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1 | \section{\class{wxModule}}\label{wxmodule} | |
2 | ||
3 | The module system is a very simple mechanism to allow applications (and parts of wxWidgets itself) to | |
4 | define initialization and cleanup functions that are automatically called on wxWidgets | |
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, wxWidgets will find all classes derived from wxModule, | |
10 | create an instance of each, and call each OnInit function. On exit, wxWidgets 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 | \wxheading{Include files} | |
39 | ||
40 | <wx/module.h> | |
41 | ||
42 | \latexignore{\rtfignore{\wxheading{Members}}} | |
43 | ||
44 | \membersection{wxModule::wxModule}\label{wxmodulector} | |
45 | ||
46 | \func{}{wxModule}{\void} | |
47 | ||
48 | Constructs a wxModule object. | |
49 | ||
50 | \membersection{wxModule::\destruct{wxModule}}\label{wxmoduledtor} | |
51 | ||
52 | \func{}{\destruct{wxModule}}{\void} | |
53 | ||
54 | Destructor. | |
55 | ||
56 | \membersection{wxModule::OnExit}\label{wxmoduleonexit} | |
57 | ||
58 | \func{virtual void}{OnExit}{\void} | |
59 | ||
60 | Provide this function with appropriate cleanup for your module. | |
61 | ||
62 | \membersection{wxModule::OnInit}\label{wxmoduleoninit} | |
63 | ||
64 | \func{virtual bool}{OnInit}{\void} | |
65 | ||
66 | Provide this function with appropriate initialization for your module. If the function | |
67 | returns false, wxWidgets will exit immediately. | |
68 |