// Name: msw/registry.h
// Purpose: interface of wxRegKey
// Author: wxWidgets team
-// RCS-ID: $Id$
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
/**
@class wxRegKey
- @wxheader{msw/registry.h}
wxRegKey is a class representing the Windows registry (it is only available
under Windows). One can create, query and delete registry keys using this
@onlyfor{wxmsw}
- @library{wxbase}
- @category{misc}
-
@b Example:
@code
- wxRegKey *key = new wxRegKey("HKEY_LOCAL_MACHINE\\Software\\MyKey");
-
- // Create the key if it does not exist.
- if( !key->Exists() )
- key->Create();
+ // This assume that the key already exists, use HasSubKey() to check
+ // for the key existence if necessary.
+ wxRegKey key(wxRegKey::HKLM, "Software\\MyKey");
- // Create a new value "MYVALUE" and set it to 12.
- key->SetValue("MYVALUE", 12);
+ // Create a new value "MyValue" and set it to 12.
+ key.SetValue("MyValue", 12);
// Read the value back.
long value;
- key->QueryValue("MYVALUE", &value);
+ key.QueryValue("MyValue", &value);
wxMessageBox(wxString::Format("%d", value), "Registry Value", wxOK);
// Get the number of subkeys and enumerate them.
size_t subkeys;
- key->GetKeyInfo(&subkeys, NULL, NULL, NULL);
+ key.GetKeyInfo(&subkeys, NULL, NULL, NULL);
wxString key_name;
- key->GetFirstKey(key_name, 1);
+ key.GetFirstKey(key_name, 1);
for(int i = 0; i < subkeys; i++)
{
wxMessageBox(key_name, "Subkey Name", wxOK);
- key->GetNextKey(key_name, 1);
+ key.GetNextKey(key_name, 1);
}
@endcode
+
+
+ @library{wxbase}
+ @category{cfg}
*/
class wxRegKey
{
public:
/**
Default constructor, initializes to @c HKEY_CLASSES_ROOT.
+
+ The @a viewMode parameter is new since wxWidgets 2.9.2.
*/
- wxRegKey();
+ wxRegKey(WOW64ViewMode viewMode = WOW64ViewMode_Default);
/**
The constructor to set the full name of the key.
+
+ The @a viewMode parameter is new since wxWidgets 2.9.2.
+ */
+ wxRegKey(const wxString& strKey,
+ WOW64ViewMode viewMode = WOW64ViewMode_Default);
+ /**
+ The constructor to set the full name of the key using one of the
+ standard keys, that is, HKCR, HKCU, HKLM, HKUSR, HKPD, HKCC or HKDD.
+ The @a viewMode parameter is new since wxWidgets 2.9.2.
*/
- wxRegKey(const wxString& strKey);
+ wxRegKey(StdKey keyParent, const wxString& strKey,
+ WOW64ViewMode viewMode = WOW64ViewMode_Default);
/**
- The constructor to set the full name of the key under a previously created
- parent.
+ The constructor to set the full name of the key under a previously
+ created parent. The registry view is inherited from the parent.
*/
wxRegKey(const wxRegKey& keyParent, const wxString& strKey);
*/
enum AccessMode
{
- Read, ///< Read-only
- Write ///< Read and Write
+ Read, ///< Read-only
+ Write ///< Read and Write
+ };
+
+ /**
+ The standard registry key enumerator.
+ */
+ enum StdKey
+ {
+ HKCR, ///< HKEY_CLASSES_ROOT
+ HKCU, ///< HKEY_CURRENT_USER
+ HKLM, ///< HKEY_LOCAL_MACHINE
+ HKUSR, ///< HKEY_USERS
+ HKPD, ///< HKEY_PERFORMANCE_DATA (Windows NT and 2K only)
+ HKCC, ///< HKEY_CURRENT_CONFIG
+ HKDD, ///< HKEY_DYN_DATA (Windows 95 and 98 only)
+ HKMAX
+ };
+
+ /**
+ The value type enumerator.
+ */
+ enum ValueType
+ {
+ Type_None, ///< No value type
+ Type_String, ///< Unicode null-terminated string
+ Type_Expand_String, ///< Unicode null-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_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 ///<
+ };
+
+ /**
+ Used to determine how the registry will be viewed, either as
+ 32-bit or 64-bit.
+
+ @since 2.9.2
+ */
+ enum WOW64ViewMode
+ {
+ /**
+ Uses 32-bit registry for 32-bit applications and
+ 64-bit registry for 64-bit ones.
+ */
+ WOW64ViewMode_Default,
+
+ /**
+ Can be used in 64-bit apps to access the 32-bit registry,
+ has no effect (i.e. treated as default) in 32-bit apps.
+ */
+ WOW64ViewMode_32,
+
+ /**
+ Can be used in 32-bit apps to access the 64-bit registry,
+ has no effect (i.e. treated as default) in 64-bit apps.
+ */
+ WOW64ViewMode_64
};
/**
void Close();
/**
- Creates the key. Will fail if the key already exists and @a bOkIfExists is
- @false.
+ Copy the entire contents of the key recursively to another location
+ using the name. Returns @true if successful.
+ */
+ bool Copy(const wxString& szNewName);
+ /**
+ Copy the entire contents of the key recursively to another location
+ using the key. Returns @true if successful.
+ */
+ bool Copy(wxRegKey& keyDst);
+
+ /**
+ Copy the value to another key, possibly changing its name. By default
+ it will remain the same. Returns @true if successful.
+ */
+ bool CopyValue(const wxString& szValue, wxRegKey& keyDst,
+ const wxString& szNewName = wxEmptyString);
+ /**
+ Creates the key. Will fail if the key already exists and @a bOkIfExists
+ is @false. Returns @true if successful.
*/
bool Create(bool bOkIfExists = true);
/**
- Deletes the subkey with all of its subkeys/values recursively.
+ Deletes the subkey with all its subkeys and values recursively.
*/
- void DeleteKey(const wxChar* szKey);
+ void DeleteKey(const wxString& szKey);
/**
- Deletes this key and all of its subkeys and values recursively.
+ Deletes this key and all its subkeys and values recursively.
*/
void DeleteSelf();
/**
- Deletes the named value.
+ Deletes the named value or use an empty string argument to remove the
+ default value of the key.
*/
- void DeleteValue(const wxChar* szKey);
+ void DeleteValue(const wxString& szKey);
/**
Returns @true if the key exists.
bool Exists() const;
/**
- Gets the first key.
+ Write the contents of this key and all its subkeys to the given file.
+ (The file will not be overwritten; it's an error if it already exists.)
+ Note that we export the key in REGEDIT4 format, not RegSaveKey() binary
+ format nor the newer REGEDIT5. Returns @true if successful.
+ */
+ bool Export(const wxString& filename) const;
+ /**
+ Write the contents of this key and all its subkeys to the opened stream.
+ Returns @true if successful.
+ */
+ bool Export(wxOutputStream& ostr) const;
+
+ /**
+ Gets the first key. Returns @true if successful.
*/
bool GetFirstKey(wxString& strKeyName, long& lIndex);
/**
- Gets the first value of this key.
+ Gets the first value of this key. Returns @true if successful.
*/
bool GetFirstValue(wxString& strValueName, long& lIndex);
/**
- Gets information about the key.
+ Gets information about the key. Returns @true if successful.
@param pnSubKeys
The number of subkeys.
wxString GetName(bool bShortPrefix = true) const;
/**
- Gets the next key.
+ Retrieves the registry view used by this key.
+
+ @since 2.9.2
+
+ @return The registry view given at the object's construction.
+ */
+ WOW64ViewMode GetView() const { return m_viewMode; }
+
+ /**
+ Gets the next key. Returns @true if successful.
*/
bool GetNextKey(wxString& strKeyName, long& lIndex) const;
/**
- Gets the next key value for this key.
+ Gets the next key value for this key. Returns @true if successful.
*/
bool GetNextValue(wxString& strValueName, long& lIndex) const;
+ /**
+ Gets the value type.
+ */
+ ValueType GetValueType(const wxString& szValue) const;
+
/**
Returns @true if given subkey exists.
*/
- bool HasSubKey(const wxChar* szKey) const;
+ bool HasSubKey(const wxString& szKey) const;
/**
Returns @true if any subkeys exist.
*/
- bool HasSubKeys() const;
+ bool HasSubkeys() const;
/**
Returns @true if the value exists.
*/
- bool HasValue(const wxChar* szValue) const;
+ bool HasValue(const wxString& szValue) const;
/**
Returns @true if any values exist.
*/
bool IsEmpty() const;
+ /**
+ Returns @true if the value contains a number.
+ */
+ bool IsNumericValue(const wxString& szValue) const;
+
/**
Returns @true if the key is opened.
*/
bool IsOpened() const;
/**
- Explicitly opens the key. This method also allows the key to be opened in
- read-only mode by passing wxRegKey::Read instead of default
- wxRegKey::Write parameter.
+ Explicitly opens the key. This method also allows the key to be opened
+ in read-only mode by passing wxRegKey::Read instead of default
+ wxRegKey::Write parameter. Returns @true if successful.
*/
bool Open(AccessMode mode = Write);
/**
- Retrieves the string value.
+ Assignment operator to set the default value of the key.
+ */
+ wxRegKey& operator=(const wxString& strValue);
+
+ /**
+ Return the default value of the key.
*/
- bool QueryValue(const wxChar* szValue, wxString& strValue) const;
+ wxString QueryDefaultValue() const;
/**
- Retrieves the numeric value.
+ Retrieves the raw string value. Returns @true if successful.
+ An empty @a szValue queries the default/unnamed key value.
*/
- const bool QueryValue(const wxChar* szValue, long* plValue) const;
+ bool QueryRawValue(const wxString& szValue, wxString& strValue) const;
/**
- Renames the key.
+ Retrieves the raw or expanded string value. Returns @true if successful.
+ An empty @a szValue queries the default/unnamed key value.
*/
- bool Rename(const wxChar* szNewName);
+ bool QueryValue(const wxString& szValue, wxString& strValue, bool raw) const;
/**
- Renames a value.
+ Retrieves the numeric value. Returns @true if successful.
+ An empty @a szValue queries the default/unnamed key value.
+ */
+ bool QueryValue(const wxString& szValue, long* plValue) const;
+
+ /**
+ Retrieves the binary structure. Returns @true if successful.
+ An empty @a szValue queries the default/unnamed key value.
+ */
+ bool QueryValue(const wxString& szValue, wxMemoryBuffer& buf) const;
+
+ /**
+ Renames the key. Returns @true if successful.
+ */
+ bool Rename(const wxString& szNewName);
+
+ /**
+ Renames a value. Returns @true if successful.
+ */
+ bool RenameValue(const wxString& szValueOld,
+ const wxString& szValueNew);
+
+ /**
+ Preallocate some memory for the name. For wxRegConfig usage only.
+ */
+ void ReserveMemoryForName(size_t bytes);
+
+ /**
+ Set or change the HKEY handle.
+ */
+ void SetHkey(WXHKEY hKey);
+
+ /**
+ Set the full key name. The name is absolute. It should start with
+ HKEY_xxx.
+ */
+ void SetName(const wxString& strKey);
+ /**
+ Set the name relative to the parent key
+ */
+ void SetName(StdKey keyParent, const wxString& strKey);
+ /**
+ Set the name relative to the parent key
*/
- bool RenameValue(const wxChar* szValueOld,
- const wxChar* szValueNew);
+ void SetName(const wxRegKey& keyParent, const wxString& strKey);
/**
- Sets the given @a szValue which must be numeric.
- If the value doesn't exist, it is created.
+ Sets the given @a szValue which must be numeric. If the value doesn't
+ exist, it is created. Returns @true if successful.
+ An empty @a szValue sets the default/unnamed key value.
*/
- bool SetValue(const wxChar* szValue, long lValue);
+ bool SetValue(const wxString& szValue, long lValue);
/**
- Sets the given @a szValue which must be string.
- If the value doesn't exist, it is created.
+ Sets the given @a szValue which must be string. If the value doesn't
+ exist, it is created. Returns @true if successful.
+ An empty @a szValue sets the default/unnamed key value.
*/
- bool SetValue(const wxChar* szValue, const wxString& strValue);
+ bool SetValue(const wxString& szValue, const wxString& strValue);
/**
- Sets the given @a szValue which must be binary.
- If the value doesn't exist, it is created.
+ Sets the given @a szValue which must be binary. If the value doesn't
+ exist, it is created. Returns @true if successful.
+ An empty @a szValue sets the default/unnamed key value.
*/
- bool SetValue(const wxChar* szValue, const wxMemoryBuffer& buf);
+ bool SetValue(const wxString& szValue, const wxMemoryBuffer& buf);
};
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