src/msw/main.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/main.cpp
   3 // Purpose:     WinMain/DllMain
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21     #pragma implementation
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #include "wx/event.h"
  32 #include "wx/app.h"
  33 #include "wx/cmdline.h"
  34
  35 #include "wx/msw/private.h"
  36
  37 #ifdef __BORLANDC__
  38     // BC++ has to be special: its run-time expects the DLL entry point to be
  39     // named DllEntryPoint instead of the (more) standard DllMain
  40     #define DllMain DllEntryPoint
  41 #endif
  42
  43 #if defined(__WXMICROWIN__)
  44     #define HINSTANCE HANDLE
  45 #endif
  46
  47 #if wxUSE_GUI
  48
  49 // ============================================================================
  50 // implementation: various entry points
  51 // ============================================================================
  52
  53 // ----------------------------------------------------------------------------
  54 // Windows-specific wxEntry
  55 // ----------------------------------------------------------------------------
  56
  57 WXDLLEXPORT int wxEntry(HINSTANCE hInstance,
  58                         HINSTANCE WXUNUSED(hPrevInstance),
  59                         wxCmdLineArgType WXUNUSED(pCmdLine),
  60                         int nCmdShow)
  61 {
  62     // remember the parameters Windows gave us
  63     wxSetInstance(hInstance);
  64     wxApp::m_nCmdShow = nCmdShow;
  65
  66     // parse the command line: we can't use pCmdLine in Unicode build so it is
  67     // simpler to never use it at all (this also results in a more correct
  68     // argv[0])
  69
  70     // break the command line in words
  71     wxArrayString args;
  72     const wxChar *cmdLine = ::GetCommandLine();
  73     if ( cmdLine )
  74     {
  75         args = wxCmdLineParser::ConvertStringToArgs(cmdLine);
  76     }
  77
  78     int argc = args.GetCount();
  79
  80     // +1 here for the terminating NULL
  81     wxChar **argv = new wxChar *[argc + 1];
  82     for ( int i = 0; i < argc; i++ )
  83     {
  84         argv[i] = wxStrdup(args[i]);
  85     }
  86
  87     // argv[] must be NULL-terminated
  88     argv[argc] = NULL;
  89
  90     return wxEntry(argc, argv);
  91 }
  92
  93 // May wish not to have a DllMain or WinMain, e.g. if we're programming
  94 // a Netscape plugin or if we're writing a console application
  95 #if !defined(NOMAIN)
  96
  97 extern "C"
  98 {
  99
 100 // ----------------------------------------------------------------------------
 101 // WinMain
 102 // ----------------------------------------------------------------------------
 103
 104 // Note that WinMain is also defined in dummy.obj, which is linked to
 105 // an application that is using the DLL version of wxWidgets.
 106
 107 #if defined(_WINDLL)
 108
 109 // DLL entry point
 110
 111 BOOL WINAPI
 112 DllMain(HANDLE hModule, DWORD fdwReason, LPVOID WXUNUSED(lpReserved))
 113 {
 114     // Only call wxEntry if the application itself is part of the DLL.
 115     // If only the wxWidgets library is in the DLL, then the
 116     // initialisation will be called when the application implicitly
 117     // calls WinMain.
 118 #ifndef WXMAKINGDLL
 119     switch (fdwReason)
 120     {
 121         case DLL_PROCESS_ATTACH:
 122             return wxEntry(hModule);
 123
 124         case DLL_PROCESS_DETACH:
 125             wxEntryCleanup();
 126             break;
 127     }
 128 #else
 129     (void)hModule;
 130     (void)fdwReason;
 131 #endif // !WXMAKINGDLL
 132
 133     return TRUE;
 134 }
 135
 136 #endif // _WINDLL
 137
 138 } // extern "C"
 139
 140 #endif // !NOMAIN
 141
 142 #endif // wxUSE_GUI
 143
 144 // ----------------------------------------------------------------------------
 145 // global HINSTANCE
 146 // ----------------------------------------------------------------------------
 147
 148 #if wxUSE_BASE
 149
 150 HINSTANCE wxhInstance = 0;
 151
 152 HINSTANCE wxGetInstance()
 153 {
 154     return wxhInstance;
 155 }
 156
 157 void wxSetInstance(HINSTANCE hInst)
 158 {
 159     wxhInstance = hInst;
 160 }
 161
 162 #endif // wxUSE_BASE
 163