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// Windows/Registry.cpp
#include "StdAfx.h"
#ifndef _UNICODE
#include "Common/StringConvert.h"
#endif
#include "Windows/Registry.h"
#ifndef _UNICODE
extern bool g_IsNT;
#endif
namespace NWindows {
namespace NRegistry {
#define MYASSERT(expr) // _ASSERTE(expr)
CKey::~CKey()
{
Close();
}
HKEY CKey::Detach()
{
HKEY hKey = _object;
_object = NULL;
return hKey;
}
void CKey::Attach(HKEY hKey)
{
MYASSERT(_object == NULL);
_object = hKey;
}
LONG CKey::Create(HKEY parentKey, LPCTSTR keyName,
LPTSTR keyClass, DWORD options, REGSAM accessMask,
LPSECURITY_ATTRIBUTES securityAttributes, LPDWORD disposition)
{
MYASSERT(parentKey != NULL);
DWORD dispositionReal;
HKEY key = NULL;
LONG res = RegCreateKeyEx(parentKey, keyName, 0, keyClass,
options, accessMask, securityAttributes, &key, &dispositionReal);
if (disposition != NULL)
*disposition = dispositionReal;
if (res == ERROR_SUCCESS)
{
res = Close();
_object = key;
}
return res;
}
LONG CKey::Open(HKEY parentKey, LPCTSTR keyName, REGSAM accessMask)
{
MYASSERT(parentKey != NULL);
HKEY key = NULL;
LONG res = RegOpenKeyEx(parentKey, keyName, 0, accessMask, &key);
if (res == ERROR_SUCCESS)
{
res = Close();
MYASSERT(res == ERROR_SUCCESS);
_object = key;
}
return res;
}
LONG CKey::Close()
{
LONG res = ERROR_SUCCESS;
if (_object != NULL)
{
res = RegCloseKey(_object);
_object = NULL;
}
return res;
}
// win95, win98: deletes sunkey and all its subkeys
// winNT to be deleted must not have subkeys
LONG CKey::DeleteSubKey(LPCTSTR subKeyName)
{
MYASSERT(_object != NULL);
return RegDeleteKey(_object, subKeyName);
}
LONG CKey::RecurseDeleteKey(LPCTSTR subKeyName)
{
CKey key;
LONG res = key.Open(_object, subKeyName, KEY_READ | KEY_WRITE);
if (res != ERROR_SUCCESS)
return res;
FILETIME fileTime;
const UInt32 kBufferSize = MAX_PATH + 1; // 256 in ATL
DWORD size = kBufferSize;
TCHAR buffer[kBufferSize];
while (RegEnumKeyEx(key._object, 0, buffer, &size, NULL, NULL, NULL, &fileTime) == ERROR_SUCCESS)
{
res = key.RecurseDeleteKey(buffer);
if (res != ERROR_SUCCESS)
return res;
size = kBufferSize;
}
key.Close();
return DeleteSubKey(subKeyName);
}
/////////////////////////
// Value Functions
static inline UInt32 BoolToUINT32(bool value) { return (value ? 1: 0); }
static inline bool UINT32ToBool(UInt32 value) { return (value != 0); }
LONG CKey::DeleteValue(LPCTSTR name)
{
MYASSERT(_object != NULL);
return ::RegDeleteValue(_object, name);
}
#ifndef _UNICODE
LONG CKey::DeleteValue(LPCWSTR name)
{
MYASSERT(_object != NULL);
if (g_IsNT)
return ::RegDeleteValueW(_object, name);
return DeleteValue(name == 0 ? 0 : (LPCSTR)GetSystemString(name));
}
#endif
LONG CKey::SetValue(LPCTSTR name, UInt32 value)
{
MYASSERT(_object != NULL);
return RegSetValueEx(_object, name, NULL, REG_DWORD,
(BYTE * const)&value, sizeof(UInt32));
}
LONG CKey::SetValue(LPCTSTR name, bool value)
{
return SetValue(name, BoolToUINT32(value));
}
LONG CKey::SetValue(LPCTSTR name, LPCTSTR value)
{
MYASSERT(value != NULL);
MYASSERT(_object != NULL);
return RegSetValueEx(_object, name, NULL, REG_SZ,
(const BYTE * )value, (lstrlen(value) + 1) * sizeof(TCHAR));
}
/*
LONG CKey::SetValue(LPCTSTR name, const CSysString &value)
{
MYASSERT(value != NULL);
MYASSERT(_object != NULL);
return RegSetValueEx(_object, name, NULL, REG_SZ,
(const BYTE *)(const TCHAR *)value, (value.Length() + 1) * sizeof(TCHAR));
}
*/
#ifndef _UNICODE
LONG CKey::SetValue(LPCWSTR name, LPCWSTR value)
{
MYASSERT(value != NULL);
MYASSERT(_object != NULL);
if (g_IsNT)
return RegSetValueExW(_object, name, NULL, REG_SZ,
(const BYTE * )value, (DWORD)((wcslen(value) + 1) * sizeof(wchar_t)));
return SetValue(name == 0 ? 0 : (LPCSTR)GetSystemString(name),
value == 0 ? 0 : (LPCSTR)GetSystemString(value));
}
#endif
LONG CKey::SetValue(LPCTSTR name, const void *value, UInt32 size)
{
MYASSERT(value != NULL);
MYASSERT(_object != NULL);
return RegSetValueEx(_object, name, NULL, REG_BINARY,
(const BYTE *)value, size);
}
LONG SetValue(HKEY parentKey, LPCTSTR keyName, LPCTSTR valueName, LPCTSTR value)
{
MYASSERT(value != NULL);
CKey key;
LONG res = key.Create(parentKey, keyName);
if (res == ERROR_SUCCESS)
res = key.SetValue(valueName, value);
return res;
}
LONG CKey::SetKeyValue(LPCTSTR keyName, LPCTSTR valueName, LPCTSTR value)
{
MYASSERT(value != NULL);
CKey key;
LONG res = key.Create(_object, keyName);
if (res == ERROR_SUCCESS)
res = key.SetValue(valueName, value);
return res;
}
LONG CKey::QueryValue(LPCTSTR name, UInt32 &value)
{
DWORD type = NULL;
DWORD count = sizeof(DWORD);
LONG res = RegQueryValueEx(_object, (LPTSTR)name, NULL, &type,
(LPBYTE)&value, &count);
MYASSERT((res!=ERROR_SUCCESS) || (type == REG_DWORD));
MYASSERT((res!=ERROR_SUCCESS) || (count == sizeof(UInt32)));
return res;
}
LONG CKey::QueryValue(LPCTSTR name, bool &value)
{
UInt32 uintValue = BoolToUINT32(value);
LONG res = QueryValue(name, uintValue);
value = UINT32ToBool(uintValue);
return res;
}
LONG CKey::QueryValue(LPCTSTR name, LPTSTR value, UInt32 &count)
{
MYASSERT(count != NULL);
DWORD type = NULL;
LONG res = RegQueryValueEx(_object, (LPTSTR)name, NULL, &type, (LPBYTE)value, (DWORD *)&count);
MYASSERT((res!=ERROR_SUCCESS) || (type == REG_SZ) || (type == REG_MULTI_SZ) || (type == REG_EXPAND_SZ));
return res;
}
LONG CKey::QueryValue(LPCTSTR name, CSysString &value)
{
value.Empty();
DWORD type = NULL;
UInt32 currentSize = 0;
LONG res = RegQueryValueEx(_object, (LPTSTR)name, NULL, &type, NULL, (DWORD *)¤tSize);
if (res != ERROR_SUCCESS && res != ERROR_MORE_DATA)
return res;
res = QueryValue(name, value.GetBuffer(currentSize), currentSize);
value.ReleaseBuffer();
return res;
}
#ifndef _UNICODE
LONG CKey::QueryValue(LPCWSTR name, LPWSTR value, UInt32 &count)
{
MYASSERT(count != NULL);
DWORD type = NULL;
LONG res = RegQueryValueExW(_object, name, NULL, &type, (LPBYTE)value, (DWORD *)&count);
MYASSERT((res!=ERROR_SUCCESS) || (type == REG_SZ) || (type == REG_MULTI_SZ) || (type == REG_EXPAND_SZ));
return res;
}
LONG CKey::QueryValue(LPCWSTR name, UString &value)
{
value.Empty();
DWORD type = NULL;
UInt32 currentSize = 0;
LONG res;
if (g_IsNT)
{
res = RegQueryValueExW(_object, name, NULL, &type, NULL, (DWORD *)¤tSize);
if (res != ERROR_SUCCESS && res != ERROR_MORE_DATA)
return res;
res = QueryValue(name, value.GetBuffer(currentSize), currentSize);
value.ReleaseBuffer();
}
else
{
AString vTemp;
res = QueryValue(name == 0 ? 0 : (LPCSTR)GetSystemString(name), vTemp);
value = GetUnicodeString(vTemp);
}
return res;
}
#endif
LONG CKey::QueryValue(LPCTSTR name, void *value, UInt32 &count)
{
DWORD type = NULL;
LONG res = RegQueryValueEx(_object, (LPTSTR)name, NULL, &type, (LPBYTE)value, (DWORD *)&count);
MYASSERT((res!=ERROR_SUCCESS) || (type == REG_BINARY));
return res;
}
LONG CKey::QueryValue(LPCTSTR name, CByteBuffer &value, UInt32 &dataSize)
{
DWORD type = NULL;
dataSize = 0;
LONG res = RegQueryValueEx(_object, (LPTSTR)name, NULL, &type, NULL, (DWORD *)&dataSize);
if (res != ERROR_SUCCESS && res != ERROR_MORE_DATA)
return res;
value.SetCapacity(dataSize);
return QueryValue(name, (BYTE *)value, dataSize);
}
LONG CKey::EnumKeys(CSysStringVector &keyNames)
{
keyNames.Clear();
CSysString keyName;
for (UInt32 index = 0; ; index++)
{
const UInt32 kBufferSize = MAX_PATH + 1; // 256 in ATL
FILETIME lastWriteTime;
UInt32 nameSize = kBufferSize;
LONG result = ::RegEnumKeyEx(_object, index, keyName.GetBuffer(kBufferSize),
(DWORD *)&nameSize, NULL, NULL, NULL, &lastWriteTime);
keyName.ReleaseBuffer();
if (result == ERROR_NO_MORE_ITEMS)
break;
if (result != ERROR_SUCCESS)
return result;
keyNames.Add(keyName);
}
return ERROR_SUCCESS;
}
}}
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