先給一個注冊表操作的封裝類：
下載轉：
http://www.codeproject.com/KB/system/installed_programs.aspx從HKEY_LOCAL_MACHINE Software\\Microsoft\\Windows\\CurrentVersion\\Uninstall 下依次讀取所有的DisplayName
#define IS_KEY _T("Software\\Microsoft\\Windows\\CurrentVersion\\Uninstall")
#define IS_KEY_LEN 256
#define IS_DISPLAY _T("DisplayName")// Build a list of installed applications by enumerating
// HKLM\Software\Microsoft\Windows\CurrentVersion\Uninstall
// and fetching "DisplayName" entry
HKEY hKey;
if (::RegOpenKeyEx(HKEY_LOCAL_MACHINE, IS_KEY, 0, KEY_READ, &hKey) != ERROR_SUCCESS)
return;
DWORD dwIndex = 0;
LONG lRet;
DWORD cbName = IS_KEY_LEN;
TCHAR szSubKeyName[IS_KEY_LEN];
while ((lRet = ::RegEnumKeyEx(hKey, dwIndex, szSubKeyName, &cbName, NULL,
NULL, NULL, NULL)) != ERROR_NO_MORE_ITEMS)
{
// Do we have a key to open?
if (lRet == ERROR_SUCCESS)
{
// Open the key and get the value
HKEY hItem;
if (::RegOpenKeyEx(hKey, szSubKeyName, 0, KEY_READ, &hItem) != ERROR_SUCCESS)
continue;
// Opened - look for "DisplayName"
TCHAR szDisplayName[IS_KEY_LEN];
DWORD dwSize = sizeof(szDisplayName);
DWORD dwType;
if (::RegQueryValueEx(hItem, IS_DISPLAY, NULL, &dwType,
(LPBYTE)&szDisplayName, &dwSize) == ERROR_SUCCESS)
{
// Add to the main array
m_aPrograms.Add(szDisplayName);
}
::RegCloseKey(hItem);
}
dwIndex++;
cbName = IS_KEY_LEN;
}
::RegCloseKey(hKey);
}
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posted on 2009-05-22 11:30
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