include/wx/app.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        app.h
   3 // Purpose:     wxApp inclusion
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_APP_H_BASE_
  13 #define _WX_APP_H_BASE_
  14
  15 #ifdef __WXMSW__
  16 class WXDLLEXPORT wxApp;
  17 typedef wxApp* (*wxAppInitializerFunction) (void);
  18 #endif
  19
  20 #include "wx/object.h"
  21
  22 #ifndef __WXMSW__
  23 typedef wxObject* (*wxAppInitializerFunction) (void);  // returning wxApp* won't work with gcc
  24 #endif
  25
  26 #if defined(__WXMSW__)
  27 #include "wx/msw/app.h"
  28 #elif defined(__WXMOTIF__)
  29 #include "wx/motif/app.h"
  30 #elif defined(__WXQT__)
  31 #include "wx/qt/app.h"
  32 #elif defined(__WXGTK__)
  33 #include "wx/gtk/app.h"
  34 #elif defined(__WXMAC__)
  35 #include "wx/mac/app.h"
  36 #elif defined(__WXSTUBS__)
  37 #include "wx/stubs/app.h"
  38 #endif
  39
  40 // Having a global instance of this class allows
  41 // wxApp to be aware of the app creator function.
  42 // wxApp can then call this function to create a new
  43 // app object. Convoluted, but necessary.
  44
  45 class WXDLLEXPORT wxAppInitializer
  46 {
  47 public:
  48         wxAppInitializer(wxAppInitializerFunction fn)
  49         {
  50                 wxApp::SetInitializerFunction(fn);
  51         }
  52 };
  53
  54 // Here's a macro you can use if your compiler
  55 // really, really wants main() to be in your main program
  56 // (e.g. hello.cpp).
  57 // Now IMPLEMENT_APP should add this code if required.
  58
  59 #if defined(__AIX__) || defined(__HPUX__)
  60 #define IMPLEMENT_WXWIN_MAIN \
  61 extern int wxEntry( int argc, char *argv[] ); \
  62 int main(int argc, char *argv[]) { return wxEntry(argc, argv); }
  63
  64 #elif defined(__WXMSW__) && defined(WXUSINGDLL)
  65
  66 // NT defines APIENTRY, 3.x not
  67 #if !defined(WXAPIENTRY)
  68 #  ifdef __WATCOMC__
  69 #    define WXAPIENTRY PASCAL
  70 #  else
  71 #    define WXAPIENTRY FAR PASCAL
  72 #  endif
  73 #endif
  74
  75 #define IMPLEMENT_WXWIN_MAIN \
  76 int WXAPIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,\
  77         LPSTR m_lpCmdLine, int nCmdShow )\
  78 {\
  79     return wxEntry((WXHINSTANCE) hInstance, (WXHINSTANCE) hPrevInstance,\
  80                    m_lpCmdLine, nCmdShow);\
  81 }
  82
  83 #else
  84 #define IMPLEMENT_WXWIN_MAIN
  85 #endif
  86
  87 #define IMPLEMENT_APP(appname)                          \
  88         wxApp *wxCreateApp(void) { return new appname; }      \
  89                 wxAppInitializer wxTheAppInitializer((wxAppInitializerFunction) wxCreateApp); \
  90         appname& wxGetApp(void) { return *(appname *)wxTheApp; } \
  91         IMPLEMENT_WXWIN_MAIN
  92
  93 #define DECLARE_APP(appname) \
  94         extern appname& wxGetApp(void) ;
  95
  96
  97 #endif
  98     // _WX_APP_H_BASE_