C++ access to the registry to get a list of installed software information sample code
- 2020-04-02 02:00:49
- OfStack
// ---------------------------------------------------------------
// FlieNmae:
// SofInfo.h
// Remark:
//& have spent & have spent The registry is read to obtain information about the installed software on the machine.
// ---------------------------------------------------------------
#pragma once
#include <vector>
struct SoftInfo
{
//The software name
CString m_strSoftName;
//Software version number
CString m_strSoftVersion;
//Software installation directory
CString m_strInstallLocation;
//Software vendor
CString m_strPublisher;
//The full path of the main program
CString m_strMainProPath;
//Uninstall exe on the full path
CString m_strUninstallPth;
};
class CSoftInfo
{
private:
//Save installed common software installation information
std::vector<SoftInfo> m_SoftInfoArr;
//Save the system patch information
std::vector<SoftInfo> m_SystemPatchesArr;
public:
CSoftInfo();
~CSoftInfo(){}
//Gets a Vector that contains information about common software installations
std::vector<SoftInfo> GetSoftInfo (void) const;
//Gets all installed common software names
void GetSoftName (std::vector<LPCTSTR>& lpszSoftName);
//Gets the version Numbers of all installed commonly used software
void GetSoftVersion (std::vector<LPCTSTR>& lpszSoftVersion);
//Gets the directory of all installed common software installations
void GetInstallLocation (std::vector<LPCTSTR>& lpszInstallLocation);
//Gets all installed vendors of commonly used software
void GetPublisher (std::vector<LPCTSTR>& lpszPublisher);
//Gets the path of all installed common software main programs
void GetMainProPath (std::vector<LPCTSTR>& lpszMainProPath);
//Gets the path to which all common software uninstaller programs have been installed
void GetUninstallPth (std::vector<LPCTSTR>& lpszSoftName);
//Gets a Vector containing system patch information
std::vector<SoftInfo> GetSystemPatchesInfo (void) const;
//Gets the patch names for all installed systems
void GetSystemPatchesName (std::vector<LPCTSTR>& lpszSoftName);
};
// FlieNmae: Softinfo.cpp
#include "stdafx.h"
#include "SoftInfo.h"
CSoftInfo::CSoftInfo()
{
struct SoftInfo softinfo;
HKEY RootKey; //A primary key
LPCTSTR lpSubKey; //Name of children
HKEY hkResult; //Handle to the key to be opened
HKEY hkRKey;
LONG lReturn; //Record whether the registry was read successfully
CString strBuffer;
CString strMidReg;
DWORD index = 0;
TCHAR szKeyName[255] = {0}; //Registry key name
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(" Failed to open registry !"), 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;
//Start with a repeat vendor
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);
}
}