VC 读注册表获取安装程序

Windows 系统中，安装程序都可以在注册表 HKEY_LOCAL_MACHINE\SoftWare\Microsoft\Windows\CurrentVersion\Uninstall 获取，并且xp、vista、win7、win8都一样

打开注册表命令：regedit，依次展开上述注册表路径，安装程序列表如下图：

 

获取系统安装程序列表：

// 获取系统安装程序列表  BOOL CMyListCtrlTestDlg::AllRegKey(HKEY hKey, LPCTSTR szDesKeyItem) 
 { 
     HKEY hSubKey; 
     DWORD dwIndex = 0; 
     long lResult; 
     int i = 1; 

     lResult = RegOpenKeyEx(hKey, szDesKeyItem, 0, KEY_READ, &hSubKey);      // 打开注册表 
     if(ERROR_SUCCESS == lResult) { 
         TCHAR szKeyName[256] = { 0 }; 
         DWORD cbName = 256*sizeof(TCHAR); 

         lResult = RegEnumKeyEx(hSubKey, dwIndex, szKeyName, &cbName, 0, NULL, NULL, NULL);      // 获取字段 
         while (lResult == ERROR_SUCCESS && lResult != ERROR_MORE_DATA){ 
             OutputDebugString(szKeyName); 


             CString str; 
             str.Format(_T("%d"), i); 

             i = m_MyList.InsertItem(i, str);        // 插入到List控件显示 
             m_MyList.SetItemText(i,1,szKeyName); 


             dwIndex = dwIndex + 1;          // 改变dwIndex，循环获取下移字段 
             cbName = 256*sizeof(TCHAR); 
             lResult = RegEnumKeyEx(hSubKey, dwIndex, szKeyName, &cbName, 0, NULL, NULL, NULL); 

             i++; 

         } 
         RegCloseKey(hSubKey);       // 关闭注册表 
         return TRUE; 
     } 
     RegCloseKey(hSubKey); 
     return FALSE; 
 } 

 
获取安装程序属性信息（二次读取注册表）：

BOOL SoftList::AllRegKey(HKEY hKey, LPCTSTR szDesKeyItem){HKEY hSubKey;DWORD dwIndex = 0;long lResult;lResult = RegOpenKeyEx(hKey, szDesKeyItem, 0, KEY_READ, &hSubKey);// 打开注册表if(ERROR_SUCCESS == lResult) {int id = 1;// 序号TCHAR s_name[256] = {0};// 软件名TCHAR s_DisplayName[256] = {0};// 显示名称TCHAR s_Publisher[256] = {0};// 发布者TCHAR s_InstallDate[12] = {0};// 安装日期DWORD s_EstimatedSize;// 大小TCHAR s_DisplayVersion[256] = { 0 };// 版本DWORD cbName = 256*sizeof(TCHAR);DWORD cbName2 = sizeof(TCHAR);DWORD typeSZ = REG_SZ;// SZ 注册表类型DWORD typeDWORD = REG_DWORD;// DWORD 注册表类型lResult = RegEnumKeyEx(hSubKey, dwIndex, s_name, &cbName, 0, NULL, NULL, NULL);// 获取字段while (lResult == ERROR_SUCCESS && lResult != ERROR_MORE_DATA){OutputDebugString(s_name);CString str;str.Format(_T("%d"), id);id = m_SoftList.InsertItem(id, str);// 插入到List控件显示m_SoftList.SetItemText(id, 1, s_name);HKEY hItem;// 下一级注册表句柄if(::RegOpenKeyEx(hSubKey, s_name, 0, KEY_READ, &hItem) == ERROR_SUCCESS){// 提取下一级注册表程序的属性信息if (::RegQueryValueEx(hItem, _T("DisplayName"), 0, &typeSZ, (LPBYTE)s_DisplayName, &cbName) == ERROR_SUCCESS) {m_SoftList.SetItemText(id, 1, s_DisplayName);}if (::RegQueryValueEx(hItem, _T("Publisher"), 0, &typeSZ, (LPBYTE)s_Publisher, &cbName) == ERROR_SUCCESS) {m_SoftList.SetItemText(id, 2, s_Publisher);}if (::RegQueryValueEx(hItem, _T("InstallDate"), 0, &typeSZ, (LPBYTE)s_InstallDate, &cbName) == ERROR_SUCCESS) {if (s_InstallDate != NULL) {// 判断是否为空m_SoftList.SetItemText(id, 3, s_InstallDate);}}if (::RegQueryValueEx(hItem, _T("EstimatedSize"), 0, &typeDWORD, (LPBYTE)&s_EstimatedSize, &cbName2) == ERROR_SUCCESS) {float f_Size = s_EstimatedSize/1024.0;// DWORD 转换为 CString 类型CString p_Size;p_Size.Format(_T("%.2f M"), f_Size);m_SoftList.SetItemText(id, 4, p_Size);}if (::RegQueryValueEx(hItem, _T("DisplayVersion"), 0, &typeSZ, (LPBYTE)s_DisplayVersion, &cbName) == ERROR_SUCCESS) {m_SoftList.SetItemText(id, 5, s_DisplayVersion);}::RegCloseKey(hItem);// 关闭二级注册表（程序属性信息）}dwIndex = dwIndex + 1;// 改变dwIndex，循环获取下移字段cbName = 256*sizeof(TCHAR);lResult = RegEnumKeyEx(hSubKey, dwIndex, s_name, &cbName, 0, NULL, NULL, NULL);id++;}RegCloseKey(hSubKey);// 关闭一级注册表（读取程序信息）return TRUE;}RegCloseKey(hSubKey);return FALSE;}

通过注册表路径获取调用：

AllRegKey(HKEY_LOCAL_MACHINE, TEXT("SoftWare\\Microsoft\\Windows\\CurrentVersion\\Uninstall"));

 

运行结果：