\section{\class{wxModule}}\label{wxmodule}
-The module system is a very simple mechanism to allow applications (and parts of wxWindows itself) to
-define initialization and cleanup functions that are automatically called on wxWindows
-startup and exit.
-
-To define a new kind of module, derive a class from wxModule, override the OnInit and OnExit functions,
-and add the DECLARE\_DYNAMIC\_CLASS and IMPLEMENT\_DYNAMIC\_CLASS to header and implementation files
-(which can be the same file). On initialization, wxWindows will find all classes derived from wxModule,
-create an instance of each, and call each OnInit function. On exit, wxWindows will call the OnExit
-function for each module instance.
+The module system is a very simple mechanism to allow applications (and parts
+of wxWidgets itself) to define initialization and cleanup functions that are
+automatically called on wxWidgets startup and exit.
+
+To define a new kind of module, derive a class from wxModule, override the
+\helpref{OnInit}{wxmoduleoninit} and \helpref{OnExit}{wxmoduleonexit}
+functions, and add the DECLARE\_DYNAMIC\_CLASS and IMPLEMENT\_DYNAMIC\_CLASS to
+header and implementation files (which can be the same file). On
+initialization, wxWidgets will find all classes derived from wxModule, create
+an instance of each, and call each OnInit function. On exit, wxWidgets will
+call the OnExit function for each module instance.
+
+Note that your module class does not have to be in a header file.
+
+For example:
+
+\begin{verbatim}
+ // A module to allow DDE initialization/cleanup
+ // without calling these functions from app.cpp or from
+ // the user's application.
+ class wxDDEModule: public wxModule
+ {
+ public:
+ wxDDEModule() { }
+ virtual bool OnInit() { wxDDEInitialize(); return true; };
+ virtual void OnExit() { wxDDECleanUp(); };
+
+ private:
+ DECLARE_DYNAMIC_CLASS(wxDDEModule)
+ };
+
+ IMPLEMENT_DYNAMIC_CLASS(wxDDEModule, wxModule)
+
+
+ // Another module which uses DDE in its OnInit()
+ class MyModule: public wxModule
+ {
+ public:
+ wxDDEModule() { AddDependency(CLASSINFO(wxDDEModule)); }
+ virtual bool OnInit() { ... code using DDE ... }
+ virtual void OnExit() { ... }
+
+ private:
+ DECLARE_DYNAMIC_CLASS(wxDDEModule)
+ };
+\end{verbatim}
\wxheading{Derived from}
\helpref{wxObject}{wxobject}
+\wxheading{Include files}
+
+<wx/module.h>
+
\latexignore{\rtfignore{\wxheading{Members}}}
-\membersection{wxModule::wxModule}\label{wxmoduleconstr}
+
+\membersection{wxModule::wxModule}\label{wxmodulector}
\func{}{wxModule}{\void}
Constructs a wxModule object.
-\membersection{wxModule::\destruct{wxModule}}
+
+\membersection{wxModule::\destruct{wxModule}}\label{wxmoduledtor}
\func{}{\destruct{wxModule}}{\void}
Destructor.
-\membersection{wxModule::CleanupModules}\label{wxmodulecleanupmodules}
-
-\func{static void}{CleanupModules}{\void}
-
-Calls Exit for each module instance. Called by wxWindows on exit, so there is no
-need for an application to call it.
-
-\membersection{wxModule::Exit}\label{wxmoduleexit}
-\func{void}{Exit}{\void}
+\membersection{wxModule::AddDependency}\label{wxmoduleoninit}
-Calls OnExit. This function is called by wxWindows and should not need to be called
-by an application.
+\func{void}{AddDependency}{\param{wxClassInfo * }{dep}}
-\membersection{wxModule::Init}\label{wxmoduleinit}
+Call this function from the constructor of the derived class. \arg{dep} must be
+the \helpref{CLASSINFO}{classinfo} of a wxModule-derived class and the
+corresponding module will be loaded \emph{before} and unloaded \emph{after}
+this module.
-\func{bool}{Init}{\void}
+Note that circular dependencies are detected and result in a fatal error.
-Calls OnInit. This function is called by wxWindows and should not need to be called
-by an application.
+\wxheading{Parameters}
-\membersection{wxModule::InitializeModules}\label{wxmoduleinitializemodules}
+\docparam{dep}{The class information object for the dependent module.}
-\func{static bool}{InitializeModules}{\void}
-
-Calls Init for each module instance. Called by wxWindows on startup, so there is no
-need for an application to call it.
\membersection{wxModule::OnExit}\label{wxmoduleonexit}
Provide this function with appropriate cleanup for your module.
+
\membersection{wxModule::OnInit}\label{wxmoduleoninit}
\func{virtual bool}{OnInit}{\void}
Provide this function with appropriate initialization for your module. If the function
-returns FALSE, wxWindows will exit immediately.
-
-\membersection{wxModule::RegisterModule}\label{wxmoduleregistermodule}
-
-\func{static void}{RegisterModule}{\param{wxModule*}{ module}}
-
-Registers this module with wxWindows. Called by wxWindows on startup, so there is no
-need for an application to call it.
-
-\membersection{wxModule::RegisterModules}\label{wxmoduleregistermodules}
-
-\func{static bool}{RegisterModules}{\void}
-
-Creates instances of and registers all modules. Called by wxWindows on startup, so there is no
-need for an application to call it.
+returns false, wxWidgets will exit immediately.
projects / wxWidgets.git / blobdiff