X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2dc7764675dcf5166731f0172bc2fb6284a427ea..1c8e5c51f8a0a547a5183b1443d3ba059b65ce69:/include/wx/msw/registry.h diff --git a/include/wx/msw/registry.h b/include/wx/msw/registry.h index 23b507744f..5ef5411264 100644 --- a/include/wx/msw/registry.h +++ b/include/wx/msw/registry.h @@ -1,38 +1,28 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: msw/registry.h +// Name: wx/msw/registry.h // Purpose: Registry classes and functions // Author: Vadim Zeitlin -// Modified by: -// Created: 03.04.198 +// Modified by: +// Created: 03.04.1998 // RCS-ID: $Id$ // Copyright: (c) 1998 Vadim Zeitlin -// Licence: wxWindows license +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// -#ifndef _REGISTRY_H -#define _REGISTRY_H +#ifndef _WX_MSW_REGISTRY_H_ +#define _WX_MSW_REGISTRY_H_ -// ---------------------------------------------------------------------------- -// mutable hack (see also registry.cpp) -// ---------------------------------------------------------------------------- -#if USE_MUTABLE - #define MUTABLE mutable -#else - #define MUTABLE -#endif +#include "wx/defs.h" -// ---------------------------------------------------------------------------- -// forward decl for handle type -// ---------------------------------------------------------------------------- -#ifndef HKEY_DEFINED - #define HKEY_DEFINED - #define HKEY unsigned long -#endif +#if wxUSE_REGKEY + +class WXDLLIMPEXP_FWD_BASE wxOutputStream; // ---------------------------------------------------------------------------- // class wxRegKey encapsulates window HKEY handle // ---------------------------------------------------------------------------- -class WXDLLEXPORT wxRegKey + +class WXDLLIMPEXP_BASE wxRegKey { public: // NB: do _not_ change the values of elements in these enumerations! @@ -42,46 +32,49 @@ public: { Type_None, // No value type Type_String, // Unicode nul terminated string -#ifdef __WIN32__ Type_Expand_String, // Unicode nul terminated string // (with environment variable references) Type_Binary, // Free form binary Type_Dword, // 32-bit number - Type_Dword_little_endian, // 32-bit number (same as Type_DWORD) + Type_Dword_little_endian // 32-bit number + = Type_Dword, // (same as Type_DWORD) Type_Dword_big_endian, // 32-bit number Type_Link, // Symbolic Link (unicode) Type_Multi_String, // Multiple Unicode strings Type_Resource_list, // Resource list in the resource map Type_Full_resource_descriptor, // Resource list in the hardware description - Type_Resource_requirements_list, // ??? -#endif //WIN32 + Type_Resource_requirements_list // ??? }; // predefined registry keys enum StdKey { - HKCR, // classes root -#ifdef __WIN32__ - HKCU, // current user - HKLM, // local machine - HKUSR, // users - HKPD, // performance data (@@ NT only?) -#if WINVER >= 0x0400 - HKCC, // current config - HKDD, // dynamic data -#endif // Winver -#endif // Win32/16 + HKCR, // classes root + HKCU, // current user + HKLM, // local machine + HKUSR, // users + HKPD, // performance data (WinNT/2K only) + HKCC, // current config + HKDD, // dynamic data (Win95/98 only) + HKMAX + }; + + // access mode for the key + enum AccessMode + { + Read, // read-only + Write // read and write }; // information about standard (predefined) registry keys // number of standard keys static const size_t nStdKeys; // get the name of a standard key - static const char *GetStdKeyName(uint key); + static const wxChar *GetStdKeyName(size_t key); // get the short name of a standard key - static const char *GetStdKeyShortName(uint key); + static const wxChar *GetStdKeyShortName(size_t key); // get StdKey from root HKEY - static StdKey GetStdKeyFromHkey(HKEY hkey); + static StdKey GetStdKeyFromHkey(WXHKEY hkey); // extacts the std key prefix from the string (return value) and // leaves only the part after it (i.e. modifies the string passed!) @@ -96,7 +89,7 @@ public: wxRegKey(StdKey keyParent, const wxString& strKey); // strKey is the name of key under (previously created) keyParent wxRegKey(const wxRegKey& keyParent, const wxString& strKey); - // + // dtor closes the key ~wxRegKey(); // change key (closes the previously opened key if any) @@ -107,24 +100,42 @@ public: // the name is relative to the parent key void SetName(const wxRegKey& keyParent, const wxString& strKey); // hKey should be opened and will be closed in wxRegKey dtor - void SetHkey(HKEY hKey); + void SetHkey(WXHKEY hKey); // get infomation about the key // get the (full) key name. Abbreviate std root keys if bShortPrefix. wxString GetName(bool bShortPrefix = true) const; // return true if the key exists - bool Exists() const; + bool Exists() const; + // get the info about key (any number of these pointers may be NULL) + bool GetKeyInfo(size_t *pnSubKeys, // number of subkeys + size_t *pnMaxKeyLen, // max len of subkey name + size_t *pnValues, // number of values + size_t *pnMaxValueLen) const; // return true if the key is opened - bool IsOpened() const { return m_hKey != 0; } + bool IsOpened() const { return m_hKey != 0; } // for "if ( !key ) wxLogError(...)" kind of expressions operator bool() const { return m_dwLastError == 0; } // operations on the key itself // explicitly open the key (will be automatically done by all functions // which need the key to be opened if the key is not opened yet) - bool Open(); - // create the key: will fail if the key already exists and bOkIfExists + bool Open(AccessMode mode = Write); + // create the key: will fail if the key already exists and !bOkIfExists bool Create(bool bOkIfExists = true); + // rename a value from old name to new one + bool RenameValue(const wxString& szValueOld, const wxString& szValueNew); + // rename the key + bool Rename(const wxString& szNewName); + // copy value to another key possibly changing its name (by default it will + // remain the same) + bool CopyValue(const wxString& szValue, wxRegKey& keyDst, + const wxString& szNewName = wxEmptyString); + + // copy the entire contents of the key recursively to another location + bool Copy(const wxString& szNewName); + // same as Copy() but using a key and not the name + bool Copy(wxRegKey& keyDst); // close the key (will be automatically done in dtor) bool Close(); @@ -132,42 +143,57 @@ public: // deletes this key and all of it's subkeys/values bool DeleteSelf(); // deletes the subkey with all of it's subkeys/values recursively - bool DeleteKey(const char *szKey); - // deletes the named value (may be NULL to remove the default value) - bool DeleteValue(const char *szValue); + bool DeleteKey(const wxString& szKey); + // deletes the named value (may be empty string to remove the default value) + bool DeleteValue(const wxString& szValue); // access to values and subkeys // get value type - ValueType GetValueType(const char *szValue); + ValueType GetValueType(const wxString& szValue) const; + // returns true if the value contains a number (else it's some string) + bool IsNumericValue(const wxString& szValue) const; // assignment operators set the default value of the key wxRegKey& operator=(const wxString& strValue) - { SetValue(NULL, strValue); return *this; } - wxRegKey& operator=(long lValue) - { SetValue(NULL, lValue); return *this; } + { SetValue(wxEmptyString, strValue); return *this; } - // conversion operators query the default value of the key - operator wxString() const; + // query the default value of the key: implicitly or explicitly + wxString QueryDefaultValue() const; + operator wxString() const { return QueryDefaultValue(); } + + // named values // set the string value - bool SetValue(const char *szValue, const wxString& strValue); - // return the string value - bool QueryValue(const char *szValue, wxString& strValue) const; + bool SetValue(const wxString& szValue, const wxString& strValue); + // retrieve the string value + bool QueryValue(const wxString& szValue, wxString& strValue) const + { return QueryValue(szValue, strValue, false); } + // retrieve raw string value + bool QueryRawValue(const wxString& szValue, wxString& strValue) const + { return QueryValue(szValue, strValue, true); } + // retrieve either raw or expanded string value + bool QueryValue(const wxString& szValue, wxString& strValue, bool raw) const; -#ifdef __WIN32__ // set the numeric value - bool SetValue(const char *szValue, long lValue); + bool SetValue(const wxString& szValue, long lValue); // return the numeric value - bool QueryValue(const char *szValue, long *plValue) const; -#endif //Win32 + bool QueryValue(const wxString& szValue, long *plValue) const; + // set the binary value + bool SetValue(const wxString& szValue, const wxMemoryBuffer& buf); + // return the binary value + bool QueryValue(const wxString& szValue, wxMemoryBuffer& buf) const; // query existence of a key/value // return true if value exists - bool HasValue(const char *szKey) const; + bool HasValue(const wxString& szKey) const; // return true if given subkey exists - bool HasSubKey(const char *szKey) const; + bool HasSubKey(const wxString& szKey) const; // return true if any subkeys exist - bool HasSubkeys() const; + bool HasSubkeys() const; + // return true if any values exist + bool HasValues() const; + // return true if the key is empty (nothing under this key) + bool IsEmpty() const { return !HasSubkeys() && !HasValues(); } // enumerate values and subkeys bool GetFirstValue(wxString& strValueName, long& lIndex); @@ -176,17 +202,51 @@ public: bool GetFirstKey (wxString& strKeyName , long& lIndex); bool GetNextKey (wxString& strKeyName , long& lIndex) const; + // export the contents of this key and all its subkeys to the given file + // (which won't be overwritten, it's an error if it already exists) + // + // note that we export the key in REGEDIT4 format, not RegSaveKey() binary + // format nor newer REGEDIT5 one + bool Export(const wxString& filename) const; + + // same as above but write to the given (opened) stream + bool Export(wxOutputStream& ostr) const; + + + // for wxRegConfig usage only: preallocate some memory for the name + void ReserveMemoryForName(size_t bytes) { m_strKey.reserve(bytes); } + private: - // no copy ctor/assignment operator - wxRegKey(const wxRegKey& key); // not implemented - wxRegKey& operator=(const wxRegKey& key); // not implemented + // common part of all ctors + void Init() + { + m_hKey = (WXHKEY) NULL; + m_dwLastError = 0; + } + + // recursive helper for Export() + bool DoExport(wxOutputStream& ostr) const; + + // export a single value + bool DoExportValue(wxOutputStream& ostr, const wxString& name) const; - HKEY m_hKey, // our handle + // return the text representation (in REGEDIT4 format) of the value with the + // given name + wxString FormatValue(const wxString& name) const; + + + WXHKEY m_hKey, // our handle m_hRootKey; // handle of the top key (i.e. StdKey) wxString m_strKey; // key name (relative to m_hRootKey) - MUTABLE long m_dwLastError; // last error (0 if none) + AccessMode m_mode; // valid only if key is opened + long m_dwLastError; // last error (0 if none) + + + DECLARE_NO_COPY_CLASS(wxRegKey) }; -#endif //_REGISTRY_H +#endif // wxUSE_REGKEY + +#endif // _WX_MSW_REGISTRY_H_