读取注册表获取计算机上已安装程序的信息

 1 struct SOFTWARE
 2 {
 3     CString DisplayName;
 4     CString Publisher;
 5     CString InstallDate;
 6     CString InstallLocation;
 7     CString UninstStr;
 8     CString DisplayVersion;
 9     BOOL is64;
10 };

 1 void GetSoftList( std::vector<SOFTWARE> &lst,BOOL is64 )
 2 {
 3     REGSAM samDesired = KEY_READ;
 4     if(is64) 
 5         samDesired |= KEY_WOW64_64KEY;
 6 
 7     HKEY hKey = NULL;
 8     CString root_key = _T("SOFTWAREMicrosoftWindowsCurrentVersionUninstall");
 9     //打开指定的注册表键
10     if( RegOpenKeyEx( HKEY_LOCAL_MACHINE,root_key,0,samDesired,&hKey) != ERROR_SUCCESS )
11     {
12 
13         return;
14     }
15 
16     DWORD cSubKeys = 0;            //子键数量
17     DWORD cbMaxSubKey = 0;         //子键名称的最大长度
18     DWORD retCode = RegQueryInfoKey(hKey,&cSubKeys,&cbMaxSubKey,0);
19 
20     for (int i=0; i<(int)cSubKeys; i++) 
21     { 
22         TCHAR    achKey[MAX_PATH+1] = {0};   //子键名称
23         DWORD    cbName = MAX_PATH;          //子键名称的大小
24 
25         //枚举子键信息
26         retCode = RegEnumKeyEx(hKey,i,achKey,&cbName,NULL,NULL); 
27         if (retCode == ERROR_SUCCESS) 
28         {
29             CString subkey = root_key + L"";
30             subkey += achKey;
31             //给SOFTEARE结构体成员赋值，加入动态数组
32             _QuerySoft(HKEY_LOCAL_MACHINE,subkey,is64,lst);
33         }
34     }
35 
36     RegCloseKey(hKey);
37 }

 1 void _QuerySoft(HKEY hKey,LPCTSTR lpSubKey,BOOL is64,std::vector<SOFTWARE> &lst) 
 2 { 
 3     CpzRegistry reg;
 4 
 5     pzRegAccessRights pDesired = pzRAR_Read;
 6     if(is64) 
 7         pDesired = pzRAR_Read64;
 8 
 9     reg.OpenKey(hKey,lpSubKey,FALSE,pDesired);
10 
11     SOFTWARE soft;
12     //给SOFTEARE结构体成员赋值
13     soft.DisplayName = reg.ReadString(_T("DisplayName"));
14     soft.DisplayName.Trim();                   //去掉字符序列左边和右边的空格
15     soft.DisplayName.Replace(L"=",L"");
16 
17     soft.UninstStr = reg.ReadString(_T("UninstallString"));
18     soft.UninstStr.Trim();
19 
20     soft.Publisher = reg.ReadString(_T("Publisher"));
21     soft.Publisher.Trim();
22 
23     soft.DisplayVersion = reg.ReadString(_T("DisplayVersion"));
24     soft.DisplayVersion.Trim();
25 
26     soft.InstallDate = reg.ReadString(_T("InstallDate"));
27     soft.InstallDate.Trim();
28 
29     soft.InstallLocation = reg.ReadString(_T("InstallLocation"));
30     soft.InstallLocation.Trim();
31 
32     soft.is64 = is64;
33 
34     CString parent_name = reg.ReadString(_T("ParentDisplayName"));
35     CString parent_key = reg.ReadString(_T("ParentKeyName"));
36 
37     int SystemComponent = 0;                   //系统组件
38     reg.ReadInt(_T("SystemComponent"),SystemComponent);
39 
40 
41     if(soft.DisplayName.GetLength() == 0)
42         return;
43 
44     if(parent_name.GetLength() != 0 || parent_key.GetLength() != 0)
45         return;
46 
47     if(SystemComponent)
48         return;
49 
50     //  查找重名；
51     for(int i=0;i<(int)lst.size();i++)
52     {
53         if(lst[i].DisplayName == soft.DisplayName)
54             return;
55     }
56 
57     //加入数组
58     lst.push_back(soft); 
59 }