added GetMargins()

[wxWidgets.git] / include / wx / app.h

diff --git a/include/wx/app.h b/include/wx/app.h
index d1825f18a6afd0c8e44c722c782cddd15ec633da..ac59394d3af155ec402ca0eb08e8b62ae921da9a 100644 (file)
--- a/include/wx/app.h
+++ b/include/wx/app.h
@@ -1,36 +1,22 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        app.h
+// Name:        wx/app.h

 // Purpose:     wxAppBase class and macros used for declaration of wxApp
 //              derived class in the user code
 // Author:      Julian Smart
 // Modified by:
 // Created:     01/02/97
 // RCS-ID:      $Id$
 // Purpose:     wxAppBase class and macros used for declaration of wxApp
 //              derived class in the user code
 // Author:      Julian Smart
 // Modified by:
 // Created:     01/02/97
 // RCS-ID:      $Id$

-// Copyright:   (c) Julian Smart and Markus Holzem
+// Copyright:   (c) Julian Smart

 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef _WX_APP_H_BASE_
 #define _WX_APP_H_BASE_
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef _WX_APP_H_BASE_
 #define _WX_APP_H_BASE_
 

-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(__APPLE__)

     #pragma interface "appbase.h"
 #endif
 
     #pragma interface "appbase.h"
 #endif
 

-// ----------------------------------------------------------------------------
-// typedefs
-// ----------------------------------------------------------------------------
-
-#if defined(__WXMSW__) || defined (__WXPM__)
-    class WXDLLEXPORT wxApp;
-    typedef wxApp* (*wxAppInitializerFunction)();
-#else
-    // returning wxApp* won't work with gcc
-    #include "wx/object.h"
-
-    typedef wxObject* (*wxAppInitializerFunction)();
-#endif
-

 // ----------------------------------------------------------------------------
 // headers we have to include here
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // headers we have to include here
 // ----------------------------------------------------------------------------


@@ -38,13 +24,27 @@
 #include "wx/event.h"       // for the base class
 
 #if wxUSE_GUI
 #include "wx/event.h"       // for the base class
 
 #if wxUSE_GUI

-    #include "wx/window.h"      // for wxTopLevelWindows
+    #include "wx/window.h"  // for wxTopLevelWindows

 #endif // wxUSE_GUI
 
 #endif // wxUSE_GUI
 

-#if wxUSE_LOG
-    #include "wx/log.h"
+#if WXWIN_COMPATIBILITY_2_2
+    #include "wx/icon.h"

 #endif
 
 #endif
 

+#include "wx/build.h"
+
+class WXDLLEXPORT wxApp;
+class WXDLLEXPORT wxCmdLineParser;
+class WXDLLEXPORT wxLog;
+class WXDLLEXPORT wxMessageOutput;
+
+// ----------------------------------------------------------------------------
+// typedefs
+// ----------------------------------------------------------------------------
+
+// the type of the function used to create a wxApp object on program start up
+typedef wxApp* (*wxAppInitializerFunction)();
+

 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------


@@ -52,35 +52,60 @@
 static const int wxPRINT_WINDOWS = 1;
 static const int wxPRINT_POSTSCRIPT = 2;
 
 static const int wxPRINT_WINDOWS = 1;
 static const int wxPRINT_POSTSCRIPT = 2;
 

+// ----------------------------------------------------------------------------
+// support for framebuffer ports
+// ----------------------------------------------------------------------------
+
+#if wxUSE_GUI
+// VS: Fullscreen/framebuffer application needs to choose display mode prior
+//     to wxWindows initialization. This class holds information about display
+//     mode. It is used by  wxApp::Set/GetDisplayMode.
+class WXDLLEXPORT wxDisplayModeInfo
+{
+public:
+    wxDisplayModeInfo() : m_ok(FALSE) {}
+    wxDisplayModeInfo(unsigned width, unsigned height, unsigned depth)
+        : m_width(width), m_height(height), m_depth(depth), m_ok(TRUE) {}
+
+    unsigned GetWidth() const { return m_width; }
+    unsigned GetHeight() const { return m_height; }
+    unsigned GetDepth() const { return m_depth; }
+    bool IsOk() const { return m_ok; }
+
+private:
+    unsigned m_width, m_height, m_depth;
+    bool     m_ok;
+};
+#endif
+

 // ----------------------------------------------------------------------------
 // the common part of wxApp implementations for all platforms
 // ----------------------------------------------------------------------------
 
 class WXDLLEXPORT wxAppBase : public wxEvtHandler
 {
 // ----------------------------------------------------------------------------
 // the common part of wxApp implementations for all platforms
 // ----------------------------------------------------------------------------
 
 class WXDLLEXPORT wxAppBase : public wxEvtHandler
 {

+    DECLARE_NO_COPY_CLASS(wxAppBase)
+

 public:
 public:

+    wxAppBase();
+    virtual ~wxAppBase();
+

     // the virtual functions which may/must be overridden in the derived class
     // -----------------------------------------------------------------------
     // the virtual functions which may/must be overridden in the derived class
     // -----------------------------------------------------------------------

-#ifdef __WXMAC_X__
-    virtual ~wxAppBase() {}  // Added min for Mac X
-#endif
+

         // called during the program initialization, returning FALSE from here
         // prevents the program from continuing - it's a good place to create
         // the top level program window and return TRUE.
         //
         // Override: always in GUI application, rarely in console ones.
         // called during the program initialization, returning FALSE from here
         // prevents the program from continuing - it's a good place to create
         // the top level program window and return TRUE.
         //
         // Override: always in GUI application, rarely in console ones.

-#if wxUSE_GUI
-    virtual bool OnInit() { return FALSE; };
-#else // !GUI
-    virtual bool OnInit() { return TRUE; };
-#endif // wxUSE_GUI
+    virtual bool OnInit();

 
 #if wxUSE_GUI
         // a platform-dependent version of OnInit(): the code here is likely to
         // depend on the toolkit. default version does nothing.
         //
         // Override: rarely.
 
 #if wxUSE_GUI
         // a platform-dependent version of OnInit(): the code here is likely to
         // depend on the toolkit. default version does nothing.
         //
         // Override: rarely.

-    virtual bool OnInitGui() { return TRUE; }
+    virtual bool OnInitGui();

 #endif // wxUSE_GUI
 
         // called to start program execution - the default version just enters
 #endif // wxUSE_GUI
 
         // called to start program execution - the default version just enters


@@ -91,7 +116,7 @@ public:
         //
         // Override: rarely in GUI applications, always in console ones.
 #if wxUSE_GUI
         //
         // Override: rarely in GUI applications, always in console ones.
 #if wxUSE_GUI

-    virtual int OnRun() { return MainLoop(); };
+    virtual int OnRun();

 #else // !GUI
     virtual int OnRun() = 0;
 #endif // wxUSE_GUI
 #else // !GUI
     virtual int OnRun() = 0;
 #endif // wxUSE_GUI


@@ -134,6 +159,24 @@ public:
         // process the first event in the event queue (blocks until an event
         // apperas if there are none currently)
     virtual void Dispatch() = 0;
         // process the first event in the event queue (blocks until an event
         // apperas if there are none currently)
     virtual void Dispatch() = 0;

+
+        // process all currently pending events right now
+        //
+        // it is an error to call Yield() recursively unless the value of
+        // onlyIfNeeded is TRUE
+        //
+        // WARNING: this function is dangerous as it can lead to unexpected
+        //          reentrancies (i.e. when called from an event handler it
+        //          may result in calling the same event handler again), use
+        //          with _extreme_ care or, better, don't use at all!
+    virtual bool Yield(bool onlyIfNeeded = FALSE) = 0;
+
+        // this virtual function is called in the GUI mode when the application
+        // becomes idle and normally just sends wxIdleEvent to all interested
+        // parties
+        //
+        // it should return TRUE if more idle events are needed, FALSE if not
+    virtual bool ProcessIdle() = 0;

 #endif // wxUSE_GUI
 
     // application info: name, description, vendor
 #endif // wxUSE_GUI
 
     // application info: name, description, vendor


@@ -165,6 +208,9 @@ public:
     // top level window functions
     // --------------------------
 
     // top level window functions
     // --------------------------
 

+        // return TRUE if our app has focus
+    virtual bool IsActive() const { return m_isActive; }
+

         // set the "main" top level window
     void SetTopWindow(wxWindow *win) { m_topWindow = win; }
 
         // set the "main" top level window
     void SetTopWindow(wxWindow *win) { m_topWindow = win; }
 


@@ -183,14 +229,44 @@ public:
 
         // control the exit behaviour: by default, the program will exit the
         // main loop (and so, usually, terminate) when the last top-level
 
         // control the exit behaviour: by default, the program will exit the
         // main loop (and so, usually, terminate) when the last top-level

-        // program window is deleted. Beware that if you disabel this (with
-        // SetExitOnFrameDelete(FALSE)), you'll have to call ExitMainLoop()
-        // explicitly from somewhere.
-    void SetExitOnFrameDelete(bool flag) { m_exitOnFrameDelete = flag; }
-    bool GetExitOnFrameDelete() const { return m_exitOnFrameDelete; }
+        // program window is deleted. Beware that if you disable this behaviour
+        // (with SetExitOnFrameDelete(FALSE)), you'll have to call
+        // ExitMainLoop() explicitly from somewhere.
+    void SetExitOnFrameDelete(bool flag)
+        { m_exitOnFrameDelete = flag ? Yes : No; }
+    bool GetExitOnFrameDelete() const
+        { return m_exitOnFrameDelete == Yes; }

 
 #endif // wxUSE_GUI
 
 
 #endif // wxUSE_GUI
 

+    // cmd line parsing stuff
+    // ----------------------
+
+    // all of these methods may be overridden in the derived class to
+    // customize the command line parsing (by default only a few standard
+    // options are handled)
+    //
+    // you also need to call wxApp::OnInit() from YourApp::OnInit() for all
+    // this to work
+
+#if wxUSE_CMDLINE_PARSER
+    // this one is called from OnInit() to add all supported options
+    // to the given parser
+    virtual void OnInitCmdLine(wxCmdLineParser& parser);
+
+    // called after successfully parsing the command line, return TRUE
+    // to continue and FALSE to exit
+    virtual bool OnCmdLineParsed(wxCmdLineParser& parser);
+
+    // called if "--help" option was specified, return TRUE to continue
+    // and FALSE to exit
+    virtual bool OnCmdLineHelp(wxCmdLineParser& parser);
+
+    // called if incorrect command line options were given, return
+    // FALSE to abort and TRUE to continue
+    virtual bool OnCmdLineError(wxCmdLineParser& parser);
+#endif // wxUSE_CMDLINE_PARSER
+

     // miscellaneous customization functions
     // -------------------------------------
 
     // miscellaneous customization functions
     // -------------------------------------
 


@@ -199,23 +275,28 @@ public:
         // user-defined class (default implementation creates a wxLogGui
         // object) - this log object is used by default by all wxLogXXX()
         // functions.
         // user-defined class (default implementation creates a wxLogGui
         // object) - this log object is used by default by all wxLogXXX()
         // functions.

-    virtual wxLog *CreateLogTarget()
-#if wxUSE_GUI
-        { return new wxLogGui; }
-#else // !GUI
-        { return new wxLogStderr; }
-#endif // wxUSE_GUI
+    virtual wxLog *CreateLogTarget();

 #endif // wxUSE_LOG
 
 #endif // wxUSE_LOG
 

+        // similar to CreateLogTarget() but for the global wxMessageOutput
+        // object
+    virtual wxMessageOutput *CreateMessageOutput();
+

 #if wxUSE_GUI
 #if wxUSE_GUI

+
+#if WXWIN_COMPATIBILITY_2_2

         // get the standard icon used by wxWin dialogs - this allows the user
         // to customize the standard dialogs. The 'which' parameter is one of
         // wxICON_XXX values
         // get the standard icon used by wxWin dialogs - this allows the user
         // to customize the standard dialogs. The 'which' parameter is one of
         // wxICON_XXX values

-    virtual wxIcon GetStdIcon(int which) const = 0;
+    virtual wxIcon GetStdIcon(int WXUNUSED(which)) const { return wxNullIcon; }
+#endif

 
 

-        // VZ: what does this do exactly?
-    void SetWantDebugOutput( bool flag ) { m_wantDebugOutput = flag; }
-    bool GetWantDebugOutput() const { return m_wantDebugOutput; }
+        // Get display mode that is used use. This is only used in framebuffer wxWin ports
+        // (such as wxMGL).
+    virtual wxDisplayModeInfo GetDisplayMode() const { return wxDisplayModeInfo(); }
+        // Set display mode to use. This is only used in framebuffer wxWin ports
+        // (such as wxMGL). This method should be called from wxApp:OnInitGui
+    virtual bool SetDisplayMode(const wxDisplayModeInfo& WXUNUSED(info)) { return TRUE; }

 
         // set use of best visual flag (see below)
     void SetUseBestVisual( bool flag ) { m_useBestVisual = flag; }
 
         // set use of best visual flag (see below)
     void SetUseBestVisual( bool flag ) { m_useBestVisual = flag; }


@@ -227,8 +308,55 @@ public:
         // printing.
     virtual void SetPrintMode(int WXUNUSED(mode)) { }
     int GetPrintMode() const { return wxPRINT_POSTSCRIPT; }
         // printing.
     virtual void SetPrintMode(int WXUNUSED(mode)) { }
     int GetPrintMode() const { return wxPRINT_POSTSCRIPT; }

+
+    // called by toolkit-specific code to set the app status: active (we have
+    // focus) or not and also the last window which had focus before we were
+    // deactivated
+    virtual void SetActive(bool isActive, wxWindow *lastFocus);

 #endif // wxUSE_GUI
 
 #endif // wxUSE_GUI
 

+    // this method allows to filter all the events processed by the program, so
+    // you should try to return quickly from it to avoid slowing down the
+    // program to the crawl
+    //
+    // return value should be -1 to continue with the normal event processing,
+    // or TRUE or FALSE to stop further processing and pretend that the event
+    // had been already processed or won't be processed at all, respectively
+    virtual int FilterEvent(wxEvent& event);
+
+    // debugging support
+    // -----------------
+
+    // this function is called when an assert failure occurs, the base class
+    // version does the normal processing (i.e. shows the usual assert failure
+    // dialog box)
+    //
+    // the arguments are the place where the assert occured, the text of the
+    // assert itself and the user-specified message
+#ifdef __WXDEBUG__
+    virtual void OnAssert(const wxChar *file,
+                          int line,
+                          const wxChar *cond,
+                          const wxChar *msg);
+#endif // __WXDEBUG__
+
+    // check that the wxBuildOptions object (constructed in the application
+    // itself, usually the one from IMPLEMENT_APP() macro) matches the build
+    // options of the library and abort if it doesn't
+    static bool CheckBuildOptions(const wxBuildOptions& buildOptions);
+
+    // deprecated functions, please updae your code to not use them!
+    // -------------------------------------------------------------
+
+#if WXWIN_COMPATIBILITY_2_2
+    // used by obsolete wxDebugMsg only
+    void SetWantDebugOutput( bool flag ) { m_wantDebugOutput = flag; }
+    bool GetWantDebugOutput() const { return m_wantDebugOutput; }
+
+    // TRUE if the application wants to get debug output
+    bool m_wantDebugOutput;
+#endif // WXWIN_COMPATIBILITY_2_2
+

     // implementation only from now on
     // -------------------------------
 
     // implementation only from now on
     // -------------------------------
 


@@ -245,7 +373,6 @@ public:
     int      argc;
     wxChar **argv;
 
     int      argc;
     wxChar **argv;
 

-//private:

 protected:
     // function used for dynamic wxApp creation
     static wxAppInitializerFunction m_appInitFn;
 protected:
     // function used for dynamic wxApp creation
     static wxAppInitializerFunction m_appInitFn;


@@ -255,19 +382,27 @@ protected:
              m_appName,         // app name
              m_className;       // class name
 
              m_appName,         // app name
              m_className;       // class name
 

-    // if TRUE, exit the main loop when the last top level window is deleted
-    bool m_exitOnFrameDelete;
+#if wxUSE_GUI
+    // the main top level window - may be NULL
+    wxWindow *m_topWindow;

 
 

-    // TRUE if the application wants to get debug output
-    bool m_wantDebugOutput;
+    // if Yes, exit the main loop when the last top level window is deleted, if
+    // No don't do it and if Later -- only do it once we reach our OnRun()
+    //
+    // the explanation for using this strange scheme is given in appcmn.cpp
+    enum
+    {
+        Later = -1,
+        No,
+        Yes
+    } m_exitOnFrameDelete;

 
     // TRUE if the apps whats to use the best visual on systems where
     // more than one are available (Sun, SGI, XFree86 4.0 ?)
     bool m_useBestVisual;
 
 
     // TRUE if the apps whats to use the best visual on systems where
     // more than one are available (Sun, SGI, XFree86 4.0 ?)
     bool m_useBestVisual;
 

-#if wxUSE_GUI
-    // the main top level window - may be NULL
-    wxWindow *m_topWindow;
+    // does any of our windows has focus?
+    bool m_isActive;

 #endif // wxUSE_GUI
 };
 
 #endif // wxUSE_GUI
 };
 


@@ -280,16 +415,18 @@ protected:
         #include "wx/msw/app.h"
     #elif defined(__WXMOTIF__)
         #include "wx/motif/app.h"
         #include "wx/msw/app.h"
     #elif defined(__WXMOTIF__)
         #include "wx/motif/app.h"

-    #elif defined(__WXQT__)
-        #include "wx/qt/app.h"
+    #elif defined(__WXMGL__)
+        #include "wx/mgl/app.h"

     #elif defined(__WXGTK__)
         #include "wx/gtk/app.h"
     #elif defined(__WXGTK__)
         #include "wx/gtk/app.h"

+    #elif defined(__WXX11__)
+        #include "wx/x11/app.h"

     #elif defined(__WXMAC__)
         #include "wx/mac/app.h"
     #elif defined(__WXMAC__)
         #include "wx/mac/app.h"

+    #elif defined(__WXCOCOA__)
+        #include "wx/cocoa/app.h"

     #elif defined(__WXPM__)
         #include "wx/os2/app.h"
     #elif defined(__WXPM__)
         #include "wx/os2/app.h"

-    #elif defined(__WXSTUBS__)
-        #include "wx/stubs/app.h"

     #endif
 #else // !GUI
     // can't use typedef because wxApp forward declared as a class
     #endif
 #else // !GUI
     // can't use typedef because wxApp forward declared as a class


@@ -326,7 +463,7 @@ extern void WXDLLEXPORT wxWakeUpIdle();
 
 // Post a message to the given eventhandler which will be processed during the
 // next event loop iteration
 
 // Post a message to the given eventhandler which will be processed during the
 // next event loop iteration

-inline void WXDLLEXPORT wxPostEvent(wxEvtHandler *dest, wxEvent& event)
+inline void wxPostEvent(wxEvtHandler *dest, wxEvent& event)

 {
     wxCHECK_RET( dest, wxT("need an object to post event to in wxPostEvent") );
 
 {
     wxCHECK_RET( dest, wxT("need an object to post event to in wxPostEvent") );
 


@@ -351,6 +488,27 @@ extern bool WXDLLEXPORT wxInitialize();
 // wxUninitialize()
 extern void WXDLLEXPORT wxUninitialize();
 
 // wxUninitialize()
 extern void WXDLLEXPORT wxUninitialize();
 

+// create an object of this class on stack to initialize/cleanup thel ibrary
+// automatically
+class WXDLLEXPORT wxInitializer
+{
+public:
+    // initialize the library
+    wxInitializer() { m_ok = wxInitialize(); }
+
+    // has the initialization been successful? (explicit test)
+    bool IsOk() const { return m_ok; }
+
+    // has the initialization been successful? (implicit test)
+    operator bool() const { return m_ok; }
+
+    // dtor only does clean up if we initialized the library properly
+    ~wxInitializer() { if ( m_ok ) wxUninitialize(); }
+
+private:
+    bool m_ok;
+};
+

 #endif // !wxUSE_GUI
 
 // ----------------------------------------------------------------------------
 #endif // !wxUSE_GUI
 
 // ----------------------------------------------------------------------------


@@ -372,10 +530,15 @@ public:
 // be in your main program (e.g. hello.cpp). Now IMPLEMENT_APP should add this
 // code if required.
 
 // be in your main program (e.g. hello.cpp). Now IMPLEMENT_APP should add this
 // code if required.
 

-#if !wxUSE_GUI || defined(__WXMOTIF__) || defined(__WXGTK__) || defined(__WXPM__) || (defined(__WXMAC__) && defined(__UNIX__))
+#if !wxUSE_GUI || defined(__WXMOTIF__) || defined(__WXGTK__) || defined(__WXPM__) || defined(__WXMGL__) || defined(__WXCOCOA__)

     #define IMPLEMENT_WXWIN_MAIN \
     #define IMPLEMENT_WXWIN_MAIN \

-        extern int wxEntry( int argc, char *argv[] ); \
-        int main(int argc, char *argv[]) { return wxEntry(argc, argv); }
+        extern int wxEntry( int argc, char **argv ); \
+        int main(int argc, char **argv) { return wxEntry(argc, argv); }
+#elif defined(__WXMAC__)
+    // wxMac seems to have a specific wxEntry prototype
+    #define IMPLEMENT_WXWIN_MAIN \
+        extern int wxEntry( int argc, char **argv, bool enterLoop = TRUE ); \
+        int main(int argc, char **argv) { return wxEntry(argc, argv); }

 #elif defined(__WXMSW__) && defined(WXUSINGDLL)
     // NT defines APIENTRY, 3.x not
     #if !defined(WXAPIENTRY)
 #elif defined(__WXMSW__) && defined(WXUSINGDLL)
     // NT defines APIENTRY, 3.x not
     #if !defined(WXAPIENTRY)


@@ -398,21 +561,41 @@ public:
     #define IMPLEMENT_WXWIN_MAIN
 #endif
 
     #define IMPLEMENT_WXWIN_MAIN
 #endif
 

-// Use this macro exactly once, the argument is the name of the wxApp-derived
-// class which is the class of your application.
-#define IMPLEMENT_APP(appname)                           \
-    wxApp *wxCreateApp() { return new appname; }         \
-    wxAppInitializer wxTheAppInitializer((wxAppInitializerFunction) wxCreateApp); \
-    appname& wxGetApp() { return *(appname *)wxTheApp; } \
-    IMPLEMENT_WXWIN_MAIN
+#ifdef __WXUNIVERSAL__
+    #include "wx/univ/theme.h"
+
+    #define IMPLEMENT_WX_THEME_SUPPORT \
+        WX_USE_THEME(win32); \
+        WX_USE_THEME(gtk);
+#else
+    #define IMPLEMENT_WX_THEME_SUPPORT
+#endif

 
 // Use this macro if you want to define your own main() or WinMain() function
 // and call wxEntry() from there.
 #define IMPLEMENT_APP_NO_MAIN(appname)                   \
 
 // Use this macro if you want to define your own main() or WinMain() function
 // and call wxEntry() from there.
 #define IMPLEMENT_APP_NO_MAIN(appname)                   \

-    wxApp *wxCreateApp() { return new appname; }         \
+    wxApp *wxCreateApp()                                 \
+    {                                                    \
+        wxApp::CheckBuildOptions(wxBuildOptions());      \
+        return new appname;                              \
+    }                                                    \

     wxAppInitializer wxTheAppInitializer((wxAppInitializerFunction) wxCreateApp); \
     appname& wxGetApp() { return *(appname *)wxTheApp; }
 
     wxAppInitializer wxTheAppInitializer((wxAppInitializerFunction) wxCreateApp); \
     appname& wxGetApp() { return *(appname *)wxTheApp; }
 

+// Same as IMPLEMENT_APP() normally but doesn't include themes support in
+// wxUniversal builds
+#define IMPLEMENT_APP_NO_THEMES(appname)    \
+    IMPLEMENT_APP_NO_MAIN(appname)          \
+    IMPLEMENT_WXWIN_MAIN
+
+// Use this macro exactly once, the argument is the name of the wxApp-derived
+// class which is the class of your application.
+#define IMPLEMENT_APP(appname)              \
+    IMPLEMENT_APP_NO_THEMES(appname)        \
+    IMPLEMENT_WX_THEME_SUPPORT
+
+// this macro can be used multiple times and just allows you to use wxGetApp()
+// function

 #define DECLARE_APP(appname) extern appname& wxGetApp();
 
 #endif
 #define DECLARE_APP(appname) extern appname& wxGetApp();
 
 #endif