站原創(chuàng)|時間:2020-01-10|欄目:C語言|點擊: 次



復(fù)制代碼 代碼如下:

// ---------------------------------------------------------------
// FlieNmae:
//   SofInfo.h
// Remark:
//   通過讀取注冊表獲得本機已安裝軟件信息。
// ---------------------------------------------------------------
#pragma once
#include <vector>

struct SoftInfo
{
    // 軟件名
    CString m_strSoftName;
    // 軟件版本號
    CString m_strSoftVersion;
    // 軟件安裝目錄
    CString m_strInstallLocation;
    // 軟件發(fā)布廠商
    CString m_strPublisher;
    // 主程序所在完整路徑
    CString m_strMainProPath;
    // 卸載exe所在完整路徑
    CString m_strUninstallPth;
};

class CSoftInfo
{
private:
    // 保存已安裝常用軟件安裝信息
    std::vector<SoftInfo> m_SoftInfoArr;
    // 保存系統(tǒng)補丁信息
    std::vector<SoftInfo> m_SystemPatchesArr;

public:
    CSoftInfo();
    ~CSoftInfo(){}

    // 獲取一個包含常用軟件安裝信息的Vector
    std::vector<SoftInfo> GetSoftInfo (void) const;
    // 獲取所有已安裝常用軟件名
    void GetSoftName (std::vector<LPCTSTR>& lpszSoftName);
    // 獲取所有已安裝常用軟件版本號
    void GetSoftVersion (std::vector<LPCTSTR>& lpszSoftVersion);
    // 獲取所有已安裝常用軟件安裝目錄
    void GetInstallLocation (std::vector<LPCTSTR>& lpszInstallLocation);
    // 獲取所有已安裝常用軟件發(fā)布廠商
    void GetPublisher (std::vector<LPCTSTR>& lpszPublisher);
    // 獲取所有已安裝常用軟件主程序所在路徑
    void GetMainProPath (std::vector<LPCTSTR>& lpszMainProPath);
    // 獲取所有已安裝常用軟件卸載程序所在路徑
    void GetUninstallPth (std::vector<LPCTSTR>& lpszSoftName);

    // 獲取一個包含系統(tǒng)補丁信息的Vector
    std::vector<SoftInfo> GetSystemPatchesInfo (void) const;
    // 獲取所有已安裝系統(tǒng)補丁名
    void GetSystemPatchesName (std::vector<LPCTSTR>& lpszSoftName);
};

復(fù)制代碼 代碼如下:

// FlieNmae: Softinfo.cpp

#include "stdafx.h"
#include "SoftInfo.h"

CSoftInfo::CSoftInfo()
{
    struct SoftInfo softinfo;
    HKEY RootKey;            // 主鍵
    LPCTSTR lpSubKey;        // 子鍵名稱
    HKEY hkResult;            // 將要打開鍵的句柄
    HKEY hkRKey;
    LONG lReturn;            // 記錄讀取注冊表是否成功
    CString strBuffer;
    CString strMidReg;

    DWORD index = 0;
    TCHAR szKeyName[255] = {0};        // 注冊表項名稱
    TCHAR szBuffer[255] = {0};
    DWORD dwKeyLen = 255;
    DWORD dwNameLen = 255;
    DWORD dwType = REG_BINARY|REG_DWORD|REG_EXPAND_SZ|REG_MULTI_SZ|REG_NONE|REG_SZ;
    RootKey = HKEY_LOCAL_MACHINE;
    lpSubKey = _T("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall");

    lReturn = RegOpenKeyEx(RootKey, lpSubKey, 0, KEY_ALL_ACCESS, &hkResult);

    if (lReturn == ERROR_SUCCESS)
    {

        while (ERROR_NO_MORE_ITEMS !=RegEnumKeyEx(hkResult, index, szKeyName, &dwKeyLen, 0, NULL, NULL, NULL))
        {
            index++;
            strBuffer.Format(_T("%s"), szKeyName);
            if (!strBuffer.IsEmpty())
            {
                strMidReg = (CString)lpSubKey +_T("\\") + strBuffer;

                if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, strMidReg, 0, KEY_ALL_ACCESS, &hkRKey)==ERROR_SUCCESS)
                {
                    RegQueryValueEx(hkRKey, _T("DisplayName"), 0, &dwType, (LPBYTE)szBuffer,&dwNameLen);
                    softinfo.m_strSoftName = szBuffer;
                    dwNameLen = 255;
                    memset(szBuffer, 0, 255);

                    RegQueryValueEx(hkRKey, _T("DisplayVersion"), 0, &dwType, (LPBYTE)szBuffer,&dwNameLen);
                    softinfo.m_strSoftVersion = szBuffer;
                    dwNameLen = 255;
                    memset(szBuffer, 0, 255);

                    RegQueryValueEx(hkRKey, _T("InstallLocation"), 0, &dwType, (LPBYTE)szBuffer,&dwNameLen);
                    softinfo.m_strInstallLocation = szBuffer;
                    dwNameLen = 255;
                    memset(szBuffer, 0, 255);

                    RegQueryValueEx(hkRKey, _T("Publisher"), 0, &dwType, (LPBYTE)szBuffer,&dwNameLen);
                    softinfo.m_strPublisher = szBuffer;
                    dwNameLen = 255;

                    RegQueryValueEx(hkRKey, _T("InstallLocation"), 0, &dwType, (LPBYTE)szBuffer,&dwNameLen);
                    softinfo.m_strMainProPath = szBuffer;
                    dwNameLen = 255;
                    memset(szBuffer, 0, 255);

                    RegQueryValueEx(hkRKey, _T("UninstallString"), 0, &dwType, (LPBYTE)szBuffer,&dwNameLen);
                    softinfo.m_strUninstallPth = szBuffer;
                    dwNameLen = 255;
                    memset(szBuffer, 0, 255);

                    if(!softinfo.m_strSoftName.IsEmpty())
                    {
                        if(strBuffer.GetAt(0) == 'K' && strBuffer.GetAt(1) == 'B')
                        {
                            m_SystemPatchesArr.push_back(softinfo);
                        }
                        else
                        {
                            m_SoftInfoArr.push_back(softinfo);
                        }
                    }
                }

                dwKeyLen = 255;
                memset(szKeyName,0, 255);
            }
        }
        RegCloseKey(hkResult);
    }
    else
    {
        ::MessageBox(NULL, _T("打開注冊表失敗!"), NULL, MB_ICONWARNING);
    }
}

std::vector<SoftInfo> CSoftInfo::GetSoftInfo (void) const
{
    return m_SoftInfoArr;
}

void CSoftInfo::GetSoftName (std::vector<LPCTSTR>& lpszSoftName)
{
    std::vector<SoftInfo>::iterator iter;
    for (iter = m_SoftInfoArr.begin(); iter != m_SoftInfoArr.end(); iter++)
    {
        lpszSoftName.push_back(iter->m_strSoftName);
    }
}

void CSoftInfo::GetSoftVersion (std::vector<LPCTSTR>& lpszSoftVersion)
{
    std::vector<SoftInfo>::iterator iter;
    for (iter = m_SoftInfoArr.begin(); iter != m_SoftInfoArr.end(); iter++)
    {
        if (!(iter->m_strSoftVersion).IsEmpty())
        {
            lpszSoftVersion.push_back(iter->m_strSoftVersion);
        }
    }
}

void CSoftInfo::GetInstallLocation (std::vector<LPCTSTR>& lpszInstallLocation)
{
    std::vector<SoftInfo>::iterator iter;
    for (iter = m_SoftInfoArr.begin(); iter != m_SoftInfoArr.end(); iter++)
    {
        if (!(iter->m_strInstallLocation).IsEmpty())
        {
            lpszInstallLocation.push_back(iter->m_strInstallLocation);
        }
    }
}

void CSoftInfo::GetPublisher (std::vector<LPCTSTR>& lpszPublisher)
{
    std::vector<SoftInfo>::iterator iter;

    bool bSign;
    for (iter = m_SoftInfoArr.begin(); iter != m_SoftInfoArr.end(); iter++)
    {
        bSign = true;

        // 初步去重復(fù)廠商
        std::vector<LPCTSTR>::iterator itr;
        for (itr = lpszPublisher.begin(); itr != lpszPublisher.end(); itr++)
        {
            if (iter->m_strPublisher == (CString)*itr)
            {
                bSign = false;
            }
        }

        if (bSign)
        {
            lpszPublisher.push_back(iter->m_strPublisher);
        }
    }
}

void CSoftInfo::GetMainProPath (std::vector<LPCTSTR>& lpszMainProPath)
{
    std::vector<SoftInfo>::iterator iter;
    for (iter = m_SoftInfoArr.begin(); iter != m_SoftInfoArr.end(); iter++)
    {
        if (!(iter->m_strMainProPath).IsEmpty())
        {
            lpszMainProPath.push_back(iter->m_strMainProPath);
        }
    }
}

void CSoftInfo::GetUninstallPth (std::vector<LPCTSTR>& lpszSoftName)
{
    std::vector<SoftInfo>::iterator iter;
    for (iter = m_SoftInfoArr.begin(); iter != m_SoftInfoArr.end(); iter++)
    {
        if (!(iter->m_strUninstallPth).IsEmpty())
        {
            lpszSoftName.push_back(iter->m_strUninstallPth);
        }
    }
}

std::vector<SoftInfo> CSoftInfo::GetSystemPatchesInfo (void) const
{
    return m_SystemPatchesArr;
}

void CSoftInfo::GetSystemPatchesName (std::vector<LPCTSTR>& lpszSoftName)
{
    std::vector<SoftInfo>::iterator iter;
    for (iter = m_SystemPatchesArr.begin(); iter != m_SystemPatchesArr.end(); iter++)
    {
        lpszSoftName.push_back(iter->m_strSoftName);
    }
}

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