wxConfigBase class defines the basic interface of all config classes. It can
not be used by itself (it is an abstract base class) and you will always use one
-of its derivations: wxIniConfig, wxFileConfig, wxRegConfig or any other.
+of its derivations: \helpref{wxFileConfig}{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 wxConfig
+code even easier, wxWidgets 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
+platform: i.e. wxRegConfig under Win32 and
wxFileConfig otherwise.
See \helpref{config overview}{wxconfigoverview} for the descriptions of all
\wxheading{Include files}
-<wx/config.h> (to let wxWindows choose a wxConfig class for your platform)\\
+<wx/config.h> (to let wxWidgets choose a wxConfig class for your platform)\\
<wx/confbase.h> (base config class)\\
-<wx/fileconf.h> (wxFileconfig class)\\
-<wx/msw/regconf.h> (wxRegConfig class)\\
-<wx/msw/iniconf.h> (wxIniConfig class)
+<wx/fileconf.h> (wxFileConfig class)\\
+<wx/msw/regconf.h> (wxRegConfig class)
\wxheading{Example}
\latexignore{\rtfignore{\wxheading{Function groups}}}
+
\membersection{Static functions}\label{wxconfigstaticfunctions}
These functions deal with the "default" config object. Although its usage is
consuming operation). In this case, you may create this global config object
in the very start of the program and {\it Set()} it as the default. Then, from
anywhere in your program, you may access it using the {\it Get()} function.
-Note that wxWindows will delete this config object for you during the program
-shutdown (from \helpref{wxApp::OnExit}{wxapponexit} to be precise) but you can
-also do it yourself earlier if needed.
+Note that you must delete this object (usually in \helpref{wxApp::OnExit}{wxapponexit})
+in order to avoid memory leaks, wxWidgets won't do it automatically.
As it happens, you may even further simplify the procedure described above:
you may forget about calling {\it Set()}. When {\it Get()} is called and there
is no current object, it will create one using {\it Create()} function. To
disable this behaviour {\it DontCreateOnDemand()} is provided.
-{\bf Note:} You should use either {\it Set()} or {\it Get()} because wxWindows
+{\bf Note:} You should use either {\it Set()} or {\it Get()} because wxWidgets
library itself would take advantage of it and could save various information
in it. For example \helpref{wxFontMapper}{wxfontmapper} or Unix version
of \helpref{wxFileDialog}{wxfiledialog} have ability to use wxConfig class.
\helpref{Create}{wxconfigbasecreate}\\
\helpref{DontCreateOnDemand}{wxconfigbasedontcreateondemand}
-\membersection{Constructor and destructor}
+
+\membersection{Constructor and destructor}\label{congigconstructordestructor}
\helpref{wxConfigBase}{wxconfigbasector}\\
\helpref{\destruct{wxConfigBase}}{wxconfigbasedtor}
-\membersection{Path management}
+
+\membersection{Path management}\label{configpathmanagement}
As explained in \helpref{config overview}{wxconfigoverview}, the config classes
support a file system-like hierarchy of keys (files) and groups (directories).
\helpref{SetPath}{wxconfigbasesetpath}\\
\helpref{GetPath}{wxconfigbasegetpath}
-\membersection{Enumeration}
+
+\membersection{Enumeration}\label{configenumeration}
The functions in this section allow to enumerate all entries and groups in the
config file. All functions here return false when there are no more items.
\helpref{GetNumberOfEntries}{wxconfigbasegetnumberofentries}\\
\helpref{GetNumberOfGroups}{wxconfigbasegetnumberofgroups}
-\membersection{Tests of existence}
+
+\membersection{Tests of existence}\label{configtestsofexistence}
\helpref{HasGroup}{wxconfigbasehasgroup}\\
\helpref{HasEntry}{wxconfigbasehasentry}\\
\helpref{Exists}{wxconfigbaseexists}\\
\helpref{GetEntryType}{wxconfigbasegetentrytype}
-\membersection{Miscellaneous functions}
+
+\membersection{Miscellaneous functions}\label{configmiscellaneous}
\helpref{GetAppName}{wxconfigbasegetappname}\\
\helpref{GetVendorName}{wxconfigbasegetvendorname}\\
\helpref{SetUmask}{wxfileconfigsetumask}
-\membersection{Key access}
+
+\membersection{Key access}\label{configkeyaccess}
These function are the core of wxConfigBase class: they allow you to read and
write config file data. All {\it Read} function take a default value which
\helpref{Write}{wxconfigbasewrite}\\
\helpref{Flush}{wxconfigbaseflush}
-\membersection{Rename entries/groups}
+
+\membersection{Rename entries/groups}\label{configrenaming}
The functions in this section allow to rename entries or subgroups of the
current group. They will return false on error. typically because either the
\helpref{RenameEntry}{wxconfigbaserenameentry}\\
\helpref{RenameGroup}{wxconfigbaserenamegroup}
-\membersection{Delete entries/groups}
+
+\membersection{Delete entries/groups}\label{configdeleting}
The functions in this section delete entries and/or groups of entries from the
config file. {\it DeleteAll()} is especially useful if you want to erase all
\helpref{DeleteGroup}{wxconfigbasedeletegroup}\\
\helpref{DeleteAll}{wxconfigbasedeleteall}
-\membersection{Options}
+
+\membersection{Options}\label{configoptions}
Some aspects of wxConfigBase behaviour can be changed during run-time. The
first of them is the expansion of environment variables in the string values
}}
+
\membersection{wxConfigBase::wxConfigBase}\label{wxconfigbasector}
\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}}
+ \param{long}{ style = 0},
+ \param{wxMBConv\&}{ conv = wxConvUTF8}}
This is the default and only constructor of the wxConfigBase class, and
derived classes.
of the usual storage of {\tt foo=C:$\backslash\backslash$mydir}.
The wxCONFIG\_USE\_NO\_ESCAPE\_CHARACTERS style can be helpful if your config
-file must be read or written to by a non-wxWindows program (which might not
+file must be read or written to by a non-wxWidgets program (which might not
understand the escape characters). Note, however, that if
wxCONFIG\_USE\_NO\_ESCAPE\_CHARACTERS style is used, it is is now
your application's responsibility to ensure that there is no newline or
other illegal characters in a value, before writing that value to the file.}
+\docparam{conv}{This parameter is only used by wxFileConfig when compiled
+in Unicode mode. It specifies the encoding in which the configuration file
+is written.}
+
+
\wxheading{Remarks}
By default, environment variable expansion is on and recording defaults is
off.
+
\membersection{wxConfigBase::\destruct{wxConfigBase}}\label{wxconfigbasedtor}
\func{}{\destruct{wxConfigBase}}{\void}
Empty but ensures that dtor of all derived classes is virtual.
+
\membersection{wxConfigBase::Create}\label{wxconfigbasecreate}
\func{static wxConfigBase *}{Create}{\void}
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}
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}
\func{static wxConfigBase *}{Get}{\param{bool }{CreateOnDemand = true}}
{\it CreateOnDemand} is true, creates one
(using {\it Create}) unless DontCreateOnDemand was called previously.
+
\membersection{wxConfigBase::GetAppName}\label{wxconfigbasegetappname}
\constfunc{wxString}{GetAppName}{\void}
Returns the application name.
+
\membersection{wxConfigBase::GetEntryType}\label{wxconfigbasegetentrytype}
\constfunc{enum wxConfigBase::EntryType}{GetEntryType}{\param{const wxString\& }{name}}
};
\end{verbatim}
+
\membersection{wxConfigBase::GetFirstGroup}\label{wxconfigbasegetfirstgroup}
\constfunc{bool}{GetFirstGroup}{\param{wxString\& }{str}, \param{long\&}{ index}}
\perlnote{In wxPerl this method takes no arguments and returns a 3-element
list {\tt ( continue, str, index )}.}
+
\membersection{wxConfigBase::GetFirstEntry}\label{wxconfigbasegetfirstentry}
\constfunc{bool}{GetFirstEntry}{\param{wxString\& }{str}, \param{long\&}{ index}}
\perlnote{In wxPerl this method takes no arguments and returns a 3-element
list {\tt ( continue, str, index )}.}
+
\membersection{wxConfigBase::GetNextGroup}\label{wxconfigbasegetnextgroup}
\constfunc{bool}{GetNextGroup}{\param{wxString\& }{str}, \param{long\&}{ index}}
\perlnote{In wxPerl this method only takes the {\tt index} parameter
and returns a 3-element list {\tt ( continue, str, index )}.}
+
\membersection{wxConfigBase::GetNextEntry}\label{wxconfigbasegetnextentry}
\constfunc{bool}{GetNextEntry}{\param{wxString\& }{str}, \param{long\&}{ index}}
\perlnote{In wxPerl this method only takes the {\tt index} parameter
and returns a 3-element list {\tt ( continue, str, index )}.}
+
\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}
Retrieve the current path (always as absolute path).
+
\membersection{wxConfigBase::GetVendorName}\label{wxconfigbasegetvendorname}
\constfunc{wxString}{GetVendorName}{\void}
Returns the vendor name.
+
\membersection{wxConfigBase::HasEntry}\label{wxconfigbasehasentry}
\constfunc{bool}{HasEntry}{\param{wxString\& }{strName}}
returns true if the entry by this name exists
+
\membersection{wxConfigBase::HasGroup}\label{wxconfigbasehasgroup}
\constfunc{bool}{HasGroup}{\param{const wxString\& }{strName}}
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}
\constfunc{bool}{IsRecordingDefaults}{\void}
Returns true if we are writing defaults back to the config file.
+
\membersection{wxConfigBase::Read}\label{wxconfigbaseread}
\constfunc{bool}{Read}{\param{const wxString\& }{key}, \param{wxString*}{ str}}
\end{twocollist}
}}
+
\membersection{wxConfigBase::RenameEntry}\label{wxconfigbaserenameentry}
\func{bool}{RenameEntry}{\param{const wxString\& }{ oldName}, \param{const wxString\& }{ newName}}
Returns false if the {\it oldName} doesn't exist or if {\it newName} already
exists.
+
\membersection{wxConfigBase::RenameGroup}\label{wxconfigbaserenamegroup}
\func{bool}{RenameGroup}{\param{const wxString\& }{ oldName}, \param{const wxString\& }{ newName}}
Returns false if the {\it oldName} doesn't exist or if {\it newName} already
exists.
+
\membersection{wxConfigBase::Set}\label{wxconfigbaseset}
\func{static wxConfigBase *}{Set}{\param{wxConfigBase *}{pConfig}}
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::SetExpandEnvVars}\label{wxconfigbasesetexpandenvvars}
\func{void}{SetExpandEnvVars }{\param{bool }{bDoIt = true}}
Determine whether we wish to expand environment variables in key values.
+
\membersection{wxConfigBase::SetPath}\label{wxconfigbasesetpath}
\func{void}{SetPath}{\param{const wxString\& }{strPath}}
otherwise it is 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}}
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::SetUmask}\label{wxfileconfigsetumask}
-
-\func{void}{SetUmask}{\param{int }{mode}}
-
-{\bf NB:} this function is not in the base wxConfigBase class but is only
-implemented in wxFileConfig. Moreover, this function is Unix-specific and
-doesn't do anything on other platforms.
-
-SetUmask() allows to set the mode to be used for the config file creation.
-For example, to create a config file which is not readable by other users
-(useful if it stores some sensitive information, such as passwords), you
-should do {\tt SetUmask(0077)}.
\membersection{wxConfigBase::Write}\label{wxconfigbasewrite}
\twocolitem{{\bf WriteBool(key, value)}}{Writes a boolean}
\end{twocollist}
}}
+
projects / wxWidgets.git / blobdiff