reactos/rosapps/sysutils/regexpl/RegistryTree.h

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/* $Id: RegistryTree.h,v 1.2 2001/01/10 01:25:29 narnaoud Exp $ */
// RegistryTree.h: interface for the CRegistryTree class.
//
//////////////////////////////////////////////////////////////////////
#if !defined(REGISTRYTREE_H__239A6461_70F2_11D3_9085_204C4F4F5020__INCLUDED_)
#define REGISTRYTREE_H__239A6461_70F2_11D3_9085_204C4F4F5020__INCLUDED_
#include "RegistryKey.h"
// Max size of error description.
#define ERROR_MSG_BUFFER_SIZE 1024
class CRegistryTree
{
public:
// Constructor
//
// Parameters:
// nMaxPathSize - size in characters of longest path including terminating NULL char
CRegistryTree();
// Destructor
virtual ~CRegistryTree();
// Call this function after fail of this class method.
//
// Return value:
// Pointer to buffer containing description of last error.
// return value is valid until next method of this class is called.
const TCHAR * GetLastErrorDescription();
// Call this function to get string representation (path) of current key.
//
// Return value:
// Pointer to buffer containing current key path. The pointer is valid until next call to this objet method.
const TCHAR * GetCurrentPath() const;
// Call this function to check if current key is the root key.
//
// Return value:
// FALSE - current key is not the root key.
// TRUE - current key is the root key.
BOOL IsCurrentRoot();
// Call this function to change the current key.
//
// Parameters:
// pchRelativePath - relative path to target key.
//
// Return value:
// TRUE - current key changed successfully.
// FALSE - failed to change current key. Call GetLastErrorDescription() to get error description.
BOOL ChangeCurrentKey(const TCHAR *pchRelativePath);
// Call this function to obtain key at relative path and opened with desired access.
//
// Parametes:
// pchRelativePath - path to key to be opened.
// DesiredAccess - desired access to key.
// rKey - reference to variable that receives pointer to key. Caller must free object with delete operator, when object is not longer needed.
//
// Return value:
// TRUE - key opened successfully.
// FALSE - failed to open desired key path size. Call GetLastErrorDescription() to get error description.
BOOL GetKey(const TCHAR *pchRelativePath, REGSAM DesiredAccess, CRegistryKey& rKey);
// Call this function to delete key subkeys.
//
// Parameters:
// pszKeyPattern - pattern to specifying which subkeys to delete.
// pszPath - path to key which subkeys will be deleted.
// blnRecursive - if FALSE and particular subkey has subkeys, it will not be deleted.
//
// Return value:
// TRUE - key opened successfully.
// FALSE - error. Call GetLastErrorDescription() to get error description.
BOOL DeleteSubkeys(const TCHAR *pszKeyPattern, const TCHAR *pszPath, BOOL blnRecursive = FALSE);
BOOL NewKey(const TCHAR *pszKeyName, const TCHAR *pszPath, BOOL blnVolatile = FALSE);
BOOL SetMachineName(LPCTSTR pszMachineName);
// Internal methods
private:
CRegistryTree(const CRegistryTree& Tree);
// returns description of error value returned by RegXXXX functions in advapi32.
const TCHAR *GetErrorDescription(LONG nError);
void SetError(LONG nError);
void SetError(const TCHAR *pszFormat, ...);
void SetErrorCommandNAOnRoot(const TCHAR *pszCommand);
void SetInternalError();
void AddErrorDescription(const TCHAR *pszFormat, ...);
BOOL InternalChangeCurrentKey(const TCHAR *pszSubkeyName, REGSAM DesiredAccess);
BOOL InternalGetSubkey(const TCHAR *pszSubkeyName, REGSAM DesiredAccess, CRegistryKey& rKey);
void GotoRoot();
BOOL DeleteSubkeys(CRegistryKey& rKey, const TCHAR *pszKeyPattern, BOOL blnRecursive);
private:
class CNode
{
public:
CNode *m_pUp;
CRegistryKey m_Key;
} m_Root;
CNode *m_pCurrentKey; // The current key.
TCHAR m_ErrorMsg[ERROR_MSG_BUFFER_SIZE+1]; // Last error description buffer.
LPTSTR m_pszMachineName; // Pointer to buffer containing machine name with leading backslashes. NULL if local.
};
#endif // !defined(REGISTRYTREE_H__239A6461_70F2_11D3_9085_204C4F4F5020__INCLUDED_)