docs/latex/wx/module.tex

   1 \section{\class{wxModule}}\label{wxmodule}
   2
   3 The module system is a very simple mechanism to allow applications (and parts of wxWindows itself) to
   4 define initialization and cleanup functions that are automatically called on wxWindows
   5 startup and exit.
   6
   7 To define a new kind of module, derive a class from wxModule, override the OnInit and OnExit functions,
   8 and add the DECLARE\_DYNAMIC\_CLASS and IMPLEMENT\_DYNAMIC\_CLASS to header and implementation files
   9 (which can be the same file). On initialization, wxWindows will find all classes derived from wxModule,
  10 create an instance of each, and call each OnInit function. On exit, wxWindows will call the OnExit
  11 function for each module instance.
  12
  13 Note that your module class does not have to be in a header file.
  14
  15 For example:
  16
  17 \begin{verbatim}
  18   // A module to allow DDE initialization/cleanup
  19   // without calling these functions from app.cpp or from
  20   // the user's application.
  21
  22   class wxDDEModule: public wxModule
  23   {
  24   DECLARE_DYNAMIC_CLASS(wxDDEModule)
  25   public:
  26       wxDDEModule() {}
  27       bool OnInit() { wxDDEInitialize(); return TRUE; };
  28       void OnExit() { wxDDECleanUp(); };
  29   };
  30
  31   IMPLEMENT_DYNAMIC_CLASS(wxDDEModule, wxModule)
  32 \end{verbatim}
  33
  34 \wxheading{Derived from}
  35
  36 \helpref{wxObject}{wxobject}
  37
  38 \latexignore{\rtfignore{\wxheading{Members}}}
  39
  40 \membersection{wxModule::wxModule}\label{wxmoduleconstr}
  41
  42 \func{}{wxModule}{\void}
  43
  44 Constructs a wxModule object.
  45
  46 \membersection{wxModule::\destruct{wxModule}}
  47
  48 \func{}{\destruct{wxModule}}{\void}
  49
  50 Destructor.
  51
  52 \membersection{wxModule::CleanupModules}\label{wxmodulecleanupmodules}
  53
  54 \func{static void}{CleanupModules}{\void}
  55
  56 Calls Exit for each module instance. Called by wxWindows on exit, so there is no
  57 need for an application to call it.
  58
  59 \membersection{wxModule::Exit}\label{wxmoduleexit}
  60
  61 \func{void}{Exit}{\void}
  62
  63 Calls OnExit. This function is called by wxWindows and should not need to be called
  64 by an application.
  65
  66 \membersection{wxModule::Init}\label{wxmoduleinit}
  67
  68 \func{bool}{Init}{\void}
  69
  70 Calls OnInit. This function is called by wxWindows and should not need to be called
  71 by an application.
  72
  73 \membersection{wxModule::InitializeModules}\label{wxmoduleinitializemodules}
  74
  75 \func{static bool}{InitializeModules}{\void}
  76
  77 Calls Init for each module instance. Called by wxWindows on startup, so there is no
  78 need for an application to call it.
  79
  80 \membersection{wxModule::OnExit}\label{wxmoduleonexit}
  81
  82 \func{virtual void}{OnExit}{\void}
  83
  84 Provide this function with appropriate cleanup for your module.
  85
  86 \membersection{wxModule::OnInit}\label{wxmoduleoninit}
  87
  88 \func{virtual bool}{OnInit}{\void}
  89
  90 Provide this function with appropriate initialization for your module. If the function
  91 returns FALSE, wxWindows will exit immediately.
  92
  93 \membersection{wxModule::RegisterModule}\label{wxmoduleregistermodule}
  94
  95 \func{static void}{RegisterModule}{\param{wxModule*}{ module}}
  96
  97 Registers this module with wxWindows. Called by wxWindows on startup, so there is no
  98 need for an application to call it.
  99
 100 \membersection{wxModule::RegisterModules}\label{wxmoduleregistermodules}
 101
 102 \func{static bool}{RegisterModules}{\void}
 103
 104 Creates instances of and registers all modules. Called by wxWindows on startup, so there is no
 105 need for an application to call it.
 106