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1 | /////////////////////////////////////////////////////////////////////////////// |
2 | // Name: wx/init.h | |
77ffb593 | 3 | // Purpose: wxWidgets initialization and finalization functions |
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4 | // Author: Vadim Zeitlin |
5 | // Modified by: | |
6 | // Created: 29.06.2003 | |
77ffb593 | 7 | // Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwidgets.org> |
65571936 | 8 | // Licence: wxWindows licence |
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9 | /////////////////////////////////////////////////////////////////////////////// |
10 | ||
11 | #ifndef _WX_INIT_H_ | |
12 | #define _WX_INIT_H_ | |
13 | ||
26497253 | 14 | #include "wx/defs.h" |
e3f6cbd9 | 15 | #include "wx/chartype.h" |
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16 | |
17 | // ---------------------------------------------------------------------------- | |
18 | // wxEntry helper functions which allow to have more fine grained control | |
19 | // ---------------------------------------------------------------------------- | |
20 | ||
21 | // do common initialization, return true if ok (in this case wxEntryCleanup | |
77ffb593 | 22 | // must be called later), otherwise the program can't use wxWidgets at all |
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23 | // |
24 | // this function also creates wxTheApp as a side effect, if IMPLEMENT_APP | |
25 | // hadn't been used a dummy default application object is created | |
26 | // | |
05e2b077 VZ |
27 | // note that the parameters may be modified, this is why we pass them by |
28 | // reference! | |
bb24c68f | 29 | extern bool WXDLLIMPEXP_BASE wxEntryStart(int& argc, wxChar **argv); |
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30 | |
31 | // free the resources allocated by the library in wxEntryStart() and shut it | |
32 | // down (wxEntryStart() may be called again afterwards if necessary) | |
bb24c68f | 33 | extern void WXDLLIMPEXP_BASE wxEntryCleanup(); |
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34 | |
35 | ||
36 | // ---------------------------------------------------------------------------- | |
37 | // wxEntry: this function initializes the library, runs the main event loop | |
38 | // and cleans it up | |
39 | // ---------------------------------------------------------------------------- | |
40 | ||
41 | // note that other, platform-specific, overloads of wxEntry may exist as well | |
42 | // but this one always exists under all platforms | |
43 | // | |
44 | // returns the program exit code | |
bb24c68f | 45 | extern int WXDLLIMPEXP_BASE wxEntry(int& argc, wxChar **argv); |
94826170 | 46 | |
0acfb5bd VZ |
47 | // we overload wxEntry[Start]() to take "char **" pointers too |
48 | #if wxUSE_UNICODE | |
49 | ||
487f2d58 RD |
50 | extern bool WXDLLIMPEXP_BASE wxEntryStart(int& argc, char **argv); |
51 | extern int WXDLLIMPEXP_BASE wxEntry(int& argc, char **argv); | |
0acfb5bd VZ |
52 | |
53 | #endif// wxUSE_UNICODE | |
94826170 | 54 | |
26cdd42d VZ |
55 | // Under Windows we define additional wxEntry() overloads with signature |
56 | // compatible with WinMain() and not the traditional main(). | |
57 | #if wxUSE_GUI && defined(__WINDOWS__) | |
58 | #include "wx/msw/init.h" | |
59 | #endif | |
60 | ||
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61 | // ---------------------------------------------------------------------------- |
62 | // Using the library without (explicit) application object: you may avoid using | |
e4431849 | 63 | // wxDECLARE_APP and wxIMPLEMENT_APP macros and call the functions below instead at |
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64 | // the program startup and termination |
65 | // ---------------------------------------------------------------------------- | |
66 | ||
67 | // initialize the library (may be called as many times as needed, but each | |
68 | // call to wxInitialize() must be matched by wxUninitialize()) | |
d3688603 VS |
69 | extern bool WXDLLIMPEXP_BASE wxInitialize(); |
70 | extern bool WXDLLIMPEXP_BASE wxInitialize(int argc, wxChar **argv); | |
f380e251 | 71 | #if wxUSE_UNICODE |
d3688603 | 72 | extern bool WXDLLIMPEXP_BASE wxInitialize(int argc, char **argv); |
f380e251 | 73 | #endif |
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74 | |
75 | // clean up -- the library can't be used any more after the last call to | |
76 | // wxUninitialize() | |
bb24c68f | 77 | extern void WXDLLIMPEXP_BASE wxUninitialize(); |
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78 | |
79 | // create an object of this class on stack to initialize/cleanup the library | |
80 | // automatically | |
bb24c68f | 81 | class WXDLLIMPEXP_BASE wxInitializer |
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82 | { |
83 | public: | |
84 | // initialize the library | |
d3688603 VS |
85 | wxInitializer() |
86 | { | |
87 | m_ok = wxInitialize(); | |
88 | } | |
89 | ||
90 | wxInitializer(int argc, wxChar **argv) | |
76cebbff VZ |
91 | { |
92 | m_ok = wxInitialize(argc, argv); | |
93 | } | |
94826170 | 94 | |
f380e251 | 95 | #if wxUSE_UNICODE |
d3688603 | 96 | wxInitializer(int argc, char **argv) |
f380e251 VS |
97 | { |
98 | m_ok = wxInitialize(argc, argv); | |
99 | } | |
100 | #endif // wxUSE_UNICODE | |
101 | ||
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102 | // has the initialization been successful? (explicit test) |
103 | bool IsOk() const { return m_ok; } | |
104 | ||
105 | // has the initialization been successful? (implicit test) | |
106 | operator bool() const { return m_ok; } | |
107 | ||
108 | // dtor only does clean up if we initialized the library properly | |
109 | ~wxInitializer() { if ( m_ok ) wxUninitialize(); } | |
110 | ||
111 | private: | |
112 | bool m_ok; | |
113 | }; | |
114 | ||
115 | #endif // _WX_INIT_H_ | |
116 |