wxConfigBase class defines the basic interface of all config classes. It can
not be used by itself (it's an abstract base class) and you'll always use one
-of its derivations: \helpref{wxIniConfig}{wxiniconfig},
-\helpref{wxFileConfig}{wxfileconfig}, \helpref{wxRegConfig}{wxregconfig} or
-any other.
+of its derivations: wxIniConfig, wxFileConfig, wxRegConfig or any other.
However, usually you don't even need to know the precise nature of the class
you're working with but you would just use the wxConfigBase methods. This
allows you to write the same code regardless of whether you're working with
the registry under Win32 or text-based config files under Unix (or even
Windows 3.1 .INI files if you're really unlucky). To make writing the portable
-code even easier, wxWindows provides a typedef \helpref{wxConfig}{wxconfig}
+code even easier, wxWindows provides a typedef wxConfig
which is mapped onto the native wxConfigBase implementation on the given
platform: i.e. wxRegConfig under Win32, wxIniConfig under Win16 and
wxFileConfig otherwise.
-See \helpref{config overview}{configoverview} for the descriptions of all
+See \helpref{config overview}{wxconfigoverview} for the descriptions of all
features of this class.
\wxheading{Derived from}
wxConfig *config = new wxConfig("MyAppName");
wxString str;
- if ( config->Read(&str, "LastPrompt") ) {
+ if ( config->Read("LastPrompt", &str) ) {
// last prompt was found in the config file/registry and its value is now
// in str
...
"registry hive" for wxRegConfig and, generally speaking, might mean any
physical storage where a wxConfigBase-derived class stores its data.
-\wxheading{See also}
-
-\helpref{wxIniConfig}{wxiniconfig}, \helpref{wxFileConfig}{wxfileconfig},
-\helpref{wxRegConfig}{wxregconfig}
-
\latexignore{\rtfignore{\wxheading{Function groups}}}
\membersection{Static functions}
-These function deal with the "default" config object. Although its usage is
+These functions deal with the "default" config object. Although its usage is
not at all mandatory it may be convenient to use a global config object
instead of creating and deleting the local config objects each time you need
one (especially because creating a wxFileConfig object might be a time
\membersection{Path management}
-As explained in \helpref{config overview}{configoverview}, the config classes
+As explained in \helpref{config overview}{wxconfigoverview}, the config classes
support a file system-like hierarchy of keys (files) and groups (directories).
As in the file system case, to specify a key in the config class you must use
a path to it. Config classes also support the notion of the current group,
\helpref{HasEntry}{wxconfigbasehasentry}\\
\helpref{Exists}{wxconfigbaseexists}
+\membersection{Miscellaneous accessors}
+
+\helpref{SetAppName}{wxconfigbasesetappname}\\
+\helpref{GetAppName}{wxconfigbasegetappname}\\
+\helpref{SetVendorName}{wxconfigbasesetvendorname}\\
+\helpref{GetVendorName}{wxconfigbasegetvendorname}
+
\membersection{Key access}
These function are the core of wxConfigBase class: they allow you to read and
}}
-\membersection{wxConfigBase::GetFirstGroup}\label{wxconfigbasegetfirstgroup}
+\membersection{wxConfigBase::wxConfigBase}\label{wxconfigbasector}
-\constfunc{bool}{GetFirstGroup}{\param{wxString\& }{str}, \param{long\&}{ index}}
+\func{}{wxConfigBase}{\param{const wxString\& }{appName = wxEmptyString},
+ \param{const wxString\& }{vendorName = wxEmptyString},
+ \param{const wxString\& }{localFilename = wxEmptyString},
+ \param{const wxString\& }{globalFilename = wxEmptyString},
+ \param{long}{ style = 0}}
-\membersection{wxConfigBase::GetNextGroup}\label{wxconfigbasegetnextgroup}
+This is the default and only constructor of the wxConfigBase class, and
+derived classes.
-\constfunc{bool}{GetNextGroup}{\param{wxString\& }{str}, \param{long\&}{ index}}
+\wxheading{Parameters}
-\membersection{wxConfigBase::GetFirstEntry}\label{wxconfigbasegetfirstentry}
+\docparam{appName}{The application name. If this is empty, the class will
+normally use \helpref{wxApp::GetAppName}{wxappgetappname} to set it. The
+application name is used in the registry key on Windows, and can be used to
+deduce the local filename parameter if that is missing.}
-\constfunc{bool}{GetFirstEntry}{\param{wxString\& }{str}, \param{long\&}{ index}}
+\docparam{vendorName}{The vendor name. If this is empty, it is assumed that
+no vendor name is wanted, if this is optional for the current config class.
+The vendor name is appended to the application name for wxRegConfig.}
-\membersection{wxConfigBase::GetNextEntry}\label{wxconfigbasegetnextentry}
+\docparam{localFilename}{Some config classes require a local filename. If this
+is not present, but required, the application name will be used instead.}
-\constfunc{bool}{GetNextEntry}{\param{wxString\& }{str}, \param{long\&}{ index}}
+\docparam{globalFilename}{Some config classes require a global filename. If
+this is not present, but required, the application name will be used instead.}
-See the example above.
+\docparam{style}{Can be one of wxCONFIG\_USE\_LOCAL\_FILE and
+wxCONFIG\_USE\_GLOBAL\_FILE. The style interpretation depends on the config
+class and is ignored by some. For wxFileConfig, these styles determine whether
+a local or global config file is created or used. If the flag is present but
+the parameter is empty, the parameter will be set to a default. If the
+parameter is present but the style flag not, the relevant flag will be added
+to the style.}
-\membersection{wxConfigBase::GetNumberOfEntries}\label{wxconfigbasegetnumberofentries}
+\wxheading{Remarks}
-\constfunc{uint }{GetNumberOfEntries}{\param{bool }{bRecursive = FALSE}}
+By default, environment variable expansion is on and recording defaults is
+off.
-\membersection{wxConfigBase::GetNumberOfGroups}\label{wxconfigbasegetnumberofgroups}
+\membersection{wxConfigBase::\destruct{wxConfigBase}}\label{wxconfigbasedtor}
-\constfunc{uint}{GetNumberOfGroups}{\param{bool }{bRecursive = FALSE}}
+\func{}{\destruct{wxConfigBase}}{\void}
-Get number of entries/subgroups in the current group, with or without
-its subgroups.
+Empty but ensures that dtor of all derived classes is virtual.
-\membersection{wxConfigBase::Set}\label{wxconfigbaseset}
+\membersection{wxConfigBase::Create}\label{wxconfigbasecreate}
-\func{wxConfigBase *}{Set}{\param{wxConfigBase *}{pConfig}}
+\func{static wxConfigBase *}{Create}{\void}
-Sets the config object as the current one, returns the pointer to the previous
-current object (both the parameter and returned value may be NULL)
+Create a new config object: this function will create the "best"
+implementation of wxConfig available for the current platform, see comments
+near the definition of wxCONFIG\_WIN32\_NATIVE for details. It returns the
+created object and also sets it as the current one.
+
+\membersection{wxConfigBase::DontCreateOnDemand}\label{wxconfigbasedontcreateondemand}
+
+\func{void}{DontCreateOnDemand}{\void}
+
+Calling this function will prevent {\it Get()} from automatically creating a
+new config object if the current one is NULL. It might be useful to call it
+near the program end to prevent new config object "accidental" creation.
+
+\membersection{wxConfigBase::DeleteAll}\label{wxconfigbasedeleteall}
+
+\func{bool}{DeleteAll}{\void}
+
+Delete the whole underlying object (disk file, registry key, ...). Primarly
+for use by desinstallation routine.
+
+\membersection{wxConfigBase::DeleteEntry}\label{wxconfigbasedeleteentry}
+
+\func{bool}{DeleteEntry}{\param{const wxString\& }{ key}, \param{bool}{
+bDeleteGroupIfEmpty = TRUE}}
+
+Deletes the specified entry and the group it belongs to if it was the last key
+in it and the second parameter is true.
+
+\membersection{wxConfigBase::DeleteGroup}\label{wxconfigbasedeletegroup}
+
+\func{bool}{DeleteGroup}{\param{const wxString\& }{ key}}
+
+Delete the group (with all subgroups)
+
+\membersection{wxConfigBase::Exists}\label{wxconfigbaseexists}
+
+\constfunc{bool}{Exists}{\param{wxString\& }{strName}}
+
+returns TRUE if either a group or an entry with a given name exists
+
+\membersection{wxConfigBase::Flush}\label{wxconfigbaseflush}
+
+\func{bool}{Flush}{\param{bool }{bCurrentOnly = FALSE}}
+
+permanently writes all changes (otherwise, they're only written from object's
+destructor)
\membersection{wxConfigBase::Get}\label{wxconfigbaseget}
Get the current config object. If there is no current object, creates one
(using {\it Create}) unless DontCreateOnDemand was called previously.
-\membersection{wxConfigBase::Create}\label{wxconfigbasecreate}
+\membersection{wxConfigBase::GetAppName}\label{wxconfigbasegetappname}
-\func{wxConfigBase *}{Create}{\void}
+\constfunc{wxString}{GetAppName}{\void}
-Create a new config object: this function will create the "best"
-implementation of wxConfig available for the current platform, see
-comments near the definition of wxCONFIG\_WIN32\_NATIVE for details. It returns
-the created object and also sets it as the current one.
+Returns the application name.
-\membersection{wxConfigBase::DontCreateOnDemand}\label{wxconfigbasedontcreateondemand}
+\membersection{wxConfigBase::GetFirstGroup}\label{wxconfigbasegetfirstgroup}
-\func{void}{DontCreateOnDemand}{\void}
+\constfunc{bool}{GetFirstGroup}{\param{wxString\& }{str}, \param{long\&}{
+index}}
-Calling this function will prevent {\it Get()} from automatically creating a
-new config object if the current one is NULL. It might be useful to call it
-near the program end to prevent new config object "accidental" creation.
+Gets the first group.
-\membersection{wxConfigBase::wxConfigBase}\label{wxconfigbasector}
+\membersection{wxConfigBase::GetFirstEntry}\label{wxconfigbasegetfirstentry}
-\func{}{wxConfigBase}{\void}
+\constfunc{bool}{GetFirstEntry}{\param{wxString\& }{str}, \param{long\&}{
+index}}
-This is the default and only constructor of wxConfigBase class. It initializes
-it options: by default, environment variable expansion is on and recording
-defaults is off.
+Gets the first entry.
-\membersection{wxConfigBase::\destruct{wxConfigBase}}\label{wxconfigbasedtor}
+\membersection{wxConfigBase::GetNextGroup}\label{wxconfigbasegetnextgroup}
-\func{}{\destruct{wxConfigBase}}{\void}
+\constfunc{bool}{GetNextGroup}{\param{wxString\& }{str}, \param{long\&}{
+index}}
-Empty but ensures that dtor of all derived classes is virtual.
+Gets the next group.
-\membersection{wxConfigBase::SetPath}\label{wxconfigbasesetpath}
+\membersection{wxConfigBase::GetNextEntry}\label{wxconfigbasegetnextentry}
-\func{void}{SetPath}{\param{const wxString\& }{strPath}}
+\constfunc{bool}{GetNextEntry}{\param{wxString\& }{str}, \param{long\&}{
+index}}
-Set current path: if the first character is '/', it's the absolute path,
-otherwise it's a relative path. '..' is supported. If the strPath
-doesn't exist it is created.
+Gets the next entry.
+
+\membersection{wxConfigBase::GetNumberOfEntries}\label{wxconfigbasegetnumberofentries}
+
+\constfunc{uint }{GetNumberOfEntries}{\param{bool }{bRecursive = FALSE}}
+
+\membersection{wxConfigBase::GetNumberOfGroups}\label{wxconfigbasegetnumberofgroups}
+
+\constfunc{uint}{GetNumberOfGroups}{\param{bool }{bRecursive = FALSE}}
+
+Get number of entries/subgroups in the current group, with or without its
+subgroups.
\membersection{wxConfigBase::GetPath}\label{wxconfigbasegetpath}
-\constfunc{const wxString\& }{GetPath}{\void}
+\constfunc{const wxString\&}{GetPath}{\void}
Retrieve the current path (always as absolute path).
-\membersection{wxConfigBase::HasGroup}\label{wxconfigbasehasgroup}
+\membersection{wxConfigBase::GetVendorName}\label{wxconfigbasegetvendorname}
-\constfunc{bool}{HasGroup}{\param{const wxString\& }{strName}}
+\constfunc{wxString}{GetVendorName}{\void}
-returns TRUE if the group by this name exists
+Returns the vendor name.
\membersection{wxConfigBase::HasEntry}\label{wxconfigbasehasentry}
returns TRUE if the entry by this name exists
-\membersection{wxConfigBase::Exists}\label{wxconfigbaseexists}
+\membersection{wxConfigBase::HasGroup}\label{wxconfigbasehasgroup}
-\constfunc{bool}{Exists}{\param{wxString\& }{strName}}
+\constfunc{bool}{HasGroup}{\param{const wxString\& }{strName}}
-returns TRUE if either a group or an entry with a given name exists
+returns TRUE if the group by this name exists
+
+\membersection{wxConfigBase::IsExpandingEnvVars}\label{wxconfigbaseisexpandingenvvars}
+
+\constfunc{bool}{IsExpandingEnvVars}{\void}
+
+Returns TRUE if we are expanding environment variables in key values.
+
+\membersection{wxConfigBase::IsRecordingDefaults}\label{wxconfigbaseisrecordingdefaults}
+
+\func{bool}{IsRecordingDefaults}{\void} const
+
+Returns TRUE if we are writing defaults back to the config file.
\membersection{wxConfigBase::Read}\label{wxconfigbaseread}
-\constfunc{bool}{Read}{\param{wxString *}{pStr}, \param{const char *}{szKey}, \param{const char *}{szDefault = NULL}}
+\constfunc{bool}{Read}{\param{const wxString\& }{key}, \param{wxString*}{
+str}}
-Read a string from the key: returns TRUE if value was really read, FALSE if
-default was used (the default value is returned if the key wasn't found)
+Read a string from the key, returning TRUE if the value was read. If the key
+was not found, {\it str} is not changed.
-\constfunc{const char *}{Read}{\param{const char *}{szKey}, \param{const char *}{szDefault = NULL}}
+\constfunc{bool}{Read}{\param{const wxString\& }{key}, \param{wxString*}{
+str}, \param{const wxString\& }{defaultVal}}
-Another version of {\it Read()} using static buffer.
+Read a string from the key. The default value is returned if the key was not
+found.
-NB: although this function seems more convenient, you should only use it if
-you know what you're doing! As it uses a static buffer, it means it will be
-overwritten after each call to this function! If you do use it, you should
-save the returned value to a wxString as soon as possible.
+Returns TRUE if value was really read, FALSE if the default was used.
-\constfunc{long }{Read}{\param{const char *}{szKey}, \param{long}{ lDefault}}
+\constfunc{wxString}{Read}{\param{const wxString\& }{key}, \param{const
+wxString\& }{defaultVal}}
-Read a long value from the key and return it (lDefault is returned if key not
-found).
+Another version of {\it Read()}, returning the string value directly.
-NB: writing
-\begin{verbatim}
- conf->Read("key", 0);
-\end{verbatim}
-won't work because the call is ambiguous: compiler can not choose between 2
-{\it Read} functions. Instead, just write
-\begin{verbatim}
- conf->Read("key", 0l);
-\end{verbatim}
+\constfunc{bool}{Read}{\param{const wxString\& }{ key}, \param{long*}{ l}}
-\constfunc{bool}{Read}{\param{long*}{ pl}, \param{const char*}{ szKey}, \param{long}{ lDefault = 0}}
+Reads a long value, returning TRUE if the value was found. If the value was
+not found, {\it l} is not changed.
-Another function for reading long values, it returns TRUE if the key was
-really read from config file and FALSE if the default value was used.
+\constfunc{bool}{Read}{\param{const wxString\& }{ key}, \param{long*}{ l},
+\param{long}{ defaultVal}}
-\membersection{wxConfigBase::Write}\label{wxconfigbasewrite}
+Reads a long value, returning TRUE if the value was found. If the value was
+not found, {\it defaultVal} is used instead.
-\func{bool}{Write}{\param{const char*}{ szKey}, \param{const char*}{ szValue}}
+\constfunc{long }{Read}{\param{const wxString\& }{key}, \param{long}{
+defaultVal}}
-\func{bool}{Write}{\param{const char*}{ szKey}, \param{long}{ lValue}}
+Reads a long value from the key and returns it. {\it defaultVal} is returned
+if the key is not found.
-Both of these functions write the specified value to the config file and
-return TRUE on success.
+NB: writing
-\membersection{wxConfigBase::Flush}\label{wxconfigbaseflush}
+{\small \begin{verbatim} conf->Read("key", 0); \end{verbatim} }
-\func{bool}{Flush}{\param{bool }{bCurrentOnly = FALSE}}
+won't work because the call is ambiguous: compiler can not choose between two
+{\it Read} functions. Instead, write:
-permanently writes all changes (otherwise, they're only written from object's
-destructor)
+{\small \begin{verbatim} conf->Read("key", 0l); \end{verbatim} }
-\membersection{wxConfigBase::DeleteEntry}\label{wxconfigbasedeleteentry}
+\constfunc{bool}{Read}{\param{const wxString\& }{ key}, \param{double*}{ d}}
-\func{bool}{DeleteEntry}{\param{const char*}{ szKey}, \param{bool}{ bDeleteGroupIfEmpty = TRUE}}
+Reads a double value, returning TRUE if the value was found. If the value was
+not found, {\it d} is not changed.
-Deletes the specified entry and the group it belongs to if
-it was the last key in it and the second parameter is true.
+\constfunc{bool}{Read}{\param{const wxString\& }{ key}, \param{double*}{ d},
+ \param{double}{ defaultVal}}
-\membersection{wxConfigBase::DeleteGroup}\label{wxconfigbasedeletegroup}
+Reads a double value, returning TRUE if the value was found. If the value was
+not found, {\it defaultVal} is used instead.
-\func{bool}{DeleteGroup}{\param{const char*}{ szKey}}
+\constfunc{bool}{Read}{\param{const wxString\& }{ key}, \param{bool*}{ b}}
-Delete the group (with all subgroups)
+Reads a bool value, returning TRUE if the value was found. If the value was
+not found, {\it b} is not changed.
-\membersection{wxConfigBase::DeleteAll}\label{wxconfigbasedeleteall}
+\constfunc{bool}{Read}{\param{const wxString\& }{ key}, \param{bool*}{ d},
+\param{bool}{ defaultVal}}
-\func{bool}{DeleteAll}{\void}
+Reads a bool value, returning TRUE if the value was found. If the value was
+not found, {\it defaultVal} is used instead.
-Delete the whole underlying object (disk file, registry key, ...). Primarly
-for use by desinstallation routine.
+\membersection{wxConfigBase::Set}\label{wxconfigbaseset}
-\membersection{wxConfigBase::IsExpandingEnvVars}\label{wxconfigbaseisexpandingenvvars}
+\func{wxConfigBase *}{Set}{\param{wxConfigBase *}{pConfig}}
-\constfunc{bool}{IsExpandingEnvVars}{\void}
+Sets the config object as the current one, returns the pointer to the previous
+current object (both the parameter and returned value may be NULL)
+
+\membersection{wxConfigBase::SetAppName}\label{wxconfigbasesetappname}
+
+\func{void }{SetAppName}{\param{const wxString\&}{ appName}}
+
+Sets the application name.
\membersection{wxConfigBase::SetExpandingEnvVars}\label{wxconfigbasesetexpandingenvvars}
\func{void}{SetExpandEnvVars }{\param{bool }{bDoIt = TRUE}}
-The second option is recording of the default values: if it is on (default
-is off) all default values are written back to the config file. This allows
-the user to see what config options may be changed and is probably useful only
-for wxFileConfig.
+Determine whether we wish to expand environment variables in key values.
-The next functions control this option.
+\membersection{wxConfigBase::SetPath}\label{wxconfigbasesetpath}
+
+\func{void}{SetPath}{\param{const wxString\& }{strPath}}
+
+Set current path: if the first character is '/', it's the absolute path,
+otherwise it's a relative path. '..' is supported. If the strPath doesn't
+exist it is created.
\membersection{wxConfigBase::SetRecordDefaults}\label{wxconfigbasesetrecorddefaults}
\func{void}{SetRecordDefaults}{\param{bool }{bDoIt = TRUE}}
-\membersection{wxConfigBase::IsRecordingDefaults}\label{wxconfigbaseisrecordingdefaults}
+Sets whether defaults are written back to the config file.
+
+If on (default is off) all default values are written back to the config file.
+This allows the user to see what config options may be changed and is probably
+useful only for wxFileConfig.
+
+\membersection{wxConfigBase::SetVendorName}\label{wxconfigbasesetvendorname}
+
+\func{void}{SetVendorName}{\param{const wxString\&}{ vendorName}}
+
+Sets the vendor name.
+
+\membersection{wxConfigBase::Write}\label{wxconfigbasewrite}
+
+\func{bool}{Write}{\param{const wxString\& }{ key}, \param{const wxString\& }{
+value}}
+
+\func{bool}{Write}{\param{const wxString\& }{ key}, \param{long}{ value}}
+
+\func{bool}{Write}{\param{const wxString\& }{ key}, \param{double}{ value}}
+
+\func{bool}{Write}{\param{const wxString\& }{ key}, \param{bool}{ value}}
+
+These functions write the specified value to the config file and return TRUE
+on success.
-\func{bool}{IsRecordingDefaults}{\void} const
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