include/wx/msw/init.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/msw/init.h
   3 // Purpose:     Windows-specific wxEntry() overload
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_MSW_INIT_H_
  13 #define _WX_MSW_INIT_H_
  14
  15 // ----------------------------------------------------------------------------
  16 // Windows-specific wxEntry() overload and wxIMPLEMENT_WXWIN_MAIN definition
  17 // ----------------------------------------------------------------------------
  18
  19 // we need HINSTANCE declaration to define WinMain()
  20 #include "wx/msw/wrapwin.h"
  21
  22 #ifndef SW_SHOWNORMAL
  23     #define SW_SHOWNORMAL 1
  24 #endif
  25
  26 // WinMain() is always ANSI, even in Unicode build, under normal Windows
  27 // but is always Unicode under CE
  28 #ifdef __WXWINCE__
  29     typedef wchar_t *wxCmdLineArgType;
  30 #else
  31     typedef char *wxCmdLineArgType;
  32 #endif
  33
  34 // Windows-only overloads of wxEntry() and wxEntryStart() which take the
  35 // parameters passed to WinMain() instead of those passed to main()
  36 extern WXDLLIMPEXP_CORE bool
  37     wxEntryStart(HINSTANCE hInstance,
  38                 HINSTANCE hPrevInstance = NULL,
  39                 wxCmdLineArgType pCmdLine = NULL,
  40                 int nCmdShow = SW_SHOWNORMAL);
  41
  42 extern WXDLLIMPEXP_CORE int
  43     wxEntry(HINSTANCE hInstance,
  44             HINSTANCE hPrevInstance = NULL,
  45             wxCmdLineArgType pCmdLine = NULL,
  46             int nCmdShow = SW_SHOWNORMAL);
  47
  48 #if defined(__BORLANDC__) && wxUSE_UNICODE
  49     // Borland C++ has the following nonstandard behaviour: when the -WU
  50     // command line flag is used, the linker expects to find wWinMain instead
  51     // of WinMain. This flag causes the compiler to define _UNICODE and
  52     // UNICODE symbols and there's no way to detect its use, so we have to
  53     // define both WinMain and wWinMain so that wxIMPLEMENT_WXWIN_MAIN works
  54     // for both code compiled with and without -WU.
  55     // See http://sourceforge.net/tracker/?func=detail&atid=309863&aid=1935997&group_id=9863
  56     // for more details.
  57     #define wxIMPLEMENT_WXWIN_MAIN_BORLAND_NONSTANDARD                      \
  58         extern "C" int WINAPI wWinMain(HINSTANCE hInstance,                 \
  59                                       HINSTANCE hPrevInstance,              \
  60                                       wchar_t * WXUNUSED(lpCmdLine),        \
  61                                       int nCmdShow)                         \
  62         {                                                                   \
  63             wxDISABLE_DEBUG_SUPPORT();                                      \
  64                                                                             \
  65             /* NB: wxEntry expects lpCmdLine argument to be char*, not */   \
  66             /*     wchar_t*, but fortunately it's not used anywhere    */   \
  67             /*     and we can simply pass NULL in:                     */   \
  68             return wxEntry(hInstance, hPrevInstance, NULL, nCmdShow);       \
  69         }
  70 #else
  71     #define wxIMPLEMENT_WXWIN_MAIN_BORLAND_NONSTANDARD
  72 #endif // defined(__BORLANDC__) && wxUSE_UNICODE
  73
  74 #define wxIMPLEMENT_WXWIN_MAIN                                              \
  75     extern "C" int WINAPI WinMain(HINSTANCE hInstance,                      \
  76                                   HINSTANCE hPrevInstance,                  \
  77                                   wxCmdLineArgType WXUNUSED(lpCmdLine),     \
  78                                   int nCmdShow)                             \
  79     {                                                                       \
  80         wxDISABLE_DEBUG_SUPPORT();                                          \
  81                                                                             \
  82         /* NB: We pass NULL in place of lpCmdLine to behave the same as  */ \
  83         /*     Borland-specific wWinMain() above. If it becomes needed   */ \
  84         /*     to pass lpCmdLine to wxEntry() here, you'll have to fix   */ \
  85         /*     wWinMain() above too.                                     */ \
  86         return wxEntry(hInstance, hPrevInstance, NULL, nCmdShow);           \
  87     }                                                                       \
  88     wxIMPLEMENT_WXWIN_MAIN_BORLAND_NONSTANDARD
  89
  90
  91 #endif // _WX_MSW_INIT_H_